US3639706A - Reciprocating switch mechanism with improved thumbwheel actuator including rack and pinion structure - Google Patents
Reciprocating switch mechanism with improved thumbwheel actuator including rack and pinion structure Download PDFInfo
- Publication number
- US3639706A US3639706A US124377A US3639706DA US3639706A US 3639706 A US3639706 A US 3639706A US 124377 A US124377 A US 124377A US 3639706D A US3639706D A US 3639706DA US 3639706 A US3639706 A US 3639706A
- Authority
- US
- United States
- Prior art keywords
- bar
- carrier
- stationary
- movable
- gears
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/38—Adjustable resistors the contact sliding along resistive element the contact moving along a straight path
- H01C10/40—Adjustable resistors the contact sliding along resistive element the contact moving along a straight path screw operated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/001—Thumb wheel switches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/1967—Rack and pinion
Definitions
- a slide is movable lengthwise of a housing to move contact means therein along conducting means.
- a stationary rack bar Secured to the housing is a stationary rack bar that is longer than the housing and supports a carrier movable along the bar.
- a rack bar which is movable lengthwise along the stationary bar and carrier, is connected with the slide for moving it.
- Rotatably mounted on the carrier is a pair of rigidly connected coaxial gears, one of which is smaller than the other.
- the large gear meshes with the stationary rack bar and the smaller gear meshes with the movable rack bar When the gears are rotated, the one engaging the stationary bar will move the carrier along the bar, and the other gear will move the movable bar along the stationary bar a shorter distance than the carrier moves so that the slide will be moved only the shorter distance.
- FIG. 1 is a plan view
- FIG. 2 is a side view
- FIG. 3 is an end view
- FIG. 4 is an enlarged fragmentary longitudinal section taken onthe line IVIV of FIG. 1;
- FIG. 5 is an enlarged cross section taken on the line VV of FIG. 2;
- FIG. 6 is an enlarged fragmentary longitudinal section taken on the line VIVI of FIG. 1;
- FIG. 7 is a cross section taken on the line VII-VII of FIG. 6.
- the case 1 of the electrical control which will be considered herein to be a potentiometer although the invention is not limited to such a device but could be a switch or the like, is long in comparison with its height and width.
- the case there are spaced resistance and collector elements 2 and 3 provided with suitable terminals 4 extending out of the back or bottom of the case.
- the front or top of the case is provided with a central longitudinal slot 5, through which a slide 6 extends. The slide overlaps the upper and lower surfaces of the top wall of the case so that it can move only lengthwise of the slot.
- contact means such as a wire coil 7, that forms a bridging contact engaging the resistance and collector elements.
- a rack bar 9 Disposed above the case and secured to it is a rack bar 9 that is considerably longer than the case. It extends away from at least one end of the case, preferably both ends. It may be connected to the case in various ways. One way is by tongues 10 struck out of the bar and extending through holes in the upper ends of brackets 11 mounted on the opposite ends of the case. The brackets are clamped between the bar and tongues. The brackets may be designed to be inserted in a printed circuit board or a panel to support the control.
- the bottom of the carrier inside the channel is provided with a longitudinal passage, in which a movable rack bar 21 is slidably mounted.
- One side of the passage is formed in part by a pair of downwardly extending lugs 22 that engage the inner surface of the toothed flange of the stationary rack bar and extend laterally beneath the movable rack bar to support it as shown in FIG. 5.
- the upper surface of the movable bar is provided with a row of teeth.
- One end of this bar is secured to the slide, such as by a lateral fork 23 straddling and tightly engaging the projecting portion of the slide, as shown in FIGS. 1, 6 and 7.
- the central portion of the carrier above the movable rack bar is provided with a recess 24 that is open at the top and at the side of the carrier opposite to its lateral slot I5.
- the knob is provided in its top with a recess 32 having a slot 33 through its bottom.
- the thumb wheel projects up through the slot into the recess so that it can be turned by a thumb or finger, or the knob can be grasped to move the carrier without touching the thumb wheel.
- the control can be adjusted by moving the carrier 16, by means of its knob 30, along the stationary rack bar, which will cause the large gear to roll along that bar and thereby turn the small gear. Since the small gear is moved along the stationary rack by the carrier at the same time that the small gear is being turned by the larger gear, the small gear pushes the movable rack bar 21 along the stationary rack bar in the same direction the carrier is moving. However, due to the smaller diameter of the small gear, it simultaneously compels the movable rack bar to move in the opposite direction, so that the movable bar travels along the stationary bar a shorter distance than the carrier. This means that the slide 6, which is controlled by the movable rack bar through fork 23, moves slowly as compared with the carrier and therefore a shorter distance.
- the electrical control described herein has several advantages. With different gear ratios, the distance the knob needs to move in order to move the control slide its full distance can be varied. The knob can be moved rapidly, but the control will be adjusted slowly. One straight movement of the knob can give the desired adjustment, in place of repeated rotations of a knob on a rotatable control. Of course, the extremely fine adjusting is an important feature. When the control is a switch, extremely short step-by-step travel can be obtained, the limit being a matter of tolerances and not human dexterity and patience. Because of the long stroke of the knob, direct dial indication can be used. The high ratio between knob and slide movements is effected without the use of tiny parts, so the control can be rugged and reliable, manufactured at reasonable cost, and have a long life.
- the size of the control is small for its length of travel, so little chassis surface is taken up by the mounting.
- the gear and thumb wheel assembly acts like a flywheel, which gives a better feeling to the action.
- thumb wheel coaxial with said gears and rigidly connected therewith for rotating them, said wheel being larger than said gears, and a knob mounted on said carrier for moving it along the stationary rack bar, the knob being provided with a slot through which a portion of the thumb wheel projects.
- said stationary rack bar is in the form of a channel having side flanges, one of said flanges being provided with the teeth of the rack and the other flange having a lip along its outer edge projecting toward the toothed flange, and said carrier having slots receiving said lip and toothed flange to hold the carrier on the stationary bar.
- a linear motion electrical control according to claim 1, in which said stationary rack bar is in the form of a channel having side flanges, one of said flanges being provided with the teeth of the rack and the other flange having a lip along its outer edge projecting toward the toothed flange, and said carrier having slots receiving said lip and toothed flange to hold the carrier on the stationary bar, said movable rack bar being located between said flanges and parallel thereto, and said carrier having a guideway therethrough receiving the movable bar.
- a linear motion electrical control according to claim 1, in which said housing and stationary rack bar are provided with registering longitudinal slots, said slide extends through said slots, and said movable rack bar is disposed beside said slots at the side of the stationary bar opposite said housing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
A slide is movable lengthwise of a housing to move contact means therein along conducting means. Secured to the housing is a stationary rack bar that is longer than the housing and supports a carrier movable along the bar. A rack bar, which is movable lengthwise along the stationary bar and carrier, is connected with the slide for moving it. Rotatably mounted on the carrier is a pair of rigidly connected coaxial gears, one of which is smaller than the other. The large gear meshes with the stationary rack bar and the smaller gear meshes with the movable rack bar. When the gears are rotated, the one engaging the stationary bar will move the carrier along the bar, and the other gear will move the movable bar along the stationary bar a shorter distance than the carrier moves so that the slide will be moved only the shorter distance.
Description
United States Patent [151 3,639,706 Purdy Feb. 1, 1972 [54] RECIPROCATING SWITCH 2,577,955 12/1951 Dixon ..200/l6 F MECHANISM WITH IMPROVED 2,931,866 4;!960 Brown ...200/l6 F 3,047,683 7 i962 Shlesinger, .ll'. 200/153 P INCLUDING RACK AND PINION Helus et al "200/16 F STRUCTURE Harold L. Purdy, Hummelstown, Pa.
Stackpoie Carbon Company, St. Mary's, Pa.
Mar. 15, 1971 Inventor:
Assignee:
Filed:
Appl. No.:
US. Cl. ..200/l7 R, 200/16 F, 200/153 P, 74/422 Int. Cl ..H0lh 3/08, HOlh 15/16 Field of Search ..200/16 F, i7, 153 P; 74/1039, 74/29, 30, 422
References Cited UNITED STATES PATENTS Van Vleck ..200/l6 F Scott ..2()()/l6 F Burns, .lr. ..200/l 7 R Primary Examiner-J. R. Scott Attorney-Brown, Murray, Flick & Peckham [5 7] ABSTRACT A slide is movable lengthwise of a housing to move contact means therein along conducting means. Secured to the housing is a stationary rack bar that is longer than the housing and supports a carrier movable along the bar. A rack bar, which is movable lengthwise along the stationary bar and carrier, is connected with the slide for moving it. Rotatably mounted on the carrier is a pair of rigidly connected coaxial gears, one of which is smaller than the other. The large gear meshes with the stationary rack bar and the smaller gear meshes with the movable rack bar. When the gears are rotated, the one engaging the stationary bar will move the carrier along the bar, and the other gear will move the movable bar along the stationary bar a shorter distance than the carrier moves so that the slide will be moved only the shorter distance.
8 Claims, 7 Drawing Figures PATENTEU FEB H972 I 3.639.706
PAYENTED FEB H97? 3.839.706
#42040 L. Pl/ROY ATTORNEYS.
RECIPROCATING SWITCH MECHANISM WITH IMPROVED THUMBWIIEEL ACTUATOR INCLUDING RACK AND PINION STRUCTURE In linear motion electrical controls, such as potentiometers for example, it often is desirable to be able to make either a coarse adjustment or a fine adjustment. Various ideas have been advanced for doing this, but they do not always produce as fine adjustments as desired.
It is among the objects of this invention to provide a linear motion electrical control, the adjustment of which can be changed rapidly or to a very slight extent in an easy manner.
The preferred embodiment of the invention is illustrated in the accompanying drawings, in which FIG. 1 is a plan view;
FIG. 2 is a side view;
FIG. 3 is an end view;
FIG. 4 is an enlarged fragmentary longitudinal section taken onthe line IVIV of FIG. 1;
FIG. 5 is an enlarged cross section taken on the line VV of FIG. 2;
FIG. 6 is an enlarged fragmentary longitudinal section taken on the line VIVI of FIG. 1; and
FIG. 7 is a cross section taken on the line VII-VII of FIG. 6.
Referring to FIGS. 2, 6 and 7 of the drawings, the case 1 of the electrical control, which will be considered herein to be a potentiometer although the invention is not limited to such a device but could be a switch or the like, is long in comparison with its height and width. Inside the case there are spaced resistance and collector elements 2 and 3 provided with suitable terminals 4 extending out of the back or bottom of the case. The front or top of the case is provided with a central longitudinal slot 5, through which a slide 6 extends. The slide overlaps the upper and lower surfaces of the top wall of the case so that it can move only lengthwise of the slot. Inside the case the slide carries contact means, such as a wire coil 7, that forms a bridging contact engaging the resistance and collector elements.
Disposed above the case and secured to it is a rack bar 9 that is considerably longer than the case. It extends away from at least one end of the case, preferably both ends. It may be connected to the case in various ways. One way is by tongues 10 struck out of the bar and extending through holes in the upper ends of brackets 11 mounted on the opposite ends of the case. The brackets are clamped between the bar and tongues. The brackets may be designed to be inserted in a printed circuit board or a panel to support the control.
The rack bar is channel shape, as shown in FIGS. 5 and 7. The upper edge of one of its side flanges is cut to form a row of rack teeth I3. The upper edge portion of the opposite flange is turned inwardly parallel to the base of the channel to form a lip 14 that projects into a slot 15 on one side of a carrier 16. The toothed flange of the channel fits in longitudinally spaced notches 17 in the bottom of the carrier and the latter has inwardly projecting ledges l8 engaging the bottom of the channel. Consequently, the carrier is secured to the rack bar and can move only lengthwise of it. The ends of the toothed flange may be cut and bent outwardly to form stops 19 (FIGS. 1 and 3) that will prevent the carrier from leaving the ends of the bar.
The bottom of the carrier inside the channel is provided with a longitudinal passage, in which a movable rack bar 21 is slidably mounted. One side of the passage is formed in part by a pair of downwardly extending lugs 22 that engage the inner surface of the toothed flange of the stationary rack bar and extend laterally beneath the movable rack bar to support it as shown in FIG. 5. The upper surface of the movable bar is provided with a row of teeth. One end of this bar is secured to the slide, such as by a lateral fork 23 straddling and tightly engaging the projecting portion of the slide, as shown in FIGS. 1, 6 and 7. The central portion of the carrier above the movable rack bar is provided with a recess 24 that is open at the top and at the side of the carrier opposite to its lateral slot I5. In
this recess a stationary horizontal pin 25 is joined at one end to the carrier. The pin projects from the open side of the recess. Rotatably mounted on the pin are two gears that are rigidly connected together.
The inner gear 27 has a smaller diameter than the other gear 28 and meshes with the movable rack 21, although with a different arrangement of the movable rack bar the sizes of the gears could be reversed. The outer gear meshes with the teeth 13 along the adjoining flange of the stationary rack bar. It is desirable to also mount a thumb wheel29 on the outer end of the pin, the wheel being rigidly connected to the gears so that all will turn in unison. The thumb wheel has a greater diameter than the gears. A knob 30 may be mounted on the carrier in any suitable manner, such as by providing the carrier with upwardly projecting prongs 31 (FIG. 4) that fit in holes in the bottom of the knob. The knob is provided in its top with a recess 32 having a slot 33 through its bottom. The thumb wheel projects up through the slot into the recess so that it can be turned by a thumb or finger, or the knob can be grasped to move the carrier without touching the thumb wheel.
The control can be adjusted by moving the carrier 16, by means of its knob 30, along the stationary rack bar, which will cause the large gear to roll along that bar and thereby turn the small gear. Since the small gear is moved along the stationary rack by the carrier at the same time that the small gear is being turned by the larger gear, the small gear pushes the movable rack bar 21 along the stationary rack bar in the same direction the carrier is moving. However, due to the smaller diameter of the small gear, it simultaneously compels the movable rack bar to move in the opposite direction, so that the movable bar travels along the stationary bar a shorter distance than the carrier. This means that the slide 6, which is controlled by the movable rack bar through fork 23, moves slowly as compared with the carrier and therefore a shorter distance. The distance the slide is moved for any given movement of the knob is determined by the relation of the pitch diameters of the two gears. If they were both the same size, they would merely roll together along both rack bars without moving the movable bar and therefore the slide would stand still. Consequently, the closer the pitch diameter of the small gear approaches the pitch diameter of the large one, without becoming the same diameter, the slower the movable rack will be moved. It will be seen that while the knob 30 is being moved a considerable distance, the slide may be moved only a small amount, which makes fine adjustment of a potentiometer or other control very easy. If gear 27 were larger than gear 28, the movable rack would be moved in the direction opposite to that of the knob.
Extremely fine adjustment is obtained by not using the knob to move the carrier, but by turning the thumb wheel 29. Since the wheel is larger than the large gear, the gear will roll along the stationary rack a distance shorter than the distance a point on the periphery of the wheel moves while the wheel is being turned. In other words, the periphery of the large gear will turn more slowly than the periphery of the wheel. The still more slowly turning small gear, as before, will slowly move the movable rack and the slide 6 ahead. Consequently, for a few degrees of rotation of the wheel, the slide may be moved an almost imperceptible distance.
The electrical control described herein has several advantages. With different gear ratios, the distance the knob needs to move in order to move the control slide its full distance can be varied. The knob can be moved rapidly, but the control will be adjusted slowly. One straight movement of the knob can give the desired adjustment, in place of repeated rotations of a knob on a rotatable control. Of course, the extremely fine adjusting is an important feature. When the control is a switch, extremely short step-by-step travel can be obtained, the limit being a matter of tolerances and not human dexterity and patience. Because of the long stroke of the knob, direct dial indication can be used. The high ratio between knob and slide movements is effected without the use of tiny parts, so the control can be rugged and reliable, manufactured at reasonable cost, and have a long life. The size of the control is small for its length of travel, so little chassis surface is taken up by the mounting. During coarse tuning, the gear and thumb wheel assembly acts like a flywheel, which gives a better feeling to the action. By using noncircular gears and racks to match them, it would be possible to produce various knob to movable rack travel ratios. That would allow, for example, certain parts of the control to be more finely tuned than others and permit passing through other portions rapidly.
. According to the provisions of the patent statutes, I have explained the principle of my invention and have illustrated and described what I now consider to represent its best embodiment. However, I desire to have it understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically illustrated and described.
Iclaim:
l. A linear motion electrical control comprising an elongated case, electrical conducting means in the case, a slide movable lengthwise of the case, contact means in the case movable by the slide along said conducting means, a stationary rack bar secured to the case and extending away from at least one end of it, a carrier mounted on the bar for movement lengthwise thereof, a rack bar movable lengthwise along the stationary bar and carrier, means connecting the movable bar with the slide, and a pair of connected coaxial gears rotatably mounted on the carrier on an axis transverse thereto, one of the gears being smaller than the other and each meshing with one of the rack bars, one of the gears being rotatable to move the carrier and movable bar along the stationary bar, whereby the other gear will move the movable bar along the stationary bar at a different speed than the carrier moves.
2. A linear motion electrical control according to claim 1, including a thumb wheel coaxial with said gears and rigidly connected therewith for rotating them, said wheel being larger than said gears.
3. A linear motion electrical control according to claim 1,
including a thumb wheel coaxial with said gears and rigidly connected therewith for rotating them, said wheel being larger than said gears, and a knob mounted on said carrier for moving it along the stationary rack bar, the knob being provided with a slot through which a portion of the thumb wheel projects.
4. A linear motion electrical control according to claim I, in
which said stationary rack bar is in the form of a channel having side flanges, one of said flanges being provided with the teeth of the rack and the other flange having a lip along its outer edge projecting toward the toothed flange, and said carrier having slots receiving said lip and toothed flange to hold the carrier on the stationary bar.
5. A linear motion electrical control according to claim 1, in which said stationary rack bar is in the form of a channel having side flanges, one of said flanges being provided with the teeth of the rack and the other flange having a lip along its outer edge projecting toward the toothed flange, and said carrier having slots receiving said lip and toothed flange to hold the carrier on the stationary bar, said movable rack bar being located between said flanges and parallel thereto, and said carrier having a guideway therethrough receiving the movable bar.
6. A linear motion electrical control according to claim 1, in which said housing and stationary rack bar are provided with registering longitudinal slots, said slide extends through said slots, and said movable rack bar is disposed beside said slots at the side of the stationary bar opposite said housing.
7. A linear motion electrical control according to claim 1, in which said carrier is provided with a pin extending transversely of said bars, and said gears are rotatably mounted on said pm.
8. A linear motion electrical control according to claim 1, in which said large gear meshes with the stationary rack bar and the small gear meshes with the movable rack bar.
Claims (8)
1. A linear motion electrical control comprising an elongated case, electrical conducting means in the case, a slide movable lengthwise of the case, contact means in the case movable by the slide along said conducting means, a stationary rack bar secured to the case and extending away from at least one end of it, a carrier mounted on the bar for movement lengthwise thereof, a rack bar movable lengthwise along the stationary bar and carrier, means connecting the movable bar with the slide, and a pair of connected coaxial gears rotatably mounted on the carrier on an axis transverse thereto, one of the gears being smaller than the other and each meshing with one of the rack bars, one of the gears being rotatable to move the carrier and movable bar along the stationary bar, whereby the other gear will move the movable bar along the stationary bar at a different speed than the carrier moves.
2. A linear motion electrical control according to claim 1, including a thumb wheel coaxial with said gears and rigidly connected therewith for rotating them, said wheel being larger than said gears.
3. A linear motion electrical control according to clAim 1, including a thumb wheel coaxial with said gears and rigidly connected therewith for rotating them, said wheel being larger than said gears, and a knob mounted on said carrier for moving it along the stationary rack bar, the knob being provided with a slot through which a portion of the thumb wheel projects.
4. A linear motion electrical control according to claim 1, in which said stationary rack bar is in the form of a channel having side flanges, one of said flanges being provided with the teeth of the rack and the other flange having a lip along its outer edge projecting toward the toothed flange, and said carrier having slots receiving said lip and toothed flange to hold the carrier on the stationary bar.
5. A linear motion electrical control according to claim 1, in which said stationary rack bar is in the form of a channel having side flanges, one of said flanges being provided with the teeth of the rack and the other flange having a lip along its outer edge projecting toward the toothed flange, and said carrier having slots receiving said lip and toothed flange to hold the carrier on the stationary bar, said movable rack bar being located between said flanges and parallel thereto, and said carrier having a guideway therethrough receiving the movable bar.
6. A linear motion electrical control according to claim 1, in which said housing and stationary rack bar are provided with registering longitudinal slots, said slide extends through said slots, and said movable rack bar is disposed beside said slots at the side of the stationary bar opposite said housing.
7. A linear motion electrical control according to claim 1, in which said carrier is provided with a pin extending transversely of said bars, and said gears are rotatably mounted on said pin.
8. A linear motion electrical control according to claim 1, in which said large gear meshes with the stationary rack bar and the small gear meshes with the movable rack bar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12437771A | 1971-03-15 | 1971-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3639706A true US3639706A (en) | 1972-02-01 |
Family
ID=22414505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US124377A Expired - Lifetime US3639706A (en) | 1971-03-15 | 1971-03-15 | Reciprocating switch mechanism with improved thumbwheel actuator including rack and pinion structure |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3639706A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772486A (en) * | 1972-01-17 | 1973-11-13 | J Wilentchik | Side selector switch with segmented terminals and collector means |
| US3824355A (en) * | 1972-06-27 | 1974-07-16 | Asea Ab | De-energized tap changer for transformers with polyphase sliding contact assembly |
| US3858012A (en) * | 1973-05-29 | 1974-12-31 | Amp Inc | Operating means for hermetically sealed double-throw double-pole switch |
| US3971903A (en) * | 1974-11-25 | 1976-07-27 | Wilentchik Jerzy J | Multi slider switch |
| US4121063A (en) * | 1975-06-03 | 1978-10-17 | Matsushita Electric Industrial Co., Limited | Power transmission flat cable for remote-controlled electrical apparatus |
| US4130080A (en) * | 1977-05-31 | 1978-12-19 | Whirlpool Corporation | Indicating control structure |
| US4168407A (en) * | 1977-11-23 | 1979-09-18 | Automatic Switch Company | Electrical switch assembly including a separate interrupter switch |
| US4423297A (en) * | 1981-05-30 | 1983-12-27 | Leopold Kostal Gmbh & Co. Kg | Steering column switch with flasher switch |
| FR2544911A1 (en) * | 1983-04-22 | 1984-10-26 | Sueddeutsche Kuehler Behr | Control switch, in particular for heating and ventilation blower |
| US20130139632A1 (en) * | 2010-05-05 | 2013-06-06 | Zf Friedrichshafen Ag | Translatory activation device with indirect latching |
| US11571826B1 (en) * | 2022-07-01 | 2023-02-07 | Darex, Llc | Knife with sliding gear |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US530465A (en) * | 1894-12-04 | John van vleck | ||
| US686349A (en) * | 1901-01-22 | 1901-11-12 | William S Janney | Electric controller. |
| US2577955A (en) * | 1949-04-02 | 1951-12-11 | Hazeltine Research Inc | Tuning control mechanism |
| US2931866A (en) * | 1956-07-25 | 1960-04-05 | Metal Products Ltd Ab | Electrical switches |
| US3047683A (en) * | 1961-03-22 | 1962-07-31 | Jr Bernard Edward Shlesinger | Multiple contact switch |
| US3222466A (en) * | 1961-12-15 | 1965-12-07 | Rca Corp | Positive acting, multiposition detent switch |
| US3309472A (en) * | 1966-03-18 | 1967-03-14 | Jr James A Burns | Gearing mechanism and printed circuitboard for a rotary switch |
-
1971
- 1971-03-15 US US124377A patent/US3639706A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US530465A (en) * | 1894-12-04 | John van vleck | ||
| US686349A (en) * | 1901-01-22 | 1901-11-12 | William S Janney | Electric controller. |
| US2577955A (en) * | 1949-04-02 | 1951-12-11 | Hazeltine Research Inc | Tuning control mechanism |
| US2931866A (en) * | 1956-07-25 | 1960-04-05 | Metal Products Ltd Ab | Electrical switches |
| US3047683A (en) * | 1961-03-22 | 1962-07-31 | Jr Bernard Edward Shlesinger | Multiple contact switch |
| US3222466A (en) * | 1961-12-15 | 1965-12-07 | Rca Corp | Positive acting, multiposition detent switch |
| US3309472A (en) * | 1966-03-18 | 1967-03-14 | Jr James A Burns | Gearing mechanism and printed circuitboard for a rotary switch |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772486A (en) * | 1972-01-17 | 1973-11-13 | J Wilentchik | Side selector switch with segmented terminals and collector means |
| US3824355A (en) * | 1972-06-27 | 1974-07-16 | Asea Ab | De-energized tap changer for transformers with polyphase sliding contact assembly |
| US3858012A (en) * | 1973-05-29 | 1974-12-31 | Amp Inc | Operating means for hermetically sealed double-throw double-pole switch |
| US3971903A (en) * | 1974-11-25 | 1976-07-27 | Wilentchik Jerzy J | Multi slider switch |
| US4121063A (en) * | 1975-06-03 | 1978-10-17 | Matsushita Electric Industrial Co., Limited | Power transmission flat cable for remote-controlled electrical apparatus |
| US4130080A (en) * | 1977-05-31 | 1978-12-19 | Whirlpool Corporation | Indicating control structure |
| US4168407A (en) * | 1977-11-23 | 1979-09-18 | Automatic Switch Company | Electrical switch assembly including a separate interrupter switch |
| US4423297A (en) * | 1981-05-30 | 1983-12-27 | Leopold Kostal Gmbh & Co. Kg | Steering column switch with flasher switch |
| FR2544911A1 (en) * | 1983-04-22 | 1984-10-26 | Sueddeutsche Kuehler Behr | Control switch, in particular for heating and ventilation blower |
| US20130139632A1 (en) * | 2010-05-05 | 2013-06-06 | Zf Friedrichshafen Ag | Translatory activation device with indirect latching |
| US9518650B2 (en) * | 2010-05-05 | 2016-12-13 | Zf Friedrichshafen Ag | Translatory activation device with indirect latching |
| US11571826B1 (en) * | 2022-07-01 | 2023-02-07 | Darex, Llc | Knife with sliding gear |
| US11679517B1 (en) | 2022-07-01 | 2023-06-20 | Darex Llc | Knife with sliding gear |
| AU2023203633B1 (en) * | 2022-07-01 | 2023-08-03 | Darex, Llc | Knife with sliding gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3639706A (en) | Reciprocating switch mechanism with improved thumbwheel actuator including rack and pinion structure | |
| DE7616736U1 (en) | Key switch | |
| DE2439421B2 (en) | PUSH BUTTON SWITCH | |
| US3465277A (en) | Linear motion potentiometer actuator | |
| DE3146854C2 (en) | ||
| DE905938C (en) | Switch for controlling the lighting system and other electrically or electromagnetically operated signaling devices in motor vehicles | |
| US3454735A (en) | Switch control device | |
| USRE24586E (en) | Electric switchboards | |
| US3914728A (en) | Variable resistor provided with means for memorizing a set value of resistance | |
| US3617979A (en) | Linear motion potentiometer with gears and rack | |
| US3883840A (en) | Adjustable spindle-type resistor element | |
| DE827429C (en) | Lighter | |
| DE740618C (en) | Electric switch with arc extinguishing by a flowing medium | |
| DE260522C (en) | ||
| DE119188C (en) | ||
| DE3011094A1 (en) | LIGHT, IN PARTICULAR BATTERY-POWERED HAND LAMP | |
| DE844941C (en) | Electric lighter lamp | |
| DE320668C (en) | Push-button switch, in which a switch pin attached to the push shaft hits against sliding surfaces of a contact lever and moves it around | |
| GB1254636A (en) | An electrical selector switch | |
| DE7239022U (en) | SLIDING RESISTANCE WITH SWITCH | |
| DE2417295C3 (en) | Push button switch | |
| DE2122992A1 (en) | Electric switch | |
| US4097828A (en) | Tuning unit with bandswitch for high frequency receivers | |
| DE1765762C3 (en) | Device for time-dependent switching of electrical circuits | |
| DE7231112U (en) | Slide resistor with switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: ALC ACQUISITION CORP., A DE CORP., NORTH CAROLIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STACKPOLE COMPONENTS COMPANY;REEL/FRAME:005604/0323 Effective date: 19861229 |