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Patent US4013267A successfully refreshed from Google Patents.
US4013267A
Expired / Lapsed
US
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Pendulum jack
Assignee: Individual
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Filing: 1976-06-01
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Granted: 1977-03-22
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Expires: 1996-06-01
Abstract
Abstract An automobile jack having a pivotal center post mounted in a swivel base and a pair of opposed legs which enables the user to move the car after it has been raised by the jack. The legs are caused to translate together in opposing directions by means of a crank and gear mechanism to cause the post leg while the car is raised to pivot and thereby shift the car in the desired direction for balancing purposes in order to secure the car in its raised position.
Inventors
- 👤 Norman W. Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:08
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; B66F13/00; Y; Y10; Y10S; Y10S254/00; Y10S254/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A pendulum jack comprising a central post, a swivel base, said post being pivotally mounted in said base, a screw lift disposed in said post, a chain hook secured to said lift, a pair of gears mounted on a common shaft on opposite sides of said post, a pair of legs having rack teeth engaging said gears, respectively, and adapted to be moved oppositely in translation in a direction depending on the selected angle of pivot for said post.
Claim 2
Dependent Claim
79 words
A pendulum jack comprising a central post, a swivel base, said post being pivotally mounted in said base, a screw lift disposed in said post, a chain hook secured to said lift, a pair of gears mounted on a common shaft on opposite sides of said post, a pair of legs having rack teeth engaging said gears, respectively, and adapted to be moved oppositely in translation in a direction depending on the selected angle of pivot for said post.
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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |