US3215402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jack
Assignee: HOTT
•
Filing: 1961-01-09
•
Granted: 1965-11-02
•
Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Ion V K Hott
- 👤 Ii Warren E Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:00
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/02; B66F7/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A JACK OF THE TYPE HAVING A MOVABLE LOAD LIFTING CARRIAGE DRIVEN ALONG A VERTICAL PATYH ON A JACK FRAME, THE COMBINATION COMPRISING: DRIVE MEANS SELECTIVE TO MOVE THE CARRIAGE UPWARDLY OR DOWNWARDLY ALONG THE VERTICAL PATH; SWITCH MEANS OPERABLE TO DEENERGIZE SAID DRIVE MEANS; CONTROL MEANS ENGAGEABLE WITH SAID SWITCH MEANS; ABUTMENT MEANS ON SAID CARRIAGE ADAPTED TO ACTUATE THE CONTROL MEANS DURING MOVEMENT OF TGHE CARRIAGE TO DEENERGIZE THE DRIVE MEANS AND THEREBY HALT CONTINUED MOVEMENT OF THE CARRIAGE; A SAFETY LOCK MECHANISM CARRIED BY SAID CARRIAGE INCLUDING A MOVABLE LOCKING BAR; MEANS INTERCONNECTING SAID LOCKING BAR AND SAID CONTROL MEANS WHEREBY SAID SWITCH IS OPERATED TO DEENERGIZE SAID DRIVE MEANS; AND MANUALLY ACTUABLE MEANS FOR RELEASING SAID LOCK MECHANISM.
Claim 2
Dependent Claim
123 words
IN A JACK OF THE TYPE HAVING A MOVABLE LOAD LIFTING CARRIAGE DRIVEN ALONG A VERTICAL PATYH ON A JACK FRAME, THE COMBINATION COMPRISING: DRIVE MEANS SELECTIVE TO MOVE THE CARRIAGE UPWARDLY OR DOWNWARDLY ALONG THE VERTICAL PATH; SWITCH MEANS OPERABLE TO DEENERGIZE SAID DRIVE MEANS; CONTROL MEANS ENGAGEABLE WITH SAID SWITCH MEANS; ABUTMENT MEANS ON SAID CARRIAGE ADAPTED TO ACTUATE THE CONTROL MEANS DURING MOVEMENT OF TGHE CARRIAGE TO DEENERGIZE THE DRIVE MEANS AND THEREBY HALT CONTINUED MOVEMENT OF THE CARRIAGE; A SAFETY LOCK MECHANISM CARRIED BY SAID CARRIAGE INCLUDING A MOVABLE LOCKING BAR; MEANS INTERCONNECTING SAID LOCKING BAR AND SAID CONTROL MEANS WHEREBY SAID SWITCH IS OPERATED TO DEENERGIZE SAID DRIVE MEANS; AND MANUALLY ACTUABLE MEANS FOR RELEASING SAID LOCK MECHANISM.
References Cited (Backward Citations)
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US1477790A
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US2479679A
Cited
US2550801A
Cited
US2792913A
Cited
US2742257A
Cited
US2928921A
Cited
US2975257A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |