US3853084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dock and wharf fenders
Assignee: Individual
•
Filing: 1973-05-25
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Granted: 1974-12-10
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Expires: 1993-05-25
Abstract
Abstract The present invention relates to dock and wharf fenders comprising scissor-like moving pairs of lever members which are connected, at a common point, hingedly to a wale, the opposite ends of each pair being connected in spaced relationship to one another to a longitudinal member which is adapted to be fixedly attached to the dock wall, these spaced ends of the pair of levers being slidingly connected with the longitudinal member and acting against rubber buffers provided within or on the longitudinal member.
Inventors
- 👤 M Kedar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:36
CPC Classifications
B; B63; B63C; B63C1/00; B63C1/10; E; E02; E02B; E02B3/00; E02B3/20; E02B3/26; Y; Y02; Y02A; Y02A30/00; Y02A30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
339 words
Dock wharf fenders, comprising a first rigid longitudinal member arranged to be affixed to and to extend along a dock or wharf wall, a pair of elongated slots formed in said first member with each of said slots located adjacent an opposite one of the ends of said first member and extending in the longitudinal direction of said first member, a second rigid longitudinal member disposed in generally parallel relation with said first member and being spaced laterally from said first member so that it is located outwardly from the dock or wharf wall, a pair of elongated slots formed in said second member with each of said slots located adjacent an opposite one of the ends of said second member and extending in the longitudinal direction of said second member, a pin associated with each of said slots in said first and second members with each said pin being freely movable through its associated said slot in the direction of said slot and with the axis of said pin extending transversely to the longitudinal axis of said member in which said slot is located, a first lever and a second lever arranged in separated and crossing relationship, said first and second levers each extending between said first and second members and each being connected to a different one of said pins in said first and second members, said first and second levers crossing at a location intermediate their ends, a rubber buffer located at each of the ends of said first and second levers, each said rubber buffer being positioned along a portion of the path of said slot located at the end of said lever with which said buffer is associated so that a force transmitted against said second member in the direction normal to the longitudinal direction of said second member is transmitted over said first and second levers to said first member and is absorbed as said pins in said slots in said first and second members are forced against said rubber buffers associated therewith.
Claim 2
Dependent Claim
339 words
Dock wharf fenders, comprising a first rigid longitudinal member arranged to be affixed to and to extend along a dock or wharf wall, a pair of elongated slots formed in said first member with each of said slots located adjacent an opposite one of the ends of said first member and extending in the longitudinal direction of said first member, a second rigid longitudinal member disposed in generally parallel relation with said first member and being spaced laterally from said first member so that it is located outwardly from the dock or wharf wall, a pair of elongated slots formed in said second member with each of said slots located adjacent an opposite one of the ends of said second member and extending in the longitudinal direction of said second member, a pin associated with each of said slots in said first and second members with each said pin being freely movable through its associated said slot in the direction of said slot and with the axis of said pin extending transversely to the longitudinal axis of said member in which said slot is located, a first lever and a second lever arranged in separated and crossing relationship, said first and second levers each extending between said first and second members and each being connected to a different one of said pins in said first and second members, said first and second levers crossing at a location intermediate their ends, a rubber buffer located at each of the ends of said first and second levers, each said rubber buffer being positioned along a portion of the path of said slot located at the end of said lever with which said buffer is associated so that a force transmitted against said second member in the direction normal to the longitudinal direction of said second member is transmitted over said first and second levers to said first member and is absorbed as said pins in said slots in said first and second members are forced against said rubber buffers associated therewith.
Claim 3
Dependent Claim
39 words
Dock and wharf fenders, as set forth in claim 1, wherein said first and second members extend horizontally, said pins in said slots extend vertically and said first and second levers cross at approximately the mid-point between their Ends.
Claim 4
Dependent Claim
35 words
Dock and wharf fenders, as set forth in claim 1, wherein a wale is attached to and extends in parallel relation with said second member on the side thereof facing away from said first member.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |