Patent US4603830A successfully refreshed from Google Patents.
US4603830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring mounting apparatus
Assignee: Wilkhahn Wilkening and Hahne GmbH and Co KG
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Filing: 1984-09-10
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Granted: 1986-08-05
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Expires: 2004-09-10
Abstract
Abstract The invention relates to a device for sprung tilting movement of a component such as an inclining mechanism for a tiltable seat. The spring system is formed by at least one spring rod which is rotatably mounted in at least two bearings of which one bearing is stationary in the operating state while the other bearing is rotatable about an axis spatially offset relative to the axis of the spring rod. This results in a simple, light and space-saving construction.
Inventors
- 👤 Klaus Franck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:53
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; F; F16; F16F; F16F1/00; F16F1/02; F16F1/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
Spring mounting apparatus for a pair of relatively tiltable members, said apparatus comprising a pair of spaced apart, coaxial bearings; an intermediate bearing interposed between the bearings of said pair; means mounting the bearings of said pair on one of said members; means mounting the intermediate bearing on the other of said members and coaxially with the bearings of said pair; means restraining the intermediate bearing from rotation; and at least one elongate spring rod spanning all of said bearings and being journaled in at least the intermediate bearing for rotation relative thereto about its own axis, the axis of said rod being spatially offset relative to the axes of said bearings.
Claim 2
Dependent Claim
112 words
Spring mounting apparatus for a pair of relatively tiltable members, said apparatus comprising a pair of spaced apart, coaxial bearings; an intermediate bearing interposed between the bearings of said pair; means mounting the bearings of said pair on one of said members; means mounting the intermediate bearing on the other of said members and coaxially with the bearings of said pair; means restraining the intermediate bearing from rotation; and at least one elongate spring rod spanning all of said bearings and being journaled in at least the intermediate bearing for rotation relative thereto about its own axis, the axis of said rod being spatially offset relative to the axes of said bearings.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 wherein said rod is journaled in all of said bearings for rotation relative thereto.
Claim 4
Dependent Claim
40 words
Apparatus according to claim 1 including at least one other rod parallel to the first-mentioned rod and being similarly associated with all of said bearings, said other rod and said first-mentioned rod being symmetrical about the axes of said bearings.
Claim 5
Dependent Claim
37 words
Apparatus according to claim 1 wherein all of said bearings are enclosed within a tube, the bearings of said pair being rotatable relative to said tube and the intermediate bearing being adjustably fixed relative to said tube.
Claim 6
Dependent Claim
20 words
Apparatus according to claim 4 including means for rotatably adjusting the position of the intermediate bearing relative to said tube.
Claim 7
Dependent Claim
25 words
Apparatus according to claim 1 wherein said rod is constructed from the class of materials consisting of steel, glass fibre, and glass fibre reinforced polyester.
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) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |