US3722313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push button switch units
Assignee: Individual
•
Filing: 1971-05-10
•
Granted: 1973-03-27
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Expires: 1991-05-10
Abstract
Abstract A push button switch unit comprises a mounting chassis with push button switches, the chassis having a housing plate adjacent to the push button switches on the chassis plate. Flat locking slides are mounted between the chassis plate and the housing plate so as to be able to move side-ways for coordinating the operation of plungers of the switches. The unit includes for each switch a locking pin extending into a hole in the plunger of the respective switch, the hole being perpendicular to the axis of the plunger. An opening is provided in the chassis plate and a slot, corresponding in length to the stroke of the respective plunger, is provided in the switch unit housing plate. The locking pin is arranged to be inserted through the opening in the chassis plate and the slot in the housing plate. The unit further comprises a locking slide adapted to cooperate with the head of the locking pin.
Inventors
- 👤 R Schadow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/72; H01H13/74; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/20244
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
228 words
In a puSh button switch unit comprising a mounting chassis with means for carrying a plurality of push button switches; a plurality of push button switches, with each having a switch plunger; the chassis having a chassis plate and having a housing plate adjacent to the push button switches; locking slides being mounted between the chassis plate and the housing plate so as to be able to move sideways for coordinating the operation of plungers of the switches, the improvement comprising for each switch, a locking pin extending into a hole in the plunger of the respective switch, the hole extending transversely to the axis of the plunger, an opening in the chassis plate and a slot, corresponding in length to the stroke of the respective plunger, in the housing plate, the locking pin being arranged to be inserted through the opening in the chassis plate and the slot in the housing plate, each locking pin having a head, said locking slides being positioned so that at least one slide is contacted by and cooperates with the head of a locking pin when the respective switch plunger is operated; said slide having means to block movement of the respective said pin and of its said plunger when said slide is in one position and said slide being movable to a position where it does not block its pin.
Claim 2
Dependent Claim
228 words
In a puSh button switch unit comprising a mounting chassis with means for carrying a plurality of push button switches; a plurality of push button switches, with each having a switch plunger; the chassis having a chassis plate and having a housing plate adjacent to the push button switches; locking slides being mounted between the chassis plate and the housing plate so as to be able to move sideways for coordinating the operation of plungers of the switches, the improvement comprising for each switch, a locking pin extending into a hole in the plunger of the respective switch, the hole extending transversely to the axis of the plunger, an opening in the chassis plate and a slot, corresponding in length to the stroke of the respective plunger, in the housing plate, the locking pin being arranged to be inserted through the opening in the chassis plate and the slot in the housing plate, each locking pin having a head, said locking slides being positioned so that at least one slide is contacted by and cooperates with the head of a locking pin when the respective switch plunger is operated; said slide having means to block movement of the respective said pin and of its said plunger when said slide is in one position and said slide being movable to a position where it does not block its pin.
Claim 3
Dependent Claim
127 words
A push button switch unit in accordance with claim 1 comprising a flat detent slide between a front side of the housing and a front part of the chassis, detent projections on the detent slide are received by cooperating detent profiles of the switch plungers, each said detent projection fits into the space between two adjacently placed housing cover plates of the switch unit, the base part of each detent projection having a slot which is open towards the detent profile of the respective switch plunger and has a length exceeding the length of the detent slide stroke, the slot laterally including the housing cover plate, and a detent slide spring, which is provided between a detent slide and the chassis and laterally stresses the detent slide.
Claim 4
Dependent Claim
45 words
A push button switch unit in accordance with claim 1, in which the locking slides are normally so positioned that the locking pins and the associated push button plungers can be moved to a limited extent in the intermediate space between two adjacent locking slides.
Claim 5
Dependent Claim
33 words
A push button switch unit in accordance with claim 3, comprising a piece inserted between the chassis plate and heads of the locking pins for covering pin insertion holes in the chassis plate.
Claim 6
Dependent Claim
56 words
A push button switch unit in accordance with claim 3, in which the switch plungers can be removed by moving them forwards, an insertion opening in the chassis for the locking pin being offset to the rear in relation to the inactive position of the respective push button switch towards the push button of the switch.
Claim 7
Dependent Claim
37 words
A push button switch unit in accordance with claim 5, in which each switch housing cover plate is provided with an opening in the chassis plate aligned with the opening for the insertion of the respective pin.
Claim 8
Dependent Claim
82 words
A push button switch unit in accordance with claim 3, in which the locking slides each have a generally trapezoidal taper narrower toward the forward end of the chassis; the locking slides each have a breadth corresponding to the distance between locking pins and the taper of the locking slides makes possible complete insertion of one push button with its locking pin while a subsequently depressed push button can only be moved a fraction of the full push button switch operating stroke.
Claim 9
Dependent Claim
63 words
A push button switch unit in accordance with claim 7, in which the locking slides are flat and arranged in a row and have such a trapezoidal taper that one of the push buttons with its locking pin can be moved through the whole switch operating stroke and the other buttons are blocked by their respective locking pins contacting the shifted locking slides.
Claim 10
Dependent Claim
54 words
A push button switch unit in accordance with claim 7, in which a locking pin in an offset hole in the push button plunger enables only one push button slide to carry out the full switch operating stroke owing to the same locking slide shape being present, while a subsequent push button remains locked.
Claim 11
Dependent Claim
20 words
The push button switch unit of claim 3 wherein said locking pin extends perpendicularly to the axis of the plunger.
References Cited (Backward Citations)
US3281544A
Cited
US3416388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |