US4309683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric control device
Assignee: Westinghouse Electric Corp
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Filing: 1980-05-05
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Granted: 1982-01-05
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Expires: 2000-05-05
Abstract
Abstract This invention provides a novel and unique electric control device which utilizes a new auxiliary contact device. This new auxiliary contact device has a contact-carrying structure that is directly engaged with the operating mechanism of the electric control device whereby the operating mechanism directly moves the auxiliary contact device to all operating positions eliminating any requirement for biasing the auxiliary contacts into any normal position.
Inventors
- 👤 Kurt A. Grunert
- 👤 John J. Dauer, Jr.
- 👤 Birch L. DeVault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:30
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/541; H01H50/545
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
275 words
An electric control device, comprising: (a) a base; (b) a first insulating housing mounted on the base; (c) a control mechanism supported on the housing; (d) the control mechanism comprising a first stationary and movable contact combination; (e) the first stationary and movable contact combination being disposed to open and close an electric circuit; (f) operating means disposed to open and close the first stationary and movable contact combination between the opened and closed operating positions; (g) the operating means comprising a coil and armature combination; (h) the operating means further comprising a first insulating contact-carrying structure mounted generally upon the armature; (i) the first stationary contact is generally mounted upon the first insulating housing; (j) the first movable contact is generally mounted upon the first insulating contact-carrying structure whereby upon energization of the coil, the armature is disposed to move the first insulating contact-carrying structure to carry the first movable contact into engagement with the first stationary contact to open and close an electric circuit; and (h) an auxiliary contact device comprising a second insulating housing mounted generally upon the first insulating housing; a second stationary contact and movable contact combination being disposed generally within the second insulating housing; a second insulating contact-carrying structure whereby the second movable contact is generally mounted thereon; the second insulating contact-carrying structure is disposed to carry the second movable contact into engagement with the second stationary contact to open and close an electric circuit; and connecting means for connecting the first insulating contact-carrying structure to the second insulating contact-carrying structure whereby operating motion of the first insulating contact-carrying structure causes operating motion of the second insulating contact-carrying structure.
Claim 2
Dependent Claim
275 words
An electric control device, comprising: (a) a base; (b) a first insulating housing mounted on the base; (c) a control mechanism supported on the housing; (d) the control mechanism comprising a first stationary and movable contact combination; (e) the first stationary and movable contact combination being disposed to open and close an electric circuit; (f) operating means disposed to open and close the first stationary and movable contact combination between the opened and closed operating positions; (g) the operating means comprising a coil and armature combination; (h) the operating means further comprising a first insulating contact-carrying structure mounted generally upon the armature; (i) the first stationary contact is generally mounted upon the first insulating housing; (j) the first movable contact is generally mounted upon the first insulating contact-carrying structure whereby upon energization of the coil, the armature is disposed to move the first insulating contact-carrying structure to carry the first movable contact into engagement with the first stationary contact to open and close an electric circuit; and (h) an auxiliary contact device comprising a second insulating housing mounted generally upon the first insulating housing; a second stationary contact and movable contact combination being disposed generally within the second insulating housing; a second insulating contact-carrying structure whereby the second movable contact is generally mounted thereon; the second insulating contact-carrying structure is disposed to carry the second movable contact into engagement with the second stationary contact to open and close an electric circuit; and connecting means for connecting the first insulating contact-carrying structure to the second insulating contact-carrying structure whereby operating motion of the first insulating contact-carrying structure causes operating motion of the second insulating contact-carrying structure.
Claim 3
Dependent Claim
41 words
An electric control device as recited in claim 1 whereby the connecting means comprises the first insulating contact-carrying structure having slot-like means therein and the second insulating contact carrying structure having a projection disposed to extend generally within said slot-like means.
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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |