Patent US3838928A successfully refreshed from Google Patents.
US3838928A
Expired / Lapsed
US
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Spacer ring
Assignee: Bosch Rexroth AG
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Filing: 1973-02-28
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Granted: 1974-10-01
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Expires: 1993-02-28
Abstract
Abstract A unitary spacer element of resilient sheet metal of uniform thickness is formed with parallel, transversely juxtaposed rows of alternating, trough-shaped recesses and integral projections in each major face, the recesses in each face corresponding to aligned projections in the other face. The rows are separated from each other by elongated face portions free from recesses and projections, and all recesses are of equal depth and elongated transversely to the direction of row elongation.
Inventors
- 👤 W Will
- 👤 G Blaurock
- 👤 H Stender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:32
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0829; F16D1/0835; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7061
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
167 words
A spacer element of sheet material having substantially uniform thickness and two major, parallel faces separated by said thickness, a. said element being formed with a plurality of rows of projections and recesses in each of said faces, 1. said rows being elongated in a common direction and transversely juxtaposed, b. each recess having the shape of a trough and being aligned with a projection on the other face in the direction of said thickness, c. each row in each of said faces including respective pluralities of projections and recesses, and d. respective portions of said faces elongated in said common direction being free of projections and recesses, 1. said element having two edges connecting said faces and elongated in said common direction, two of said elongated portions of each face extending along said edges respectively, 2. said faces being of substantially cylindrical overall shape about an axis transverse to said common direction, and the elongated portions extending along said edges being conically arcuate about said axis.
Claim 2
Dependent Claim
167 words
A spacer element of sheet material having substantially uniform thickness and two major, parallel faces separated by said thickness, a. said element being formed with a plurality of rows of projections and recesses in each of said faces, 1. said rows being elongated in a common direction and transversely juxtaposed, b. each recess having the shape of a trough and being aligned with a projection on the other face in the direction of said thickness, c. each row in each of said faces including respective pluralities of projections and recesses, and d. respective portions of said faces elongated in said common direction being free of projections and recesses, 1. said element having two edges connecting said faces and elongated in said common direction, two of said elongated portions of each face extending along said edges respectively, 2. said faces being of substantially cylindrical overall shape about an axis transverse to said common direction, and the elongated portions extending along said edges being conically arcuate about said axis.
Claim 3
Dependent Claim
24 words
each recess having the shape of a trough and being aligned radially relative to said axis with a projection on the other major face,
Claim 4
Dependent Claim
24 words
each recess having the shape of a trough and being aligned radially relative to said axis with a projection on the other major face,
Claim 5
Dependent Claim
30 words
said faces being of substantially cylindrical overall shape about an axis transverse to said common direction, and the elongated portions extending along said edges being conically arcuate about said axis.
Claim 6
Dependent Claim
30 words
said faces being of substantially cylindrical overall shape about an axis transverse to said common direction, and the elongated portions extending along said edges being conically arcuate about said axis.
Claim 7
Dependent Claim
38 words
An element as set forth in claim 1, wherein one of said elongated portions is interposed between two of said rows, the respective depths of said recesses in both faces relative to said elongated portions being substantially equal.
Claim 8
Dependent Claim
49 words
An element as set forth in claim 1, wherein said recesses are elongated transversely to said common direction, the recesses and projections in each row alternating and being contiguously juxtaposed in said common direction, the cross section of said element longitudinally through each row being of continuously undulating shape.
Claim 9
Dependent Claim
24 words
each row in each of said major faces including projections and recesses, the projections of said two major faces respectively abutting against said members,
Claim 10
Dependent Claim
24 words
each row in each of said major faces including projections and recesses, the projections of said two major faces respectively abutting against said members,
Claim 11
Dependent Claim
29 words
An element as set forth in claim 3, wherein said shape is substantially sinusoidal, the sinusoidal cross-sectional shapes of two juxtaposed rows being offset in phase by substantially 180*.
Claim 12
Dependent Claim
18 words
respective portions of said major faces circumferentially elongated relative to said axis being free of projections and recesses,
Claim 13
Dependent Claim
18 words
respective portions of said major faces circumferentially elongated relative to said axis being free of projections and recesses,
Claim 14
Dependent Claim
63 words
said recess having an annular axial bottom face, a radial end face, and a fillet connecting said bottom and end faces, said element having a circumferential edge connecting said two major faces, respective ones of said elongated portions of said two major faces being conically arcuate about said axis and directed toward said fillet in a direction obliquely inclined relative to said axis.
Claim 15
Dependent Claim
63 words
said recess having an annular axial bottom face, a radial end face, and a fillet connecting said bottom and end faces, said element having a circumferential edge connecting said two major faces, respective ones of said elongated portions of said two major faces being conically arcuate about said axis and directed toward said fillet in a direction obliquely inclined relative to said axis.
Claim 16
Dependent Claim
42 words
An element as set forth in claim 1, wherein said projections and said recesses are elongated transversely of said common direction, each recess in each row being aligned in the direction of elongation thereof with a projection in an adjacently juxtaposed row.
Claim 17
Dependent Claim
14 words
An element as set forth in claim 1, wherein said recesses are axially elongated.
Claim 18
Dependent Claim
46 words
An assembly comprising, in combination: a. a first member formed with a bore and having a concavely cylinDrical first face in said bore about an axis; b. a second member partly received in said bore and having a coaxial, convexly cylindrical second face in said bore,
Claim 19
Dependent Claim
46 words
An assembly comprising, in combination: a. a first member formed with a bore and having a concavely cylinDrical first face in said bore about an axis; b. a second member partly received in said bore and having a coaxial, convexly cylindrical second face in said bore,
Claim 20
Dependent Claim
36 words
An assembly as set forth in claim 7, wherein said spacer element is axially split and of resilient material, abutting engagement of said projections with one of said members holding said spacer element under resilient stress.
Claim 21
Dependent Claim
36 words
An assembly as set forth in claim 7, wherein said rows are spaced in the direction of said axis, the rows of each pair of said rows being separated by one of said circumferentially elongated portions.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |