Patent US2510440A successfully refreshed from Google Patents.
US3889936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined air mounts
Assignee: Hutchinson Aerospace and Industry Inc
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Filing: 1974-04-12
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Granted: 1975-06-17
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Expires: 1994-04-12
Abstract
Abstract A new pneumatic mounting assembly comprising two cooperative pneumatic spring systems. One system primarily serves as a load support while the other system primarily serves as a vibration and shock damper or isolator.
Inventors
- 👤 Kazuya Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:57
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; F16F15/027
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
185 words
In combination with a load mounting base, at least one pneumatic assembly for dynamically supporting said base, said assembly comprising: a first pneumatic spring system for supporting said load mounting base and providing isolation of relatively high frequency and relatively low amplitude vibrations, said first spring system comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid under pressure and being connected by a relatively large opening so that fluid can flow relatively unobstructed from said bellows to said tank and vice versa; a second pneumatic spring system for damping relatively low frequency, relatively large amplitude vibrations, said second spring system being disposed in parallel to said first spring system and comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid and being connected by a relatively small orifice whereby flow of fluid from said bellows to said tank and vice versa is restricted by said orifice, the stiffness of said second spring system being substantially less than the stiffness of said first spring system.
Claim 2
Dependent Claim
185 words
In combination with a load mounting base, at least one pneumatic assembly for dynamically supporting said base, said assembly comprising: a first pneumatic spring system for supporting said load mounting base and providing isolation of relatively high frequency and relatively low amplitude vibrations, said first spring system comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid under pressure and being connected by a relatively large opening so that fluid can flow relatively unobstructed from said bellows to said tank and vice versa; a second pneumatic spring system for damping relatively low frequency, relatively large amplitude vibrations, said second spring system being disposed in parallel to said first spring system and comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid and being connected by a relatively small orifice whereby flow of fluid from said bellows to said tank and vice versa is restricted by said orifice, the stiffness of said second spring system being substantially less than the stiffness of said first spring system.
Claim 3
Dependent Claim
29 words
Apparatus according to claim 1 wherein the air spring of said first spring system has a substantially greater fluid volume than the air spring of said second spring system.
Claim 4
Dependent Claim
33 words
Apparatus according to claim 1 wherein the fluid in said second spring system is under a pressure that is low in relation to the pressure of the fluid in said first spring system.
Claim 5
Dependent Claim
28 words
Apparatus according to claim 1 wherein said spring systems include means for injecting fluid into and withdrawing fluid from said springs, and means for regulating the fluid pressure.
Claim 6
Dependent Claim
57 words
Apparatus according to claim 1 wherein said first and second systems each comprise a plurality of springs as previously described, and further including (a) valve means for controlling the pressures in the tanks of the springs of said first system, and (b) a common pressure regulator connected to the tanks of the springs of said second system.
Claim 7
Dependent Claim
27 words
Apparatus according to claim 5 wherein said valve means are connected to a second pressure regulator, and both regulators are connected to a source of compressed fluid.
Claim 8
Dependent Claim
18 words
Apparatus according to claim 5 wherein the number of springs in said first and second systems are equal.
Claim 9
Dependent Claim
18 words
Apparatus according to claim 5 wherein the number of springs in said first and second systems are unequal.
Claim 10
Dependent Claim
22 words
Apparatus according to claim 1 wherein substantially all of the load of said load mounting base is carried by said first spring.
Claim 11
Dependent Claim
159 words
A pneumatic spring assembly comprising: a first substantially rigid tank defining an interior space; a First bellows made of an elastically deformable material connected to said first tank so as to provide relatively unconstricted fluid communication between said first tank and said first bellows; a second substantially rigid tank defining an interior space; a second bellows made of an elastically deformable material connected to said second tank so as to provide relatively constricted fluid communication between said second tank and said second bellows; said first tank and bellows and said second tank and bellows, respectively, being disposed in parallel with respect to a common mounting base and having internal fluid pressures such that substantially all of a compressive load applied normal to said base is carried by said first bellows and tank and the fluid therein and said second bellows and tank and the fluid therein coact to dampen vibrational movement of said load due to a shock load.
Claim 12
Dependent Claim
159 words
A pneumatic spring assembly comprising: a first substantially rigid tank defining an interior space; a First bellows made of an elastically deformable material connected to said first tank so as to provide relatively unconstricted fluid communication between said first tank and said first bellows; a second substantially rigid tank defining an interior space; a second bellows made of an elastically deformable material connected to said second tank so as to provide relatively constricted fluid communication between said second tank and said second bellows; said first tank and bellows and said second tank and bellows, respectively, being disposed in parallel with respect to a common mounting base and having internal fluid pressures such that substantially all of a compressive load applied normal to said base is carried by said first bellows and tank and the fluid therein and said second bellows and tank and the fluid therein coact to dampen vibrational movement of said load due to a shock load.
Claim 13
Dependent Claim
34 words
A pneumatic spring assembly according to claim 10 wherein said first tank and bellows have a substantially greater fluid volume and a substantially greater internal fluid pressure than said second tank and second bellows.
Claim 14
Dependent Claim
146 words
In combination with a load mounting base, a primary spring system for supporting said load mounting base and a secondary spring system disposed in parallel with said primary spring system, for damping selected vibrations of said base, said primary spring system comprising a plurality of primary air springs each having a bellows and a tank, with said bellows and tank containing a fluid under pressure and being connected by a relatively large opening so that said fluid can flow relatively unobstructed from said bellows to said tank and vice versa; and said secondary spring system comprisng a plurality of secondary air springs each having a bellows and a tank, with said bellows and said tank containing a fluid under pressure and being connected by a relatively small orifice whereby flow of fluid from said bellows to said tank and vice versa is restricted by said orifice.
Claim 15
Dependent Claim
146 words
In combination with a load mounting base, a primary spring system for supporting said load mounting base and a secondary spring system disposed in parallel with said primary spring system, for damping selected vibrations of said base, said primary spring system comprising a plurality of primary air springs each having a bellows and a tank, with said bellows and tank containing a fluid under pressure and being connected by a relatively large opening so that said fluid can flow relatively unobstructed from said bellows to said tank and vice versa; and said secondary spring system comprisng a plurality of secondary air springs each having a bellows and a tank, with said bellows and said tank containing a fluid under pressure and being connected by a relatively small orifice whereby flow of fluid from said bellows to said tank and vice versa is restricted by said orifice.
Claim 16
Dependent Claim
27 words
The apparatus combination of claim 12 wherein said each of said primary air springs has a substantially greater fluid volume than each of said secondary air springs.
Claim 17
Dependent Claim
35 words
The apparatus combination of claim 12 wherein the fluid in each of said secondary air springs is at a substantially lower pressure than the pressure of the fluid in each of said primary air springs.
Claim 18
Dependent Claim
187 words
In combination with a load mounting base, at least one pneumatic assembly for dynamically supporting said base, said assembly comprising: a first pneumatic spring system comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid under pressure and being connected by a relatively large opening so that fluid can flow relatively unobstructed from said bellows to said tank and vice versa; a second pneumatic spring system mounted in parallel with said first spring system relative to said load mounting base, said second spring system comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid and being connected by a relatively small orifice whereby flow of fluid from said bellows to said tank and vice versa is restricted by said orifice; said second pneumatic spring system having a substantially smaller fluid volume that said first pneumatic spring system, and the fluid in said second pneumatic spring system being under a pressure that is low in relation to the pressure of the fluid of said first pneumatic spring system.
Claim 19
Dependent Claim
187 words
In combination with a load mounting base, at least one pneumatic assembly for dynamically supporting said base, said assembly comprising: a first pneumatic spring system comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid under pressure and being connected by a relatively large opening so that fluid can flow relatively unobstructed from said bellows to said tank and vice versa; a second pneumatic spring system mounted in parallel with said first spring system relative to said load mounting base, said second spring system comprising an air spring having a bellows and a tank with said bellows and tank being filled with a fluid and being connected by a relatively small orifice whereby flow of fluid from said bellows to said tank and vice versa is restricted by said orifice; said second pneumatic spring system having a substantially smaller fluid volume that said first pneumatic spring system, and the fluid in said second pneumatic spring system being under a pressure that is low in relation to the pressure of the fluid of said first pneumatic spring system.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |