US3924220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch combined with variable resistor
Assignee: Panasonic Holdings Corp
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Filing: 1974-06-03
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Granted: 1975-12-02
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Expires: 1994-06-03
Abstract
Abstract A pull-push type switch in combination with a variable resistor is disclosed. An operating shaft of a variable resistor extends into a housing for a switch attached to a cover of the variable resistor. A fixed contact holder is attached to one side of the switch housing. Within the switch housing are disposed a movable contact holder and a movable-contact-holder actuating member which are operatively coupled to each other by a U-shaped spring in such a way that when the actuating member is shifted between a first and second positions by the operating shaft the movable contact holder may be shifted in the opposite direction between a first and a second position, thereby bridging between a selected pair of the fixed contacts of the switch. The switch may be opened or closed by the operating shaft at any angular position.
Inventors
- 👤 Hiroshi Matsui
- 👤 Hisao Kitahara
- 👤 Shozo Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:06
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H01C10/36; H01C10/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
343 words
An electrical switch combined with a variable resistor, comprising: a. a dielectric base, b. an operating shaft axially slidable and rotatably mounted in the base, c. a variable resistor mounted in said base and provided with a wiper arm rotatably coupled to the shaft and fixed in the axial direction, d. a switch cover housing fixed to the base and being provided with at least two internal walls substantially parallel to the shaft axis, one of the two parallel walls of the switch cover housing being provided with stationary switch contacts, e. a dielectric movable contact holder provided with switch contacts and slideably arranged in the switch cover housing abutting said one of said two parallel walls for motion in a direction parallel to said one of said walls, a switch actuating member slideably arranged in said switch cover housing abutting another of said two parallel walls for motion in a direction parallel to said other of said two parallel walls, an end of the operating shaft being rotatably coupled to said switch actuating member and translationally fixed to the switch actuating meMber for moving said switch actuating member in said switch covered housing in a direction parallel to the operating shaft axis, and f. spring means interconnecting said movable contact holder and said switch actuating member for biasing said movable contact holder in a direction opposite to the direction of said axial motion of the shaft and actuating member and for biasing said switch actuating member and said movable contact holder against said walls abutting said switch actuating member and movable contact holder, whereby said movable contact holder and said switch actuating member move in opposite directions and whereby said switch contacts of said movable contact holder are urged against said fixed switch contacts in a position of said movable contact holder by said spring means, said spring means operatively interconnecting said actuating member and said movable contact holder being a U-shaped spring which is adapted to force said actuating member and said movable contact holder to move away from each other.
Claim 2
Dependent Claim
343 words
An electrical switch combined with a variable resistor, comprising: a. a dielectric base, b. an operating shaft axially slidable and rotatably mounted in the base, c. a variable resistor mounted in said base and provided with a wiper arm rotatably coupled to the shaft and fixed in the axial direction, d. a switch cover housing fixed to the base and being provided with at least two internal walls substantially parallel to the shaft axis, one of the two parallel walls of the switch cover housing being provided with stationary switch contacts, e. a dielectric movable contact holder provided with switch contacts and slideably arranged in the switch cover housing abutting said one of said two parallel walls for motion in a direction parallel to said one of said walls, a switch actuating member slideably arranged in said switch cover housing abutting another of said two parallel walls for motion in a direction parallel to said other of said two parallel walls, an end of the operating shaft being rotatably coupled to said switch actuating member and translationally fixed to the switch actuating meMber for moving said switch actuating member in said switch covered housing in a direction parallel to the operating shaft axis, and f. spring means interconnecting said movable contact holder and said switch actuating member for biasing said movable contact holder in a direction opposite to the direction of said axial motion of the shaft and actuating member and for biasing said switch actuating member and said movable contact holder against said walls abutting said switch actuating member and movable contact holder, whereby said movable contact holder and said switch actuating member move in opposite directions and whereby said switch contacts of said movable contact holder are urged against said fixed switch contacts in a position of said movable contact holder by said spring means, said spring means operatively interconnecting said actuating member and said movable contact holder being a U-shaped spring which is adapted to force said actuating member and said movable contact holder to move away from each other.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |