Patent US3698230A successfully refreshed from Google Patents.
US3698230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulling post base
Assignee: Individual
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Filing: 1971-06-28
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Granted: 1972-10-17
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Expires: 1991-06-28
Abstract
Abstract For use with a pulling post of the type used for applying tension via a chain to a damaged automobile, a base having retractable rollers is formed of two V-shape sections pivoted together at their apexes. One of the sections has a post socket. The sections are spring biased to pivot relative to one another and normally form an angle. When tension is applied via the chain, the base sections pivot contra to the spring bias and flatten out against the floor. Thus, all slack is removed from the chain before strong pulling force is applied.
Inventors
- 👤 Ervin Buske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:59
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/14; Y; Y10; Y10S; Y10S72/00; Y10S72/705
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
149 words
A base for a pulling post, comprising, a first pair of arms having a connection at one end and having free ends extending generally in one direction, a second pair of arms having a connection at one end and having free ends extending generally in the opposite direction, said arms being adapted to rest upon a floor, means for supporting a pulling post on one of the pairs of arms, horizontal pivot means connecting the connection between the respective pairs of arms, and spring means for biasing said pairs of arms to pivot about said pivot means whereby, when said arms are disposed on a floor, the connected ends thereof tend to rise above the floor, and when a horizontal pull is applied in one direction to the post, said pairs of arms rotate about said horizontal pivot means contra to the bias and flatten out against the floor.
Claim 2
Dependent Claim
149 words
A base for a pulling post, comprising, a first pair of arms having a connection at one end and having free ends extending generally in one direction, a second pair of arms having a connection at one end and having free ends extending generally in the opposite direction, said arms being adapted to rest upon a floor, means for supporting a pulling post on one of the pairs of arms, horizontal pivot means connecting the connection between the respective pairs of arms, and spring means for biasing said pairs of arms to pivot about said pivot means whereby, when said arms are disposed on a floor, the connected ends thereof tend to rise above the floor, and when a horizontal pull is applied in one direction to the post, said pairs of arms rotate about said horizontal pivot means contra to the bias and flatten out against the floor.
Claim 3
Dependent Claim
14 words
The combination claimed in claim 1, and retractable casters on said pairs of arms.
Claim 4
Dependent Claim
25 words
The combination claimed in claim 2, the arms in each pair being in V-configuration and the connections therebetween being at the apexes of the V''s.
Claim 5
Dependent Claim
18 words
The combinationed claimed in claim 2, the retractable casters being disposed between the free ends of the arms.
Claim 6
Dependent Claim
42 words
The combination claimed in claim 4, said casters being retractable from an extended position in which they support the free ends of the arms on the floor to a retracted position in which the casters are supported entirely free of the floor.
Claim 7
Dependent Claim
16 words
The combination claimed in claim 3, and telescopic extensions for the free ends of the arms.
Claim 8
Dependent Claim
144 words
A base for a pulling post, comprising a first pair of arms disposed in V-configuration rigidly connected at the apex of the V, a second pair of arms disposed in V-configuration rigidly connected at the apex of the V, said pairs of arms being adapted to be disposed on a floor with the free ends of the arms in one pair extending oppositely from the free ends of the arms of the other pair, and with the apexes of the V''s disposed adjacent one another, an upwardly open post socket rigidly affixed on one pair of arms adjacent the apex thereof, a horizontal pivot connecting the pairs of arms at the apexes thereof, and spring means engaged between the pairs of arms for biasing the pairs of arms to pivot in a direction tending to cause the apexes thereof to rise above the floor.
Claim 9
Dependent Claim
144 words
A base for a pulling post, comprising a first pair of arms disposed in V-configuration rigidly connected at the apex of the V, a second pair of arms disposed in V-configuration rigidly connected at the apex of the V, said pairs of arms being adapted to be disposed on a floor with the free ends of the arms in one pair extending oppositely from the free ends of the arms of the other pair, and with the apexes of the V''s disposed adjacent one another, an upwardly open post socket rigidly affixed on one pair of arms adjacent the apex thereof, a horizontal pivot connecting the pairs of arms at the apexes thereof, and spring means engaged between the pairs of arms for biasing the pairs of arms to pivot in a direction tending to cause the apexes thereof to rise above the floor.
Claim 10
Dependent Claim
16 words
The combination claimed in claim 7, and means for limiting the spring-biased movement of the arms.
Claim 11
Dependent Claim
18 words
The combination claimed in claim 7, and retractable caster means for supporting the free ends of the arms.
Claim 12
Dependent Claim
75 words
The combination claimed in claim 9, said retractable caster means comprising a plate disposed across the free ends of the arms, casters on one side of the plate, and pivots connecting the ends of the plate with the free ends of an arm pair, whereby the casters can be swung between a downwardly extended position in which they engage the floor and an upwardly extended position in which they are entirely free of the floor.
Claim 13
Dependent Claim
16 words
The combination claimed in claim 10, and telescopic extensions for the free ends of the arms.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |