US3679166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat construction
Assignee: Isringhausen GmbH and Co KG
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Filing: 1970-02-05
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Granted: 1972-07-25
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Expires: 1990-02-05
Abstract
Abstract An upper support is upwardly spaced above a lower support and connected with the latter so as to be moveable downwardly toward and away from the lower support. A hollow elongated elastomeric spring is arranged below and in engagement with the upper support, with its longitudinal axis in upward position so that the spring is elastically compressible in direction of its longitudinal axis when the upper support moves in direction towards the lower support.
Inventors
- 👤 Klaus Sturhan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:28
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/506; B60N2/508; B60N2/52; B60N2/525
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
129 words
In a seat, particularly a vehicle seat, in combination, a lower support; an upper support upwardly spaced from said lower support; connecting means comprising at least two pairs of crossed levers connecting said supports with freedom of displacement of said upper support towards and away from said lower support, the levers each having an end connected to said upper and one end connected to saiD lower support, and pivot means connecting the levers of each pair at their intersection; hollow elongated elastomeric spring means having an upright longitudinal axis acting with one end on said lower support and with the other end on said pairs of levers at the respective pivot means, said elastomeric spring means being compressible in a direction from said upper support towards said lower support.
Claim 2
Dependent Claim
129 words
In a seat, particularly a vehicle seat, in combination, a lower support; an upper support upwardly spaced from said lower support; connecting means comprising at least two pairs of crossed levers connecting said supports with freedom of displacement of said upper support towards and away from said lower support, the levers each having an end connected to said upper and one end connected to saiD lower support, and pivot means connecting the levers of each pair at their intersection; hollow elongated elastomeric spring means having an upright longitudinal axis acting with one end on said lower support and with the other end on said pairs of levers at the respective pivot means, said elastomeric spring means being compressible in a direction from said upper support towards said lower support.
Claim 3
Dependent Claim
18 words
In a seat as defined in claim 1, wherein said spring means consists at least predominantly of rubber.
Claim 4
Dependent Claim
20 words
In a seat as defined in claim 1, wherein said spring means consists at least predominantly of synthetic plastic material.
Claim 5
Dependent Claim
53 words
In a seat as defined in claim 1; further comprising an engaging element having substantially the shape of an inverted U and including two lateral arm portions mounted respectively on said pivot means of said two pairs of crossed levers, and a center portion engaging the upper end of said elastomeric spring means.
Claim 6
Dependent Claim
45 words
In a seat as defined in claim 1; further comprising a plate element carried by said lower support and having an upper side; and wherein said elastomeric spring is seated upon and has a lower end abuttingly engaging said upper side of said plate element.
Claim 7
Dependent Claim
56 words
In a seat as defined in claim 5, said levers each having an other end; further comprising at least one transverse connector connecting said other ends of said levers of said pairs; and a dashpot having one end pivotally connected to and below said plate element and an other end pivotally connected to said transverse connector.
Claim 8
Dependent Claim
45 words
In a seat as defined in claim 4; further comprising a plate element carried by said lower support and having an upper side; and wherein said elastomeric spring is seated upon and has a lower end abuttingly engaging said upper side of said plate element.
Claim 9
Dependent Claim
29 words
In a seat as defined in claim 7; further comprising guide pin means provided on at least one of said elements and extending into said tubular elastomeric spring means.
Claim 10
Dependent Claim
27 words
In a seat as defined in claim 7; further comprising guide pin means provided on both of said elements and extending into said tubular elastomeric spring means.
Claim 11
Dependent Claim
51 words
In a seat as defined in claim 9; further comprising a disk member on said lower pin below said lower end; and wherein the guide pin means on said plate element is fast with said disk member and displaceable with the latter upwardly away from and downwardly toward said lower side.
Claim 12
Dependent Claim
51 words
In a seat as defined in claim 7, said plate element comprising a middle portion and a pair of lateral securing portions, and said spring means having in unstressed condition a predetermined maximum outer diameter; and wherein the outer dimensions of said center and middle portions approximate said maximum outer diameter.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |