US3811155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rope grab assembly
Assignee: Individual
•
Filing: 1972-06-21
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Granted: 1974-05-21
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Expires: 1992-06-21
Abstract
Abstract The disclosure relates to a line or cable gripping device of the releasable type used to support a load at a desired point along the line and includes first and second bracket plate members that are U-shaped in cross-section; the second bracket member has dimensions such that it can be slidably positioned within the first bracket member; the bracket members are each formed with pairs of alignable slots for receiving a key member; the slots of the second smaller, bracket member are elongated relative to the slots of the first larger, bracket members so that, when the key member occupies the slots of the bracket members, the direction of sliding motion of one bracket number relative to the other is defined by the position of the slots of the smaller bracket member and the surface of the key member. A lever is pivotably mounted in the second bracket member and spring means are provided for biasing the lever into engagement with the key member whereby the connecting portions of the two U-shaped bracket members will be maintained in a line gripping position relative to one another.
Inventors
- 👤 L Stafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:08
CPC Classifications
A; A62; A62B; A62B1/00; A62B1/06; A62B1/14; A62B35/00; A62B35/04; B; B66; B66B; B66B5/00; B66B5/02; B66B5/16; B66B5/18; B66B5/24; F; F16; F16G; F16G11/00; F16G11/10; F16G11/101; F16G11/105; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3984; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7062; Y10T403/7064; Y10T403/7066; Y10T403/7071
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
289 words
A grip device for mounting on a line, comprising: a first bracket including a pair of parallel side plates spaced apart a distance sufficient to receive a line therebetween, said side plates each having one edge rigidly joined together by a connecting portion having an interior surface, a second bracket including a pair of parallel side plates spaced apart a distance to permit said second bracket to slidably fit between said side plates of said first bracket, said side plates of said second bracket each having one edge rigidly joined together by a connecting portion, said connecting portion of said second bracket having an exterior surface defining a clamping edge positioned to face said interior surface of said connecting portion of said first bracket when said second bracket is disposed between said plates of said first bracket, said parallel side plates of said second bracket each having an elongated slot therein extending away from said clamping edge at an acute angle, said slots being aligned with each other, said first bracket having key receiving means in its said side plates, key means positionable in said key receiving means and said slots in said plates of said second bracket, a lever pivotably mounted at a point intermediate its ends between said side plates of said second bracket, said second bracket having spring means connected to one end of said lever to constantly urge a portion of said lever between said point and said one end of said lever into engagement with said key means positioned in said key receiving means so that said second bracket will slide on said key means and move said clamping edge toward said interior surface of said first bracket to grip a line disposed therebetween.
Claim 2
Dependent Claim
289 words
A grip device for mounting on a line, comprising: a first bracket including a pair of parallel side plates spaced apart a distance sufficient to receive a line therebetween, said side plates each having one edge rigidly joined together by a connecting portion having an interior surface, a second bracket including a pair of parallel side plates spaced apart a distance to permit said second bracket to slidably fit between said side plates of said first bracket, said side plates of said second bracket each having one edge rigidly joined together by a connecting portion, said connecting portion of said second bracket having an exterior surface defining a clamping edge positioned to face said interior surface of said connecting portion of said first bracket when said second bracket is disposed between said plates of said first bracket, said parallel side plates of said second bracket each having an elongated slot therein extending away from said clamping edge at an acute angle, said slots being aligned with each other, said first bracket having key receiving means in its said side plates, key means positionable in said key receiving means and said slots in said plates of said second bracket, a lever pivotably mounted at a point intermediate its ends between said side plates of said second bracket, said second bracket having spring means connected to one end of said lever to constantly urge a portion of said lever between said point and said one end of said lever into engagement with said key means positioned in said key receiving means so that said second bracket will slide on said key means and move said clamping edge toward said interior surface of said first bracket to grip a line disposed therebetween.
Claim 3
Dependent Claim
20 words
The device as claimed in claim 1 wherein said clamping edge of said second bracket is concave along its length.
Claim 4
Dependent Claim
41 words
The device as claimed in claim 1 wherein said key receiving means in said side plates of said first bracket comprise a pair of aligned slots which extend away from said interior surface of said first bracket at an acute angle.
Claim 5
Dependent Claim
30 words
The device as claimed in claim 3 wherein said key means comprises a plate member shaped to closely interfit with said slots in said side plates of said first bracket.
Claim 6
Dependent Claim
64 words
The device as claimed in claim 4 wherein said slots formed in said side plates of said second bracket are formed with substantially the same width as said slots in saId side plates of said first bracket while the length of said slots in said side plates of said second bracket are longer than the slots in said side plates of said first bracket.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |