GB1185426A - Variable Resistance Device. - Google Patents
Variable Resistance Device.Info
- Publication number
- GB1185426A GB1185426A GB47974/68A GB4797468A GB1185426A GB 1185426 A GB1185426 A GB 1185426A GB 47974/68 A GB47974/68 A GB 47974/68A GB 4797468 A GB4797468 A GB 4797468A GB 1185426 A GB1185426 A GB 1185426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- block
- housing
- resistance element
- contact
- 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
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
- Transmission Devices (AREA)
Abstract
1,185,426. Variable resistors. BECKMAN INSTRUMENTS Inc. 10 Oct., 1968 [1 Nov., 1967], No. 47974/68. Heading HIS. A variable resistor comprises a housing 5 having a cavity 9 in which is mounted a resistance element and a threaded shaft 12 with one end thereof protruding through a wall of the housing, and also including a contact carrier block 16 which co-operates with shaft 12 so as to move along the length of the shaft when rotated, block 16 supporting a contact member 17 which engages the resistance element, and further including a resilient metallic member 20, for example of beryllium-copper alloy, which moves with block 16 and comprises two spring arms 21 and 22 which normally ride in the groove of threaded shaft 12 but, when block 16 is stopped by abutment 19 on the housing and while the shaft continues to rotate, will snap over the top of the threads of shaft 12 to produce a " clicking " sound. The resistance element, for example cermet material or conductive plastic, and contact element 11a are linear in form and lie parallel to one another on a non-conductive ceramic support 10. Block 16; which is rectangular in shape, is provided with a threaded bore to co-operate with shaft 12 and is formed from a plastics insulating material such as molybdenum disulfide filled nylon. Member 20 rides in a groove 23, formed in the housing, which serves to hold the member in place. In a second embodiment member 20 is provided with lugs which are pressed into block 16 to hold the member in place (Figs. 6 to 8, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67991967A | 1967-11-01 | 1967-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1185426A true GB1185426A (en) | 1970-03-25 |
Family
ID=24728931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB47974/68A Expired GB1185426A (en) | 1967-11-01 | 1968-10-10 | Variable Resistance Device. |
Country Status (3)
Country | Link |
---|---|
US (1) | US3427546A (en) |
DE (1) | DE6803358U (en) |
GB (1) | GB1185426A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3582859A (en) * | 1969-05-02 | 1971-06-01 | Bourns Inc | Leadscrew-adjusted potentiometer slider |
US3715530A (en) * | 1971-08-24 | 1973-02-06 | Westran Corp | Actuating device |
US7784374B1 (en) * | 2005-12-01 | 2010-08-31 | Konrad Corporation | Separable carrier block |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124779A (en) * | 1964-03-10 | Potentiometers | ||
CA637737A (en) * | 1962-03-06 | A. Barden Wayne | Rectilinearly adjustable variable resistor | |
US2665490A (en) * | 1953-01-19 | 1954-01-12 | Lufkin Rule Co | Micrometer gauge |
US2954539A (en) * | 1957-05-27 | 1960-09-27 | Daystrom Inc | Variable resistor |
US2945199A (en) * | 1957-10-24 | 1960-07-12 | Clarostat Mfg Co Inc | Potentiometer |
US3107336A (en) * | 1959-04-29 | 1963-10-15 | Bourns Inc | Variable resistor |
-
1967
- 1967-11-01 US US679919A patent/US3427546A/en not_active Expired - Lifetime
-
1968
- 1968-10-10 GB GB47974/68A patent/GB1185426A/en not_active Expired
- 1968-10-21 DE DE6803358U patent/DE6803358U/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3427546A (en) | 1969-02-11 |
DE6803358U (en) | 1969-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PE20 | Patent expired after termination of 20 years |