US3356819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch operator and bracket
Assignee: Killark Electric Manufacturing Co
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Filing: 1966-05-04
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Granted: 1967-12-05
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Expires: 1986-05-04
Abstract
No abstract record available.
Inventors
- 👤 Marshall G Zavertnik
- 👤 John W Buser
- 👤 Charles E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:19
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A SWITCH OPERATOR AND BRACKET THEREFOR COMPRISING A SWITCH OPERATOR BODY HAVING EXTERNAL THREADS FOR EXTENDING THROUGH AND BEING THREADED WITHIN AN OPENING IN A WALL SEPARATING A HAZARDOUS AREA FROM A NON-HAZARDOUS AREA, A SHAFT EXTENDING THROUGH THE BODY AND ADAPTED TO MOVE THEREIN, AN OPERATING KNOB ON ONE END OF THE SHAFT, A GUARD SURROUNDING THE KNOB AND THREADED ONTO THE BODY, A SWITCH OPERATING CARRIAGE ON THE OTHER END OF THE SHAFT, A SWITCH SUPPORTING BRACKET ATTACHED TO THE AFORESAID OTHER END OF THE BODY AND COMPRISING SPACED ARMS AND OPPOSING FLANGES, THE FLANGES BEING ADAPTED TO HAVE A SWITCH MOUNTING PLATE PLACED AGAINST IT AND FASTENED TO IT BY SCREWS, THE FLANGES HAVING ROWS OF HOLES IN THEM SPACED TO SELECTIVELY ALIGN WITH HOLES IN THE SWITCH MOUNTING BRACKET WITH SCREWS EXTENDING THROUGH THE ALIGNED HOLES, THE CARRIAGE COMPRISING A PAIR OF SPACED ARMS FOR ENGAGING OPPOSITE SIDES OF A SWITCH TOGGLE TO OPERATE THE TOGGLE IN OPPOSITE DIRECTIONS UPON ROTATION OF THE KNOB AND SHAFT, THE ARMS HAVING OPPOSING FLANGES PERPENDICULAR TO THE DIRECTION OF MOVEMENT OF THE CARRIAGE WITH ROTATION OF THE KNOB, AND A SPRING BIASED BALL MOUNTED IN THE BODY AND BIASED AGAINST THE KNOB TO PROVIDE FRICTIONAL RESISTANCE TO ROTATION OF THE KNOB.
Claim 2
Dependent Claim
212 words
A SWITCH OPERATOR AND BRACKET THEREFOR COMPRISING A SWITCH OPERATOR BODY HAVING EXTERNAL THREADS FOR EXTENDING THROUGH AND BEING THREADED WITHIN AN OPENING IN A WALL SEPARATING A HAZARDOUS AREA FROM A NON-HAZARDOUS AREA, A SHAFT EXTENDING THROUGH THE BODY AND ADAPTED TO MOVE THEREIN, AN OPERATING KNOB ON ONE END OF THE SHAFT, A GUARD SURROUNDING THE KNOB AND THREADED ONTO THE BODY, A SWITCH OPERATING CARRIAGE ON THE OTHER END OF THE SHAFT, A SWITCH SUPPORTING BRACKET ATTACHED TO THE AFORESAID OTHER END OF THE BODY AND COMPRISING SPACED ARMS AND OPPOSING FLANGES, THE FLANGES BEING ADAPTED TO HAVE A SWITCH MOUNTING PLATE PLACED AGAINST IT AND FASTENED TO IT BY SCREWS, THE FLANGES HAVING ROWS OF HOLES IN THEM SPACED TO SELECTIVELY ALIGN WITH HOLES IN THE SWITCH MOUNTING BRACKET WITH SCREWS EXTENDING THROUGH THE ALIGNED HOLES, THE CARRIAGE COMPRISING A PAIR OF SPACED ARMS FOR ENGAGING OPPOSITE SIDES OF A SWITCH TOGGLE TO OPERATE THE TOGGLE IN OPPOSITE DIRECTIONS UPON ROTATION OF THE KNOB AND SHAFT, THE ARMS HAVING OPPOSING FLANGES PERPENDICULAR TO THE DIRECTION OF MOVEMENT OF THE CARRIAGE WITH ROTATION OF THE KNOB, AND A SPRING BIASED BALL MOUNTED IN THE BODY AND BIASED AGAINST THE KNOB TO PROVIDE FRICTIONAL RESISTANCE TO ROTATION OF THE KNOB.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |