Patent US5047598A successfully refreshed from Google Patents.
US5047598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety rocker with improved actuator mounting
Assignee: McGill Manufacturing Co Inc
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Filing: 1989-09-01
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Granted: 1991-09-10
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Expires: 2009-09-01
Abstract
Abstract An electrical switch includes a rocker-type actuator adapted to be pivoted between first and second positions within a housing in order to close and open switch contacts. The actuator slidably supports a latch which normally engages the housing to prevent the actuator from being pivoted to its switch-closed position. By pulling on the latch and then lifting on the actuator, the actuator may be pivoted to its switch-closed position; the two-step operation protecting against accidental actuation of the switch. The actuator may be returned to its switch-open position by a simple single motion thereby enabling rapid opening of the switch under emergency conditions. A high strength rivet supports the actuator for pivoting within the housing and also supports the latch to pivot with and to slide relative to the actuator.
Inventors
- 👤 Thomas F. Osika
- 👤 John A. Stuhlmacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:30
CPC Classifications
H; H01; H01H; H01H27/00; H01H3/00; H01H3/02; H01H3/20; H01H23/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
212 words
A safety switch comprising a hollow body having a pair of laterally spaced sides and having a switch contact, a switch actuator, means mounting said switch actuator within said body and between said sides for pivoting said actuator relative to said body between first and second switch contact positions, said means comprising aligned holes formed through said actuator and the sides of said body and further comprising a rivet extending through said holes, a latch having a pair of laterally spaced ears straddling said actuator and located within said body adjacent the sides thereof, elongated slots formed through said ears, said slots receiving said rivet and coacting with said rivet to mount said latch for pivotal movement with said actuator between said first and second positions and also to mount said latch for sliding movement relative to said actuator between latched and unlatched positions, said latch positively engaging said body when said latch is in said latched position and said actuator is in said first position and acting to prevent movement of said actuator to said second position, said latch releasing said body when said latch is moved to said unlatched position thereby to enable movement of said actuator to said second position, and means biasing said latch toward said latched position.
Claim 2
Dependent Claim
212 words
A safety switch comprising a hollow body having a pair of laterally spaced sides and having a switch contact, a switch actuator, means mounting said switch actuator within said body and between said sides for pivoting said actuator relative to said body between first and second switch contact positions, said means comprising aligned holes formed through said actuator and the sides of said body and further comprising a rivet extending through said holes, a latch having a pair of laterally spaced ears straddling said actuator and located within said body adjacent the sides thereof, elongated slots formed through said ears, said slots receiving said rivet and coacting with said rivet to mount said latch for pivotal movement with said actuator between said first and second positions and also to mount said latch for sliding movement relative to said actuator between latched and unlatched positions, said latch positively engaging said body when said latch is in said latched position and said actuator is in said first position and acting to prevent movement of said actuator to said second position, said latch releasing said body when said latch is moved to said unlatched position thereby to enable movement of said actuator to said second position, and means biasing said latch toward said latched position.
Claim 3
Dependent Claim
90 words
A safety switch as defined in claim 1 further including first and second spaced electrical contacts within said body, a fulcrum located in said body between said electrical contacts, said switch contact being pivoted in one direction about said fulcrum and engaging said first electrical contact when said actuator is in said first position, and said switch contact sliding across said fulcrum and pivoting in the other direction about said fulcrum to engage said second electrical contact when said actuator is pivoted from said first position to said second position.
Claim 4
Dependent Claim
31 words
A safety switch as defined in claim 2 further including a socket formed in said switch contact, said actuator including a spring-loaded plunger biased into said socket and pivotally received therein.
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) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |