US3922972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley device
Assignee: Individual
•
Filing: 1974-08-26
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Granted: 1975-12-02
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Expires: 1994-08-26
Abstract
Abstract A trolley for an animal leash or message carrier rides on a trolley wire which is suspended by guy wires that may form angle points to place the trolley wire in a polygonal pattern. In order to pass the angle points freely, the trolley is suspended by pulley means which provide one point support, and is retained on the trolley wire by cooperating lower pulley means. Disengagement of the pulleys from the trolley wire is prevented by intermeshing gear arrangements in three different embodiments. One embodiment is capable of passing vertical guy wires or lateral guy wires extending from opposite sides of the trolley wire.
Inventors
- 👤 Norman E Junes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:33
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/04; B; B61; B61B; B61B12/00; B61B12/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
148 words
A trolley for use on an overhead trolley wire comprising a body member, roller means on said body member providing essentially one point support for said body member on said trolley wire so that the trolley will pass angle points in the trolley wire where the trolley wire changes direction, gear teeth on said roller means having spaces between said teeth to receive supporting guy wires for said trolley wire at said angle points so that said trolley will pass said guy wires, said roller means having a pulley groove to roll on top of said trolley wire, a retainer roller on said body member arranged to underlie said trolley wire in vertical alignment with said top roller means in order to pass said angle points in said trolley wire, and gear teeth on said retainer roller in mesh with said gear teeth on said top roller means.
Claim 2
Dependent Claim
148 words
A trolley for use on an overhead trolley wire comprising a body member, roller means on said body member providing essentially one point support for said body member on said trolley wire so that the trolley will pass angle points in the trolley wire where the trolley wire changes direction, gear teeth on said roller means having spaces between said teeth to receive supporting guy wires for said trolley wire at said angle points so that said trolley will pass said guy wires, said roller means having a pulley groove to roll on top of said trolley wire, a retainer roller on said body member arranged to underlie said trolley wire in vertical alignment with said top roller means in order to pass said angle points in said trolley wire, and gear teeth on said retainer roller in mesh with said gear teeth on said top roller means.
Claim 3
Dependent Claim
35 words
A trolley as defined in claim 1 the axes of said top roller means and said retainer roller being divergent in a common vertical plane to increase the tooth clearance for passing said guy wires.
Claim 4
Dependent Claim
147 words
A trolley for use on an overhead trolley wire comprising a body member, roller means on said body member providing essentially one point support for said body member on said trolley wire so that the trolley will pass angle points in the trolley wire where the trolley wire changes direction, gear teeth on said roller means having spaces between said teeth to receive supporting guy wires for said trolley wires at said angle points so that said trolley will pass said guy wires, said roller means having a pulley groove to roll on top of said trolley wire, and a retainer roller on said body member arranged to underlie said trolley wire in vertical alignment with said top roller means in order to pass said angle points in the trolley wire, said retainer roller comprising a disk rolling in said pulley groove of said top roller means.
Claim 5
Dependent Claim
147 words
A trolley for use on an overhead trolley wire comprising a body member, roller means on said body member providing essentially one point support for said body member on said trolley wire so that the trolley will pass angle points in the trolley wire where the trolley wire changes direction, gear teeth on said roller means having spaces between said teeth to receive supporting guy wires for said trolley wires at said angle points so that said trolley will pass said guy wires, said roller means having a pulley groove to roll on top of said trolley wire, and a retainer roller on said body member arranged to underlie said trolley wire in vertical alignment with said top roller means in order to pass said angle points in the trolley wire, said retainer roller comprising a disk rolling in said pulley groove of said top roller means.
Claim 6
Dependent Claim
145 words
A trolley for use on an overhead trolley wire comprising a body member, roller means on said body member providing essentially one point support for said body member on said trolley wire so that the trolley will pass angle points in the trolley wire where the trolley wire changes direction, gear teeth on said roller means having spaces between said teeth to receive supporting guy wires for said trolley wire at said angle points so that said trolley will pass said guy wires, said roller means comprising a pair of bevel gears rotatable on inclined axes in a common vertical plane transverse to said trolley wire, the teeth of said gears meshing together above the trolley wire and rolling on said trolley wire, and spaces between said teeth providing clearance to pass guy wires extending upwardly or laterally on either side of said trolley wire.
Claim 7
Dependent Claim
145 words
A trolley for use on an overhead trolley wire comprising a body member, roller means on said body member providing essentially one point support for said body member on said trolley wire so that the trolley will pass angle points in the trolley wire where the trolley wire changes direction, gear teeth on said roller means having spaces between said teeth to receive supporting guy wires for said trolley wire at said angle points so that said trolley will pass said guy wires, said roller means comprising a pair of bevel gears rotatable on inclined axes in a common vertical plane transverse to said trolley wire, the teeth of said gears meshing together above the trolley wire and rolling on said trolley wire, and spaces between said teeth providing clearance to pass guy wires extending upwardly or laterally on either side of said trolley wire.
Claim 8
Dependent Claim
21 words
A trolley as defined in claim 4 including retainer roller means on said body member arranged to underlie said trolley wire.
Claim 9
Dependent Claim
59 words
A trolley for use on an overhead trolley wire comprising a body member, and a pair of bevel gears on opposite sides of said body member having teeth arranged to mesh together above the trolley wire and roll on the trolley wire to support the trolley, said teeth having spaces therebetween to receive guy wires supporting said trolley wire.
Claim 10
Dependent Claim
59 words
A trolley for use on an overhead trolley wire comprising a body member, and a pair of bevel gears on opposite sides of said body member having teeth arranged to mesh together above the trolley wire and roll on the trolley wire to support the trolley, said teeth having spaces therebetween to receive guy wires supporting said trolley wire.
Claim 11
Dependent Claim
13 words
A trOlley as defined in claim 6, said body underlying said trolley wire.
Claim 12
Dependent Claim
17 words
A trolley as defined in claim 7, including guide rollers on said body underlying said trolley wire.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |