US3571545A - Toggle switch with pivotal shorting bar bridging stationary contact pins, and slidable cam block detent means - Google Patents

Toggle switch with pivotal shorting bar bridging stationary contact pins, and slidable cam block detent means Download PDF

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Publication number
US3571545A
US3571545A US775381A US3571545DA US3571545A US 3571545 A US3571545 A US 3571545A US 775381 A US775381 A US 775381A US 3571545D A US3571545D A US 3571545DA US 3571545 A US3571545 A US 3571545A
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Prior art keywords
lever
housing
toggle switch
cam
pins
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Expired - Lifetime
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US775381A
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Edward G Haderer
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Controls Company of America
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Controls Company of America
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/168—Driving mechanisms using cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H2011/0043—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for modifying the number or type of operating positions, e.g. momentary and stable

Definitions

  • the present toggle switch employing the construction set forth in the abstract achieves a small, very versatile, simple design which can be mounted directly upon printed circuit boards.
  • the switch is so constructed that good contact pressures are obtained and are assured without requiring adherence to close tolerances.
  • the switch action can be varied to provide any of the usual toggle switch actions by simply changing one part which can take any of five configurations to obtain seven types of action.
  • This one part is the sliding cam which acts against the pointed end of the toggle lever and has suitable cam surfaces to obtain the various functions.
  • the lever carries a shorting bar which is pivoted on the lever for restricted motion whereby the bar is assured proper and substantially equal contact pressure on each of the two contact pins which it contacts in an operating position.
  • the casing itself is interesting in that it is made up of identical halves which serve not only to position and retain the parts but additionally are designed to snap together to complete the asembly.
  • FIG. 1 is a plan view of the switch with one-half of the housing removed.
  • the switch provides ON-OFF-MOMENTARY ON action (or the reverse if the cam is turned over);
  • FIG. 2 is similar to FIG. 1 but shows the switch actuated
  • FIG. 3 is a sectional view along line 3-3 in FIG. 1;
  • FIG. 4 is a sectional view along line 4-4 in FIG. 1;
  • FIG. 5 is a cam giving ON-OFF-ON action
  • FIG. 6 is a cam giving MOMENTARY ON-OFF-MOMEN- TARY ON action
  • FIG. 7 is a cam giving ON-NONE-MOMENTARY ON action.
  • FIG. 8 is a cam giving ON-NONE-ON action.
  • the switch housing is made of two identical halves l0 having posts 12 and holes 14 in the corners so as to match when the halves are mated.
  • the post has a circumferential ridge-l6 which snaps into the groove 18 in the hole to hold the housing together.
  • Each half has a recess 20 which receives a boss 22 on toggle lever 24 to journal the lever with the pointed end 26 engaging the cam surface of cam 28.
  • Thecam is slidable in the elongated opening in the housing and biased toward the tip of the lever by spring 30 compressed between the cam and seat 32.
  • Lever 24 is provided with aboss 34 which serves as a pivot for shorting plate 36 which is held thereon by the proximity of the adjacent surface of the housing (see FIG.
  • each pin 40 is mounted in aligned through holes 42 in the housing to project from either side of the housing. It will be noted that the interface portion of each housing half is recessed at 44 to receive the shoulder 46 on each pin 40 to therebly retain the pins when the assembly is completed.
  • Cam 228 of FIG. 8 gives ON-NONE-ON sequence.
  • Cam 328 of FIG. 5 gives ON-OFF-ON and cam 428 of FIG. 6 gives MOMENTARY ON-OFF-MOMENTARY ON.
  • cam 128 gives ON-NONE-MOMENTARY 0N action and can be turned over to reverse the action.
  • the pins can be brought out either or both sides to further add to the versatility of the design. Since the housing and lever are plastic they can be color coded easily to aid in distinguishing them. The pins are normally brought out far enough to mount easily and directly on printed circuit boards but can be made any desired length to aid more remote hookups.
  • a toggle switch comprising;
  • a lever including a pivot post on opposed faces thereof joumaled in recesses in the housing to pennit movement of the lever to an active position on either side of a medial position;
  • a cam block slidably mounted in and guided by a cavity in the housing
  • said cam block having a cam surface against which the lever end acts and contoured to retain the lever in or return the lever from its various positions;
  • a shorting bar carried by the lever and operative to bridge either of said pairs of contacts when the lever is in either of said active positions.
  • a toggle switch according to claim 1 in which said shorting bar is mounted on the lever for limited rotation relative thereto to assure proper contact with both contact pins of each of said pairs when the lever is in. either of said active positions.
  • a toggle switch according to claim 2 in which the housing serves to retain all the switch parts in assembled position.
  • a toggle switch according to claim 3 in which the housing is comprised of two halves which snap together, said pins being mounted in cooperating holes in the housing and having a shoulder at the interface of the halves for retaining the pins.
  • a toggle switch according to claim I in which the lever has a raised boss thereon upon which the shorting bar is mounted, said bar having an arcuate notch generally loosely conforming to the adjacent pivot post while allowing restricted motion to seat the bar on the contact pins.

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)

Abstract

The point of the pivoted toggle lever acts on the cam surfaces of the spring biased slidable cam to obtain the desired action depending upon the cam configuration. The shorting bar is mounted on the toggle lever for limited pivoting action to insure equal pressure against the contact pins at the extremes of motion. The pins are brought out of the case for simple connection to printed circuit boards. All parts are mounted in and retained by the case halves which are identical and snap together.

Description

United States Patent Edward G. lladerer Newtown Square, Pa.
Nov. 13, 1968 Mar. 23, 1971 I Controls Company of America Melrose Park, Ill.
[72] Inventor [21] Appl. No. [22] Filed [45] Patented [73] Assignee [54] TOGGLE SWITCH WITH PIVOTAL SHORTING BAR BRIDGING STATIONARY CONTACT PINS, AND SLIDABLE CAM BLOCK DETENT MEANS 5 Claims, 8 Drawing Figs.
[52] U.S. Cl 200/166, 200/6, 200/153 [51] Int. Cl 1'101hl/22, H01hl/20, H0111 23/30 [50] Field of Search 200/ 1 66 (SD), 166 (CPC),61.34, 67 (A), 153, 154, 168 (A), 16.1, 166 (B)8, 6, 6B2; 74/527, 532
[56] References Cited UNITED STATES PATENTS 2,405,005 7/1946 Anderson 200/67(A)X 3,142,187 7/1964 Kaneetall 200/l6(.l)X 3,210,453 10/1965 Smith ..200/l66(B8)UX 3,352,980 11/1967 DeRougemont et al. 200/16 3 ,454,735 7/1969 Wilde 200/166(SD) 3,459,909 8/1969 Winogrocki et a1. ZOO/61.34 3,281,545 10/1966 Pierce 200/6 FOREIGN PATENTS 694,706 9/1964 Canada 200/166(SD) 1,074,150 10/1954 France 200/ l 66( SD) 1,227,103 10/1966 Germany 200/168(A) 1,018,357 1/1966 GreatBritain... 200/166(SD) 1,122,606 1/1962 Germany 200/ 6 Primary Examiner-Robert K. Schaefer Assistant Examiner-Robert A. Vanderhye Att0meys.lohn W. Michael, Gerritt D. Foster, Bayard H.
Michael, Paul R. Puemer, Joseph A. Gemignani, Andrew 0. I
Riteris and Spencer B. Michael ABSTRACT: The point of the pivoted toggle lever acts on the cam surfaces of the spring biased slidable cam to obtain the desired action depending upon the cam configuration. The shorting bar is mounted on the toggle lever for limited pivoting action to insure equal pressure against the contact pins at the extremes of motion. The pins are brought out of the case for simple connection to printed circuit boards. All parts are mounted in and retained by the case halves which are identical and snap together.
TOGGLE SWITCII WITH PIVOT AL SIIORTING BAR BRIDGING STATIONARY CONTACT PINS, AND SLIDABLE CAM BLOCK DETENT MEANS BACKGROUND OF THE INVENTION With the advent of modular printed circuit boards there is a need for a very small toggle switch which can be mounted on the board by methods similar to those employed in mounting other components. The usual toggle switch design does not satisfy the need.
SUMMARY OF THE INVENTION The present toggle switch employing the construction set forth in the abstract achieves a small, very versatile, simple design which can be mounted directly upon printed circuit boards. The switch is so constructed that good contact pressures are obtained and are assured without requiring adherence to close tolerances. The switch action can be varied to provide any of the usual toggle switch actions by simply changing one part which can take any of five configurations to obtain seven types of action. This one part is the sliding cam which acts against the pointed end of the toggle lever and has suitable cam surfaces to obtain the various functions. The lever carries a shorting bar which is pivoted on the lever for restricted motion whereby the bar is assured proper and substantially equal contact pressure on each of the two contact pins which it contacts in an operating position. These contact pins are mounted in and captured by the housing and project through the housing for connection to a printed circuit board 'or, if desired, the pigtail may be made longer for connection to more remote locations. The casing itself is interesting in that it is made up of identical halves which serve not only to position and retain the parts but additionally are designed to snap together to complete the asembly.
; DESCRIPTION OF DRAWINGS FIG. 1 is a plan view of the switch with one-half of the housing removed. The switch provides ON-OFF-MOMENTARY ON action (or the reverse if the cam is turned over);
FIG. 2 is similar to FIG. 1 but shows the switch actuated FIG. 3 is a sectional view along line 3-3 in FIG. 1;
FIG. 4 is a sectional view along line 4-4 in FIG. 1;
FIG. 5 is a cam giving ON-OFF-ON action;
' FIG. 6 is a cam giving MOMENTARY ON-OFF-MOMEN- TARY ON action;
FIG. 7 is a cam giving ON-NONE-MOMENTARY ON action; and
FIG. 8 is a cam giving ON-NONE-ON action.
DESCRIPTION OF PREFERRED EMBODIMENT The switch housing is made of two identical halves l0 having posts 12 and holes 14 in the corners so as to match when the halves are mated. The post has a circumferential ridge-l6 which snaps into the groove 18 in the hole to hold the housing together. Each half has a recess 20 which receives a boss 22 on toggle lever 24 to journal the lever with the pointed end 26 engaging the cam surface of cam 28. Thecam is slidable in the elongated opening in the housing and biased toward the tip of the lever by spring 30 compressed between the cam and seat 32. Lever 24 is provided with aboss 34 which serves as a pivot for shorting plate 36 which is held thereon by the proximity of the adjacent surface of the housing (see FIG. 3). Since the curved surface 38 of the plate 36 is generally complementary to but spaced from boss 22 the plate has limited freedom of movement relative to the toggle lever. This allows the plate to equalize the contact pressure between it and the contact pins 40. Each pin 40 is mounted in aligned through holes 42 in the housing to project from either side of the housing. It will be noted that the interface portion of each housing half is recessed at 44 to receive the shoulder 46 on each pin 40 to therebly retain the pins when the assembly is completed.
Wit the cam 2 shown in FIG. I and the lever as shown in the FIG. the switch is held in off position. If the lever end is moved up the cam is pushed back until the lever tip 26 passes over hill 48 whereupon the spring 30 pushes the cam forward and the tip slides into valley 50 as shown in FIG. 2. The spring force is now off center relative to the lever pivot and tip and the lever is held in this position, on" and the shorting plate 36 contacts the adjacent pins 49 with the plate having adequate freedom to adjust the contact pressures on the pins. If the lever is moved down it first returns to off and continued movement will short the other pair of pins 40, but the lever must be held in this position since, upon release, the spring acting on the cam will force the lever back to off." The action is described as ON-OFF-MOMENTARY ON and cam 28 can be turned over to reverse the sequence.
Cam 228 of FIG. 8 gives ON-NONE-ON sequence. Cam 328 of FIG. 5 gives ON-OFF-ON and cam 428 of FIG. 6 gives MOMENTARY ON-OFF-MOMENTARY ON.
FIG. 7 cam 128 gives ON-NONE-MOMENTARY 0N action and can be turned over to reverse the action.
From this it can be seen many sequences are available by changing or reversing the cam. The pins can be brought out either or both sides to further add to the versatility of the design. Since the housing and lever are plastic they can be color coded easily to aid in distinguishing them. The pins are normally brought out far enough to mount easily and directly on printed circuit boards but can be made any desired length to aid more remote hookups.
Iclaim:
l. A toggle switch comprising;
a. a housing;
b. a lever including a pivot post on opposed faces thereof joumaled in recesses in the housing to pennit movement of the lever to an active position on either side of a medial position;
c. a cam block slidably mounted in and guided by a cavity in the housing;
d. a spring biasing the block into contact with the end of the lever;
e. said cam block having a cam surface against which the lever end acts and contoured to retain the lever in or return the lever from its various positions;
f. a pair of stationary contact pins parallel to the pivot post and mounted in the housing on both sides of the lever and having ends projecting through the housing; and
g. a shorting bar carried by the lever and operative to bridge either of said pairs of contacts when the lever is in either of said active positions.
2. A toggle switch according to claim 1 in which said shorting bar is mounted on the lever for limited rotation relative thereto to assure proper contact with both contact pins of each of said pairs when the lever is in. either of said active positions.
3. A toggle switch according to claim 2 in which the housing serves to retain all the switch parts in assembled position.
4. A toggle switch according to claim 3 in which the housing is comprised of two halves which snap together, said pins being mounted in cooperating holes in the housing and having a shoulder at the interface of the halves for retaining the pins.
5. A toggle switch according to claim I in which the lever has a raised boss thereon upon which the shorting bar is mounted, said bar having an arcuate notch generally loosely conforming to the adjacent pivot post while allowing restricted motion to seat the bar on the contact pins.

Claims (5)

1. A toggle switch comprising: a. a housing; b. a lever including a pivot post on opposed faces thereof journaled in recesses in the housing to permit movement of the lever to an active position on either side of a medial position; c. a cam block slidably mounted in and guided by a cavity in the housing; d. a spring biasing the block into contact with the end of the lever; e. said cam block having a cam surface against which the lever end acts and contoured to retain the lever in or return the lever from its various positions; f. a pair of stationary contact pins parallel to the pivot post and mounted in the housing on both sides of the lever and having ends projecting through the housing; and g. a shorting bar carried by the lever and operative to bridge either of said pairs of contacts when the lever is in either of said active positions.
2. A toggle switch according to claim 1 in which said shorting bar is mounted on the lever for limited rotation relative thereto to assure proper contact with both contact pins of each of said pairs when the lever is in Either of said active positions.
3. A toggle switch according to claim 2 in which the housing serves to retain all the switch parts in assembled position.
4. A toggle switch according to claim 3 in which the housing is comprised of two halves which snap together, said pins being mounted in cooperating holes in the housing and having a shoulder at the interface of the halves for retaining the pins.
5. A toggle switch according to claim 1 in which the lever has a raised boss thereon upon which the shorting bar is mounted, said bar having an arcuate notch generally loosely conforming to the adjacent pivot post while allowing restricted motion to seat the bar on the contact pins.
US775381A 1968-11-13 1968-11-13 Toggle switch with pivotal shorting bar bridging stationary contact pins, and slidable cam block detent means Expired - Lifetime US3571545A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684850A (en) * 1970-05-26 1972-08-15 Guardian Electric Mfg Co Programmable lever switch with snap-in detachable cam detent means
US3852552A (en) * 1972-09-20 1974-12-03 Fujisoku Electric Toggle switch
US4389555A (en) * 1982-04-05 1983-06-21 Heinemann Electric Company Circuit breaker with increased electrical spacing
US5070219A (en) * 1990-04-23 1991-12-03 Grosskrueger Duane D Electrical key locked switch
US5158172A (en) * 1991-01-28 1992-10-27 Otto Engineering, Inc. Toggle switch
US5343007A (en) * 1992-05-12 1994-08-30 Otto Engineering, Inc. Rocker switch
US5446253A (en) * 1994-04-21 1995-08-29 Eaton Corporation Switch actuator assembly
US5861796A (en) * 1997-04-18 1999-01-19 Easton Corporation Multiple position hall effect switch with lever actuator biasing mechanism
WO1999005691A1 (en) * 1997-07-22 1999-02-04 Lear Automotive Dearborn, Inc. Universal switch
US20040065534A1 (en) * 2001-11-13 2004-04-08 Noel Mayo Wallbox dimmer switch having side-by-side pushbutton and dimmer actuators
US20110061488A1 (en) * 2009-09-15 2011-03-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Steering wheel with at least one shift paddle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284308B (en) * 1991-03-08 1995-09-27 Bun Wong Electrical switch
GB2289373B (en) * 1994-05-11 1998-03-11 Dewhurst Plc Improvements in or relating to control switches

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405005A (en) * 1943-06-30 1946-07-30 Trumbull Electric Mfg Co Double-throw switch
FR1074150A (en) * 1953-02-09 1954-10-01 New switch
DE1122606B (en) * 1955-11-23 1962-01-25 Gelbey Sarl Ets Electrical switch for plug contacts
US3142187A (en) * 1960-12-22 1964-07-28 Gen Electric Rotatable switch actuators
CA694706A (en) * 1964-09-22 F. Duncan Eugene Treadle switch
US3210453A (en) * 1961-10-20 1965-10-05 American Mach & Foundry Method for producing an electrical contact and terminal board
GB1018357A (en) * 1963-11-16 1966-01-26 Rau Swf Autozubehoer Improvements in switches for direction indicators of mechanically propelled vehicles
DE1227103B (en) * 1960-07-25 1966-10-20 Licentia Gmbh Insulating housing based on the shell construction principle for an electrical switchgear
US3281545A (en) * 1965-12-20 1966-10-25 E & P Engineering Res & Dev Co Toggle switches
US3352980A (en) * 1964-10-14 1967-11-14 Godefroy Marie Christiau Du De Slidable switch actuator contacts and structure associated therewith
US3454735A (en) * 1967-11-06 1969-07-08 Leon G Wilde Switch control device
US3459909A (en) * 1967-09-18 1969-08-05 Essex International Inc Vehicle direction signaling apparatus with abutment means releasably arresting the apparatus in an intermediate position

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA694706A (en) * 1964-09-22 F. Duncan Eugene Treadle switch
US2405005A (en) * 1943-06-30 1946-07-30 Trumbull Electric Mfg Co Double-throw switch
FR1074150A (en) * 1953-02-09 1954-10-01 New switch
DE1122606B (en) * 1955-11-23 1962-01-25 Gelbey Sarl Ets Electrical switch for plug contacts
DE1227103B (en) * 1960-07-25 1966-10-20 Licentia Gmbh Insulating housing based on the shell construction principle for an electrical switchgear
US3142187A (en) * 1960-12-22 1964-07-28 Gen Electric Rotatable switch actuators
US3210453A (en) * 1961-10-20 1965-10-05 American Mach & Foundry Method for producing an electrical contact and terminal board
GB1018357A (en) * 1963-11-16 1966-01-26 Rau Swf Autozubehoer Improvements in switches for direction indicators of mechanically propelled vehicles
US3352980A (en) * 1964-10-14 1967-11-14 Godefroy Marie Christiau Du De Slidable switch actuator contacts and structure associated therewith
US3281545A (en) * 1965-12-20 1966-10-25 E & P Engineering Res & Dev Co Toggle switches
US3459909A (en) * 1967-09-18 1969-08-05 Essex International Inc Vehicle direction signaling apparatus with abutment means releasably arresting the apparatus in an intermediate position
US3454735A (en) * 1967-11-06 1969-07-08 Leon G Wilde Switch control device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684850A (en) * 1970-05-26 1972-08-15 Guardian Electric Mfg Co Programmable lever switch with snap-in detachable cam detent means
US3852552A (en) * 1972-09-20 1974-12-03 Fujisoku Electric Toggle switch
US4389555A (en) * 1982-04-05 1983-06-21 Heinemann Electric Company Circuit breaker with increased electrical spacing
US5070219A (en) * 1990-04-23 1991-12-03 Grosskrueger Duane D Electrical key locked switch
US5158172A (en) * 1991-01-28 1992-10-27 Otto Engineering, Inc. Toggle switch
US5343007A (en) * 1992-05-12 1994-08-30 Otto Engineering, Inc. Rocker switch
US5446253A (en) * 1994-04-21 1995-08-29 Eaton Corporation Switch actuator assembly
US5861796A (en) * 1997-04-18 1999-01-19 Easton Corporation Multiple position hall effect switch with lever actuator biasing mechanism
WO1999005691A1 (en) * 1997-07-22 1999-02-04 Lear Automotive Dearborn, Inc. Universal switch
US20040065534A1 (en) * 2001-11-13 2004-04-08 Noel Mayo Wallbox dimmer switch having side-by-side pushbutton and dimmer actuators
US6727446B1 (en) 2001-11-13 2004-04-27 Lutron Electronics Co., Inc. Wallbox dimmer switch having side-by-side pushbutton and dimmer actuators
US6734381B2 (en) 2001-11-13 2004-05-11 Lutron Electronics Co., Inc. Wallbox dimmer switch having side-by-side pushbutton and dimmer actuators
US20110061488A1 (en) * 2009-09-15 2011-03-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Steering wheel with at least one shift paddle
JP2011063260A (en) * 2009-09-15 2011-03-31 Dr Ing Hcf Porsche Ag Steering wheel equipped with at least one shift paddle, and automobile
US8875596B2 (en) * 2009-09-15 2014-11-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Steering wheel with at least one shift paddle

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Publication number Publication date
FR2023197A1 (en) 1970-08-07
DE1957118A1 (en) 1970-06-11
GB1259527A (en) 1972-01-05
DE1957118B2 (en) 1976-05-26

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Effective date: 19820325