US3880536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hub construction
Assignee: Eaton Corp
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Filing: 1974-03-18
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Granted: 1975-04-29
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Expires: 1994-03-18
Abstract
Abstract A hub is constructed to be frictionally held on a shaft upon insertion of the shaft into an opening in the hub by a retainer means. The retainer means includes a series of deflectable resilient fingers which resiliently yield upon insertion of the shaft into the stem and which apply retaining forces to the shaft, which forces act in substantially four directions.
Inventors
- 👤 Stephen Petrus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:27
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/20; G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45775; Y10T292/00; Y10T292/85; Y10T292/854; Y10T292/869; Y10T403/00; Y10T403/70; Y10T403/7062; Y10T403/7098; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2084
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
243 words
A one-piece, molded, self-retaining hub for retention to a generally cross-sectionally ''''D'''' shaped shaft, said hub comprising: a body having an axially extending opening adapted to receive the shaft; said hub having retainer means integral therewith for retaining the shaft therein by applying retaining forces to the outer peripheral surface of the shaft; said retainer means comprising: a first means adapted to apply a first pair of oppositely directed resultant forces to the flat portion and a substantially opposite portion of the outer peripheral surface of the shaft in response to insertion of the shaft into said hub, said first means comprising first and second resiliently deflectable cantilevered ribs adapted to engage the flat portion of the outer peripheral surface of the shaft and a curved, deflectable rib adapted to engage the outer peripheral surface of the shaft opposite the flat portion; a second means adapted to apply a second pair of substantially oppositely directed resultant forces to two other opposite peripheral portions of the shaft in reponse to insertion of the shaft into the said hub, the two other outer peripheral portions of the shaft each being intermediate the flat portion and the portion opposite the flat portion of the outer periphery of the shaft, said second means comprising third and forth resiliently deflectable cantilevered ribs adapted to engage the two other outer peripheral portions; said curved rib being interposed said third and forth cantilevered ribs forming a smooth, continuous surface therewith.
Claim 2
Dependent Claim
243 words
A one-piece, molded, self-retaining hub for retention to a generally cross-sectionally ''''D'''' shaped shaft, said hub comprising: a body having an axially extending opening adapted to receive the shaft; said hub having retainer means integral therewith for retaining the shaft therein by applying retaining forces to the outer peripheral surface of the shaft; said retainer means comprising: a first means adapted to apply a first pair of oppositely directed resultant forces to the flat portion and a substantially opposite portion of the outer peripheral surface of the shaft in response to insertion of the shaft into said hub, said first means comprising first and second resiliently deflectable cantilevered ribs adapted to engage the flat portion of the outer peripheral surface of the shaft and a curved, deflectable rib adapted to engage the outer peripheral surface of the shaft opposite the flat portion; a second means adapted to apply a second pair of substantially oppositely directed resultant forces to two other opposite peripheral portions of the shaft in reponse to insertion of the shaft into the said hub, the two other outer peripheral portions of the shaft each being intermediate the flat portion and the portion opposite the flat portion of the outer periphery of the shaft, said second means comprising third and forth resiliently deflectable cantilevered ribs adapted to engage the two other outer peripheral portions; said curved rib being interposed said third and forth cantilevered ribs forming a smooth, continuous surface therewith.
Claim 3
Dependent Claim
65 words
The hub of claim 1 wherein said curved rib and said third and forth cantilevered ribs comprise an axially extending curved surface suspended in said opening bY a pair of radially extending legs extending from the opposite ends of said curved surface to the inner wall of said opening, said third and forth cantilevered ribs comprising the intersections of said legs and said curved surface.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |