Patent US3816677A successfully refreshed from Google Patents.
US3816677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retail tool switch adaptor with key lock
Assignee: Delta International Machinery Corp
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Filing: 1973-06-01
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Granted: 1974-06-11
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Expires: 1993-06-01
Abstract
Abstract A safety cover for a toggle switch, comprising a cover mounted over the toggle handle and having mounted thereon a rockable actuator for operating the toggle and locking means for locking the actuator in the ''''off'''' position.
Inventors
- 👤 D Soltez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:21
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/28; H01H9/285; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/569; Y10T70/573; Y10T70/5735
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A safety cover for a toggle switch, comprising a cover adapted to be mounted over the toggle handle and having mounted thereon a rockable actuator with a large, easily contacted surface for contact by an operator, said rockable actuator positively engaging said toggle handle, and a locking means mounted on the safety cover for locking said actuator in a selected position.
Claim 2
Dependent Claim
61 words
A safety cover for a toggle switch, comprising a cover adapted to be mounted over the toggle handle and having mounted thereon a rockable actuator with a large, easily contacted surface for contact by an operator, said rockable actuator positively engaging said toggle handle, and a locking means mounted on the safety cover for locking said actuator in a selected position.
Claim 3
Dependent Claim
33 words
The safety cover of claim 1 wherein said locking means comprises a rotatable key-operated lever arm assembly engageable with a surface of said actuator when said toggle handle is in the off position.
Claim 4
Dependent Claim
23 words
The safety cover of claim 2, wherein said rotatable arm assembly includes detent means for yieldably retaining said assembly in a selected position.
Claim 5
Dependent Claim
33 words
The safety cover of claim 1 wherein said cover cooperates with the mounting surface to completely enclose said toggle handle, whereby said switch is operable only by the possessor of said locking means.
Claim 6
Dependent Claim
101 words
A power tool having a safety cover for a toggle switch, comprising a cover enclosing the toggle of the tool, said cover having mounted thereon a rockable actuator with a large, easily contacted surface for contact by an operator, said rockable actuator positively engaging said toggle handle, and which has a prominent surface that projects above said cover when the switch is in a first position, and which rocks to a position flush with said cover when the switch is moved to a second position, said cover having a locking means mounted thereon for locking said actuator in said second position.
Claim 7
Dependent Claim
101 words
A power tool having a safety cover for a toggle switch, comprising a cover enclosing the toggle of the tool, said cover having mounted thereon a rockable actuator with a large, easily contacted surface for contact by an operator, said rockable actuator positively engaging said toggle handle, and which has a prominent surface that projects above said cover when the switch is in a first position, and which rocks to a position flush with said cover when the switch is moved to a second position, said cover having a locking means mounted thereon for locking said actuator in said second position.
Claim 8
Dependent Claim
33 words
The power tool of claim 5 in which said locking means comprises a rotatable, key-operated lever arm assembly engageable with a surface of said actuator when said actuator is in said second position.
Claim 9
Dependent Claim
24 words
The power tool of claim 6 in which said lever arm assembly includes detent means for yieldably retaining said assembly in a selected position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |