US3354789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Doosan Bobcat North America Inc
•
Filing: 1965-12-29
•
Granted: 1967-11-28
•
Expires: 1985-12-29
Abstract
No abstract record available.
Inventors
- 👤 Frank J Schenkelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:11
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/20; B66F9/22; Y; Y10; Y10S; Y10S60/00; Y10S60/911; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87048; Y10T74/00; Y10T74/20; Y10T74/20207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
FOR USE WITH A VALVE AND A SWITCH, A CONTROL COMPRISING A ROTATABLE SHAFT OPERATIVELY CONNECTED TO THE VALVE SO THAT ROTATION OF THE SAID SHAFT ACTUATES THE VALVE, A MANUALLY OPERABLE MEMBER MOUNTED ON THE SAID SHAFT FOR ROTATION, MEANS CARRIED BY THE SAID MEMBER FOR ACTUATING THE SWITCH UPON INITIAL ROTATION OF THE SAID MEMBER, AND MEANS FOR CONNECTING THE SAID MEMBER AND SHAFT TOGETHER FOR CONJOINT ROTATION FOLLOWING INITIAL ROTATION OF THE SAID MEMBERS.
Claim 2
Dependent Claim
77 words
FOR USE WITH A VALVE AND A SWITCH, A CONTROL COMPRISING A ROTATABLE SHAFT OPERATIVELY CONNECTED TO THE VALVE SO THAT ROTATION OF THE SAID SHAFT ACTUATES THE VALVE, A MANUALLY OPERABLE MEMBER MOUNTED ON THE SAID SHAFT FOR ROTATION, MEANS CARRIED BY THE SAID MEMBER FOR ACTUATING THE SWITCH UPON INITIAL ROTATION OF THE SAID MEMBER, AND MEANS FOR CONNECTING THE SAID MEMBER AND SHAFT TOGETHER FOR CONJOINT ROTATION FOLLOWING INITIAL ROTATION OF THE SAID MEMBERS.
References Cited (Backward Citations)
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Cited
US2836987A
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |