US3707883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission pulley and means for changing the diameter of same
Assignee: Goodrich Corp
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Filing: 1971-10-02
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Granted: 1973-01-02
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Expires: 1991-10-02
Abstract
Abstract A power transmission pulley having a metal hub and grooved rim for receiving a belt with a plurality of adaptor rings of plastic material for incrementally changing the diameter of the pulley. Each ring has a circumferential rib on the inner periphery and a belt groove on the outer periphery. The adaptors are nested concentrically over the rim of the pulley. Each adaptor ring is axially assembled by circumferential stretching over the rim or previously assembled adaptor ring with the rib received in the belt groove.
Inventors
- 👤 R Kamenick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:22
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/48
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
111 words
A power transmission pulley comprising: a. an integral hub having a circumferential groove formed in the periphery thereof for receiving a belt therein; b. annular adaptor means formed of elastically deformable material for increasing the diameter of said pulley a predetermined amount which means is removably received over said hub in a manner requiring circumferential deformation of said means thereof, said means having a circumferential groove formed in the outer periphery thereof for receiving a belt therein and a portion formed integrally therewith and extending from the inner periphery thereof, which portion is received in the groove in the periphery of said hub for retaining said adaptor means on said hub.
Claim 2
Dependent Claim
111 words
A power transmission pulley comprising: a. an integral hub having a circumferential groove formed in the periphery thereof for receiving a belt therein; b. annular adaptor means formed of elastically deformable material for increasing the diameter of said pulley a predetermined amount which means is removably received over said hub in a manner requiring circumferential deformation of said means thereof, said means having a circumferential groove formed in the outer periphery thereof for receiving a belt therein and a portion formed integrally therewith and extending from the inner periphery thereof, which portion is received in the groove in the periphery of said hub for retaining said adaptor means on said hub.
Claim 3
Dependent Claim
29 words
The pulley defined in claim 1, wherein said portion of said adaptor means extending into the said groove in the hub is a continuous circumferential rib extending radially inwardly.
Claim 4
Dependent Claim
67 words
The pulley defined in claim 1, wherein said adaptor means includes at least two annular members with each member having a belt groove in the outer periphery and a portion formed integrally with the inner periphery thereof extending radially inwardly therefrom and the annular members are of diameters such as to nest radially and concentrically, with the inner one of said members received directly over said hub.
Claim 5
Dependent Claim
42 words
The pulley defined in claim 3, wherein each of said annular members has the said portion formed integrally with the inner periphery thereof in the form of a continuous circumferential rib extending radially inwardly and received in the next inner belt groove.
Claim 6
Dependent Claim
53 words
The pulley defined in claim 3, wherein each of the said annular members has its inner diameter in the unstretched state less than its assembled and stretched inner diameter such that each annular member in the assembled state is stretched by an amount equal to at least 1 percent of its free diameter.
Claim 7
Dependent Claim
23 words
The pulley defined in claim 1, wherein the groove in said hub periphery and said groove in said adaptor means are substantially V-shaped.
Claim 8
Dependent Claim
21 words
The pulley defined in claim 1, wherein said adaptor means has a radial thickness not greater than twice its axial width.
Claim 9
Dependent Claim
79 words
Means for incrementally changing the diameter of a grooved power transmission pulley comprising an annulus of elastically deformable material having a circumferential groove formed in the outer periphery thereof for receiving a belt therein and having a portion formed integrally therewith and extending from the inner periphery thereof, wherein said means is adapted to be installed in a stretched condition over a rigid grooved pulley with the said portion extending from the inner periphery received in the pulley groove.
Claim 10
Dependent Claim
79 words
Means for incrementally changing the diameter of a grooved power transmission pulley comprising an annulus of elastically deformable material having a circumferential groove formed in the outer periphery thereof for receiving a belt therein and having a portion formed integrally therewith and extending from the inner periphery thereof, wherein said means is adapted to be installed in a stretched condition over a rigid grooved pulley with the said portion extending from the inner periphery received in the pulley groove.
Claim 11
Dependent Claim
41 words
The means defined in claim 8, wherein said portion extending from the inner periphery is a continuous circumferential rib extending radially inwardly such that circumferential deformation of said means is required to assemble same over the web of a grooved pulley.
Claim 12
Dependent Claim
91 words
The means defined in claim 8, wherein said means comprises at least two annular members with each member having a belt groove in the outer periphery and a portion formed integrally with the inner periphery extending radially inwardly therefrom, the said annular members being of different diameters such as to nest concentrically in respectively increasing radial increments, with the inner member adapted to be installed in a stretched state over a grooved pulley and each successively larger member adapted to be installed in a stretched condition over the next smaller member.
Claim 13
Dependent Claim
53 words
The means defined in claim 10, wherein each of said annular members has the said portion formed on the inner periphery in the form of a continuous circumferential rib extending radially inwardly such that circumferential deformation of each member is required to install and remove each of said members from a mating groove.
Claim 14
Dependent Claim
116 words
The means defined in claim 10, wherein the inner one of said members has its free inner diameter less than the diameter of the rim, a pulley over which said member is to be assembled such that when said inner member is assembled over a grooved pulley, it is stretched by an amount equal to at least 1 percent of its free diameter and each of the remaining members has its free inner diameter less than the diameter of the outer periphery of the assembled next inner member over which it is to be assembled such that when assembled, it is stretched by an amount equal to at least 1 percent of its free inner diameter.
Claim 15
Dependent Claim
20 words
The means defined in claim 8, wherein said means has a radial thickness not greater than twice its axial width.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |