Patent US4798220A successfully refreshed from Google Patents.
US3868099A
Expired / Lapsed
US
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Annularly resilient, conically shaped component
Assignee: LuK Lamellen und Kupplungsbau GmbH
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Filing: 1972-09-25
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Granted: 1975-02-25
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Expires: 1992-09-25
Abstract
Abstract An annularly resilient component used as a cup spring or the like has inner and outer walls of conical configuration and an annular inner and outer rim. A tab extends generally radially from one of the rims. A wall portion disposed generally at the transitional area between the tab and the rim extends generally transversely of the tab, such wall portion forming an annular continuation of the rim, thereby providing a reduction in stress concentration and prolonging the usable life of such component.
Inventors
- 👤 Paul Maucher
- 👤 Fritz Lob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:47
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/32
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
82 words
An annular resilient component comprising an annular body member having an inner and an outer wall surface of conical configuration and an annular inner and outer rim, and tab means extending from at least one of said rims of said boDy member, said tab means and said body member defining therebetween a transitional region having a conical inner wall surface portion wherein a chamfer extending transversely to said tab means is formed, said one of said rims defining part of said chamfer.
Claim 2
Dependent Claim
82 words
An annular resilient component comprising an annular body member having an inner and an outer wall surface of conical configuration and an annular inner and outer rim, and tab means extending from at least one of said rims of said boDy member, said tab means and said body member defining therebetween a transitional region having a conical inner wall surface portion wherein a chamfer extending transversely to said tab means is formed, said one of said rims defining part of said chamfer.
Claim 3
Dependent Claim
22 words
A component according to claim 1, wherein said chamfer is formed by a reduction of the cross section of said transitional region.
Claim 4
Dependent Claim
37 words
A component according to claim 2, wherein the reduced cross-section of said transition region continues over the radial extent of said tab means such that said tab means gradually reduce in thickness in a radially inward direction.
Claim 5
Dependent Claim
23 words
A component according to claim 1, wherein said chamfer is defined by an undercut section of said body member at said transitional region.
Claim 6
Dependent Claim
29 words
A component according to claim 4, wherein a region of greatest reduced cross section of said transitional region forms a continuation of an annular contour of said body member.
Claim 7
Dependent Claim
40 words
A component according to claim 4, wherein a region of greatest reduced cross section of said transitional region is disposed radially towards the ends of said tab means relative to the continuation of said annular contour of said body member.
Claim 8
Dependent Claim
31 words
A component according to claim 1, wherein the depth of said chamfer is within the range of from 1/10 to 2/3 of the thickness of the material at said transitional region.
Claim 9
Dependent Claim
101 words
An annularly resilient component comprising a body member having an inner and outer wall of conical configuration and an annular inner and outer rim, a tab extending generally radially from one of said rims, said component having a wall portion disposed generally at the transitional area between said tab and said one rim and extending generally transversely of said tab, said wall portion forming an annular continuation of said one rim, wherein said wall portion which forms an annular continuation of said one rim is in the form of a continuous annularly extending bevel on the wall defining said one rim.
Claim 10
Dependent Claim
101 words
An annularly resilient component comprising a body member having an inner and outer wall of conical configuration and an annular inner and outer rim, a tab extending generally radially from one of said rims, said component having a wall portion disposed generally at the transitional area between said tab and said one rim and extending generally transversely of said tab, said wall portion forming an annular continuation of said one rim, wherein said wall portion which forms an annular continuation of said one rim is in the form of a continuous annularly extending bevel on the wall defining said one rim.
Claim 11
Dependent Claim
20 words
A component according to claim 5, wherein said chamfer extends substantially tangentially to the annular contour of said body member.
Claim 12
Dependent Claim
46 words
A component according to claim 9, having radially outwardly extending tab means in the form of arms, and wherein said chamfer is defined by a contour surface facing said body member and running into a chord-like bevel at the outer peripheral region of said body member.
Claim 13
Dependent Claim
22 words
A component according to claim 1, wherein said chamfer is formed by removing material from said body member at said transitional region.
Claim 14
Dependent Claim
23 words
A component according to claim 1, wherein said chamfer is formed by displacing the material of said body member at said transitional region.
Claim 15
Dependent Claim
17 words
A component according to claim 1, wherein said tab means extend radially outwardly of said body member.
Claim 16
Dependent Claim
17 words
A component according to claim 1, wherein said tab means extend radially inwardly of said body member.
Claim 17
Dependent Claim
15 words
A component according to claim 1, wherein said chamfer is formed by a crease-like bead.
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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |