Patent US2683134A successfully refreshed from Google Patents.
US4102129A
Expired / Lapsed
US
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Control apparatus
Assignee: Caterpillar Inc
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Filing: 1977-07-01
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Granted: 1978-07-25
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Expires: 1997-07-01
Abstract
Abstract Control apparatus is provided for an apparatus which has first and second mechanisms. The control apparatus automatically, controllably energizes the second mechanism in response to a preselected condition of the first mechanism and selectively, controllably energizes the second mechanism independently of the condition of the first mechanism.
Inventors
- 👤 Richard J. Maes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/30; B62D5/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
Control apparatus for an apparatus having first and second mechanisms, comprising: first means for automatically, controllably energizing said second mechanism in response to a preselected condition of said first mechanism; and second means for selectively, controllably energizing said second mechanism independently of said first means and independently of the condition of said first mechanism and for controllably energizing said second mechanism in response to the preselected condition of said first mechanism.
Claim 2
Dependent Claim
71 words
Control apparatus for an apparatus having first and second mechanisms, comprising: first means for automatically, controllably energizing said second mechanism in response to a preselected condition of said first mechanism; and second means for selectively, controllably energizing said second mechanism independently of said first means and independently of the condition of said first mechanism and for controllably energizing said second mechanism in response to the preselected condition of said first mechanism.
Claim 3
Dependent Claim
31 words
An apparatus, as set forth in claim 1, wherein said second means includes means for connecting a power source to said second mechanism and said first means and maintaining said connection.
Claim 4
Dependent Claim
53 words
An apparatus, as set forth in claim 2, wherein said connecting means includes a switch having a contactor, said contactor being movable between a first position at which said power source is only connected to said first means and a second position at which said power source is connected to said second mechanism.
Claim 5
Dependent Claim
29 words
An apparatus, as set forth in claim 3, wherein said power source is connected to said first means, while said contactor is moving between the first and second positions.
Claim 6
Dependent Claim
31 words
An apparatus, as set forth in claim 2, including means for testing said first and second means, said testing means including an indicating lamp connected to said second mechanism in parallel.
Claim 7
Dependent Claim
45 words
An apparatus, as set forth in claim 5, wherein said testing means includes a test switch connected to said first means and movable between an open position at which the indicating lamp is de-energized and a closed position at which said indicating lamp is energized.
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) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |