US3896582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge construction set
Assignee: Lawrence Peska Associates Inc
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Filing: 1974-07-18
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Granted: 1975-07-29
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Expires: 1994-07-18
Abstract
Abstract Described is a bridge construction set or kit for erecting toy suspension bridges and including a base on each end of which are mounted abutments receiving the ends of a roadway and of bridge cables. Towers over which pass the cables are mounted on the base. Link wires are also provided for suspending the roadway to the bridge cables. By changing the number, appearance and size of the component parts, models of various well-known bridges can be erected.
Inventors
- 👤 Richard J Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/044
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A kit for constructing toy bridges, comprising a base member having spaced openings therein; at least one roadway element for spanning said base; abutment means adapted for juxtaposition with each end of said base; a plurality of vertical towers fitting in said openings in said base member and intermediate said abutments; a plurality of shaped bridge cables adapted to be stretched between said abutments and to be supported by said towers; and a plurality of vertical wires depending from said cables for holding said roadway in spaced relation with respect to said base member, said kit making possible the erection of models of various bridges when the number, appearance and size of the aforesaid components are changed.
Claim 2
Dependent Claim
117 words
A kit for constructing toy bridges, comprising a base member having spaced openings therein; at least one roadway element for spanning said base; abutment means adapted for juxtaposition with each end of said base; a plurality of vertical towers fitting in said openings in said base member and intermediate said abutments; a plurality of shaped bridge cables adapted to be stretched between said abutments and to be supported by said towers; and a plurality of vertical wires depending from said cables for holding said roadway in spaced relation with respect to said base member, said kit making possible the erection of models of various bridges when the number, appearance and size of the aforesaid components are changed.
Claim 3
Dependent Claim
37 words
The kit of claim 1, wherein said base member is generally rectangular and has a flat central cavity intermediate the end portions thereof, and undulated upper portions simulating the natural contour of the approaches to a bridge.
Claim 4
Dependent Claim
57 words
The kit of claim 1, wherein said towers include a pair of vertical membErs and a connecting member secured to the upper end thereof; said member having projecting end portions extending above and abutting the upper ends of said vertical members; said end portions having in the upper end thereof a rounded opening receiving said bridge cables.
Claim 5
Dependent Claim
34 words
The kit of claim 1, further including a plurality of links adapted to be threaded on said cables and having the upper end of said wires secured to the lower end of said links.
References Cited (Backward Citations)
US249448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |