Patent US2019528A successfully refreshed from Google Patents.
Patent US3823903A successfully refreshed from Google Patents.
US3823903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual length pendulum shock absorbing system
Assignee: Menasco Inc
•
Filing: 1972-03-03
•
Granted: 1974-07-16
•
Expires: 1992-03-03
Abstract
Abstract A shock absorbing system employing a long pendulum and a short pendulum, the long pendulum to isolate against small motions, the short pendulum to isolate against large motions. A spring-damper assembly is connected to the long pendulum to damp the horizontal motion of the long pendulum.
Inventors
- 👤 W Hsieh
- 👤 G Kendall
- 👤 J Hoppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:11
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/052; F41F3/073
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
130 words
A shock absorbing system including: a pendulum unit comprising a first pendulum link and a second pendulum link, said first link connected between a fixed object and said second link, said first link being pivotally connected to said second link the longitudinal axis of said first link being substantially in alignment with the longitudinal axis of said second link when in the at rest position, the free end of said second link connected to a load supporting mechanism, said load supporting mechanism to suspendedly support a load relative to said fixed object; and a bracket secured to said fixed object, a portion of said bracket to surround said pivotal interconnection of said first link and said second link, said interconnection being movable a limited amount with respect to said bracket.
Claim 2
Dependent Claim
130 words
A shock absorbing system including: a pendulum unit comprising a first pendulum link and a second pendulum link, said first link connected between a fixed object and said second link, said first link being pivotally connected to said second link the longitudinal axis of said first link being substantially in alignment with the longitudinal axis of said second link when in the at rest position, the free end of said second link connected to a load supporting mechanism, said load supporting mechanism to suspendedly support a load relative to said fixed object; and a bracket secured to said fixed object, a portion of said bracket to surround said pivotal interconnection of said first link and said second link, said interconnection being movable a limited amount with respect to said bracket.
Claim 3
Dependent Claim
28 words
A system as defined in claim 1 wherein: said fixed object surrounds said load, there being three in number of pendulum units equiangularly spaced apart about said load.
Claim 4
Dependent Claim
141 words
A shock absorbing system including: a pendulum unit comprising a first pendulum link and a second pendulum link, said first link connected between a fixed object and said second link, the free end of said second link connected to a load supporting mechanism, said load supporting mechanism to suspendedly support a load relative to said fixed object; a bracket secured to said fixed object, a portion of said bracket to surround the interconnection of said first link and said second link, said interconnection being movable a limited amount with respect to said bracket; said fixed object surrounds said load, there being three in number of pendulum units equiangularly spaced apart about said load; and a damping unit located at each pendulum unit, each of said damping units connected to operate between said load and saiD fixed object through a line element.
Claim 5
Dependent Claim
141 words
A shock absorbing system including: a pendulum unit comprising a first pendulum link and a second pendulum link, said first link connected between a fixed object and said second link, the free end of said second link connected to a load supporting mechanism, said load supporting mechanism to suspendedly support a load relative to said fixed object; a bracket secured to said fixed object, a portion of said bracket to surround the interconnection of said first link and said second link, said interconnection being movable a limited amount with respect to said bracket; said fixed object surrounds said load, there being three in number of pendulum units equiangularly spaced apart about said load; and a damping unit located at each pendulum unit, each of said damping units connected to operate between said load and saiD fixed object through a line element.
Claim 6
Dependent Claim
21 words
A system as defined in claim 3 wherein: each of said damping units includes a first damper and a second damper.
Claim 7
Dependent Claim
61 words
A system as defined in claim 4 wherein: the connection of said damping units with respect to said load being located on a circle, said circle being concentric with said fixed object, each pair of a said first damper and a said second damper being azimuthally located with respect to the radius of said circle to its respective damping unit connection.
Claim 8
Dependent Claim
121 words
A shock absorbing system including: a pendulum unit comprising a first pendulum link and a second pendulum link, said first link connected between a fixed object and said second link, the free end of said second link connected to a load supporting mechanism, said load supporting mechanism to suspendedly support a load relative to said fixed object; a bracket secured to said fixed object, a portion of said bracket to surround the interconnection of said first link and said second link, said interconnection being movable a limited amount with respect to said bracket; and a damping unit located at each pendulum unit, each of said damping units connected to operate between said load and said fixed object through a line element.
Claim 9
Dependent Claim
121 words
A shock absorbing system including: a pendulum unit comprising a first pendulum link and a second pendulum link, said first link connected between a fixed object and said second link, the free end of said second link connected to a load supporting mechanism, said load supporting mechanism to suspendedly support a load relative to said fixed object; a bracket secured to said fixed object, a portion of said bracket to surround the interconnection of said first link and said second link, said interconnection being movable a limited amount with respect to said bracket; and a damping unit located at each pendulum unit, each of said damping units connected to operate between said load and said fixed object through a line element.
Claim 10
Dependent Claim
27 words
A system as defined in claim 6 wherein: each of said damping units includes at least a first damper, said first damper includes a frictional damping means.
Claim 11
Dependent Claim
48 words
A system as defined in claim 6 wherein: said first damper further includes a unidirectional clutching means, said unidirectional clutching means effecting engagement of said frictional damping means only during movement tending to further separate said load and said fixed object in the area of said first damper.
Claim 12
Dependent Claim
23 words
A system as defined in claim 8 wherein: said first damper further includes a spring means to maintain constantly taut said line element.
Claim 13
Dependent Claim
19 words
A system as defined in claim 9 wherein: said frictional damping means is pivotally connected to said fixed object.
References Cited (Backward Citations)
US1732942A
Cited
US2558164A
Cited
US2580815A
Cited
US3523483A
Cited
US3180222A
Cited
US3421363A
Cited
US3358958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |