Patent US3552695A successfully refreshed from Google Patents.
US3552695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic pipe hanger
Assignee: Lisega SE
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Filing: 1968-10-07
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Granted: 1971-01-05
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Expires: 1988-10-07
Abstract
Abstract A pipe hanger wherein two toggle levers are symmetrically hinged to a tie bar carrying the pipe and by which a load on the pipe is transmitted to a spring system supported on a fixed abutment, the spring system comprising one or more helical springs arranged parallel and symmetrical with respect to the tie bar and held between a movable upper yoke and a stationary lower yoke. The outer end of each of the toggle levers is connected to the lower pressure yoke through a pivotable drag link whereas the apex of the toggle lever is slidably supported on the upper pressure yoke.
Inventors
- 👤 Gerhard Liesegang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:42
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/16; F16L3/20; F16L3/205; F16L3/2053
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
An elastic pipe hanger comprising a tie bar adapted for supporting a load, elastic means symmetrically disposed with respect to said tie bar for undergoing displacement in a direction parallel to said load, said elastic means comprising a fixed yoke, a displaceable yoke spaced from the fixed yoke and at least two springs engaging said yokes and symmetrically disposed relative to the tie bar, and link means connecting said tie bar and said elastic means, said link means including a pair of toggle elements pivotably connected to said tie bar at a common location, each said toggle element being slidably supported by said displaceable yoke at another location remote from the connection with the tie bar, and a pair of drag links, each being connected to said fixed yoke and pivotably connected to a corresponding toggle element.
Claim 2
Dependent Claim
137 words
An elastic pipe hanger comprising a tie bar adapted for supporting a load, elastic means symmetrically disposed with respect to said tie bar for undergoing displacement in a direction parallel to said load, said elastic means comprising a fixed yoke, a displaceable yoke spaced from the fixed yoke and at least two springs engaging said yokes and symmetrically disposed relative to the tie bar, and link means connecting said tie bar and said elastic means, said link means including a pair of toggle elements pivotably connected to said tie bar at a common location, each said toggle element being slidably supported by said displaceable yoke at another location remote from the connection with the tie bar, and a pair of drag links, each being connected to said fixed yoke and pivotably connected to a corresponding toggle element.
Claim 3
Dependent Claim
18 words
A hanger as claimed in claim 1 comprising rollers on said toggle elements resting on said displaceable yoke.
Claim 4
Dependent Claim
36 words
A hanger as claimed iN claim 2 wherein said toggle elements each have opposite ends, one connected to the tie bar and the other to an associated drag link, said roller being located between said ends.
Claim 5
Dependent Claim
38 words
A hanger as claimed in claim 3 wherein said tie bar is vertical and said yokes are horizontal, said displaceable yoke being movable vertically relative to the fixed yoke, said rollers being horizontally slidable on said displaceable yoke.
Claim 6
Dependent Claim
15 words
A hanger as claimed in claim 1 comprising a suspension stirrup supporting the fixed yoke.
Claim 7
Dependent Claim
15 words
A hanger as claimed in claim 5 wherein said drag links pass through respective springs.
Claim 8
Dependent Claim
19 words
A hanger as claimed in claim 5 wherein said fixed yoke rests on said stirrup and the drag links.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |