Patent US3857340A successfully refreshed from Google Patents.
US3857340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Return bull wheel and cable clamp for cable-driven chair lift
Assignee: Berry Metal Co
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Filing: 1973-12-20
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Granted: 1974-12-31
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Expires: 1993-12-20
Abstract
Abstract A return bull wheel construction for cable-driven chair lift comprising a hub and a flanged head extending from the hub and surrounding and reinforcing the spokes, the flanged head terminating at the outer periphery of the wheel and has an upper flange to engage the inner jaw of grip or clamp and having a lower flange below the neoprene liner that engages the cable. The lower flange has a stiffener and the upper flange has a reinforcement bar. A channel member connects with the outer bent rim portion of the flanged head and a bent angle member that connects with the stiffener and the spokes.
Inventors
- 👤 J Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:46
CPC Classifications
B; B61; B61B; B61B12/00; B61B12/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A bull wheel construction for receiving a cable or the like thereabout including: a central hub, a plurality of spokes extending radially outward from the hub, a cover in the form of a flanged head disposed over the spokes and connecting with the hub, an outer peripheral cable receiving portion coupled at the outer periphery of the flanged head, and said flanged head including a horizontally extending portion generally radially of the hub and a downwardly extending portion generally axially of the hub.
Claim 2
Dependent Claim
83 words
A bull wheel construction for receiving a cable or the like thereabout including: a central hub, a plurality of spokes extending radially outward from the hub, a cover in the form of a flanged head disposed over the spokes and connecting with the hub, an outer peripheral cable receiving portion coupled at the outer periphery of the flanged head, and said flanged head including a horizontally extending portion generally radially of the hub and a downwardly extending portion generally axially of the hub.
Claim 3
Dependent Claim
33 words
The invention according to claim 1, and a pair of divergingly angularly spaced disc shaped segments radiating outwardly from the outer periphery of the flanged head adapted to entrain an associated cable therebetween.
Claim 4
Dependent Claim
30 words
The invention according to claim 1, and said outer peripheral cable receiving portion including a channel shaped member having a generally vertical portion facing outwardly and receiving therearound a liner.
Claim 5
Dependent Claim
49 words
The invention according to claim 3, and said peripheral portion further including a pair of upper and lower outwardly diverging annular segment parts spaced from one another and radially of the hub and about the channel member for capturing of the liner and an associated cable or the like.
Claim 6
Dependent Claim
35 words
The invention according to claim 4, and said upper segment part having an upper reinforcement bar thereon and coupling with the flanged head and said lower segmeNt part having a stiffener thereunder for supporting same.
Claim 7
Dependent Claim
92 words
The invention according to claim 4, and a clamp unit for carrying a hanger and chair extending within and between said segment parts and including: an inner jaw, an outer jaw, pivot means connecting each jaw, said inner jaw including an abutment engageable with the upper segment part for transmitting centrifugal forces directly from the inner jaw to the upper segment part eliminating working on the cable as the clamp rounds the bull wheel, reducing wire fatigue in the cable and eliminating centrifugal forces from the outer jaw and the pivot means.
Claim 8
Dependent Claim
33 words
The invention according to claim 6, and pivot means connecting each jaw whereby wire fatigue is reduced in the cable and thus eliminating centrifugal forces from the outer jaw and the pivot means.
Claim 9
Dependent Claim
21 words
The invention according to claim 1, and an angle member spaced beneath said downwardly extending portion and coupling with a spoke.
Claim 10
Dependent Claim
62 words
The invention according to claim 1, and said hub including an outer cylindrical upright wall and an inner upright cylindrical wall for receiving a vertical axis shaft therethrough, an upper ring connecting with the inner and outer cylindrical walls and a lower ring connecting with the inner and outer cylindrical walls, each ring connecting with the inner portion of the flanged head.
Claim 11
Dependent Claim
24 words
The invention according to claim 9, and an outer disc surrounding the outer cylindrical wall and coupling with the inner portions of the spokes.
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) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |