US3659834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring support device
Assignee: Individual
•
Filing: 1970-06-10
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Granted: 1972-05-02
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Expires: 1990-06-10
Abstract
Abstract A spring support device including a housing having a lower wall and an upper wall, a helical compression spring within the housing and bearing at its lower end against the lower wall, a spring backing plate within the housing and bearing against the upper end of the spring, and a load-carrying unit extending through the spring and the lower wall and engaging the backing plate. In one embodiment, the load-carrying unit includes a threaded rod extending through the upper wall. In another embodiment, a pair of spaced threaded rods, which are parallel to the path of movement of the load-carrying unit, are secured to the backing plate and extend through the upper wall. In both embodiments, the rods are provided with nuts that are operable from the exterior of the housing for adjustably limiting downward travel of the backing plate and the load-carrying unit and, therefore, the force applied to the spring by a load.
Inventors
- 👤 Leonard S Suozzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:58
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/16; F16L3/20; F16L3/205; F16L3/2053
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
176 words
In a spring support device which includes a housing having a lower wall, an upper wall spaced from the lower wall and a side wall connected to the lower and upper walls, a backing plate unit within the housing and movable in the space between the lower and upper walls, compression spring means within the housing and bearing against the lower wall and the backing plate unit, and a load-carrying unit connected to the backing plate unit and extending through the spring means and an opening in the lower wall, the improvement comprising travel stop means for limiting movement of the backing plate unit in the direction of the lower wall and corresponding deflection of the spring means when the device is in active service, said stop means including rod means connected to one of the units and extending through an opening in the upper wall and adjusting means carried by the rod means for varying the effective length of the rod means, said adjusting means being positioned and operable from the exterior of the housing.
Claim 2
Dependent Claim
176 words
In a spring support device which includes a housing having a lower wall, an upper wall spaced from the lower wall and a side wall connected to the lower and upper walls, a backing plate unit within the housing and movable in the space between the lower and upper walls, compression spring means within the housing and bearing against the lower wall and the backing plate unit, and a load-carrying unit connected to the backing plate unit and extending through the spring means and an opening in the lower wall, the improvement comprising travel stop means for limiting movement of the backing plate unit in the direction of the lower wall and corresponding deflection of the spring means when the device is in active service, said stop means including rod means connected to one of the units and extending through an opening in the upper wall and adjusting means carried by the rod means for varying the effective length of the rod means, said adjusting means being positioned and operable from the exterior of the housing.
Claim 3
Dependent Claim
18 words
A spring support device according to claim 1 wherein the rod means is connected to the load-carrying unit.
Claim 4
Dependent Claim
54 words
A spring support device according to claim 2 wherein the rod means comprises a threaded rod which is a linear extension of the load-carrying unit and the adjusting means comprises an internally threaded member, such as a nut, which engages the rod and is adapted to engage the outer surface of the upper wall.
Claim 5
Dependent Claim
66 words
A spring support device according to claim 3 further including an inverted U-shaped protective unit secured to and projecting above the upper wall and comprising a web and a pair of arms, each arm being spaced from a corresponding side of the rod, and a connector affixed to the web and aligned with the rod, said connector being adapted to be anchored to a stationary support.
Claim 6
Dependent Claim
19 words
A spring support device according to claim 1 wherein the rod means is connected to the backing plate unit.
Claim 7
Dependent Claim
58 words
A spring support device according to claim 5 wherein the rod means comprises a pair of parallel threaded rods which extend through and above corresponding openings in the upper wall, the device further including a connector affixed to the upper wall and aligned with the load-carrying unit, said connector being adapted to be anchored to a stationary support.
Claim 8
Dependent Claim
35 words
A spring support device according to claim 6 wherein the longitudinal axes of the rods and the connector are in a common plane and each rod is spaced from a corresponding side of the connector.
References Cited (Backward Citations)
US2995327A
Cited
US3148870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |