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US3784146A Expired / Lapsed US ⏱️ 0.0 years remaining

Horizontal vibration isolation system

Assignee: Newport Corp USA
•
Filing: 1972-04-24
•
Granted: 1974-01-08
•
Expires: 1992-04-24
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Abstract

Abstract A horizontal vibration isolation system including a hollow piston defining a chamber closed by a top plate which is formed with a central aperture. An internal plate is suspended in the chamber by a plurality of cables secured between the top plate and the internal plate which supports a connecting rod which protrudes axially through the aperture in the top plate. The protruding end of the connecting rod is formed to be secured to the bottom surface of the member which is to be isolated from horizontal vibrations. The chamber may be filled with oil for damping the horizontal motion of the system at resonance. The cables may be solid metallic rods or be formed of braided wire. Each cable is swaged at its lower end, e.g., with a ball end, which fits into a hole therefor formed in the internal plate. The cables are adjustably secured to the top plate for aligning the internal plate to a desired horizontal position. In operation, a plurality of the pistons are provided, each of the pistons being secured to a bottom surface of the isolated member. Each of the pistons may be supported on a flexible diaphragm which provides vertical isolation of the vibrations, the diaphragm also forming the sealing surface of a fluid chamber, the fluid being a compressible gas such as air or nitrogen.

Inventors

  • 👤 J Matthews

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 07:45
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; F16F15/0232

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 109 words
A vibration isolation system for isolating a member from horizontal vibrations, comprising: a piston supportable below said member; an isolation member coaxial with said piston and formed at its top end to be secured to said first-mentioned member, said isolation member comprising a support rod; a plurality of cables; means for securing the tops of said cables to said piston at a region at the top thereof; and means for securing the bottoms of said cables to said isolation member at a region spaced from the top end thereof so that said piston supports said isolation member via said cables and comprises a plate secured to said support rod.
Claim 2
Dependent Claim 109 words
A vibration isolation system for isolating a member from horizontal vibrations, comprising: a piston supportable below said member; an isolation member coaxial with said piston and formed at its top end to be secured to said first-mentioned member, said isolation member comprising a support rod; a plurality of cables; means for securing the tops of said cables to said piston at a region at the top thereof; and means for securing the bottoms of said cables to said isolation member at a region spaced from the top end thereof so that said piston supports said isolation member via said cables and comprises a plate secured to said support rod.
Claim 3
Dependent Claim 94 words
A vibration isolation system in accordance with claim 1 wherein: said piston is hollow and defines a chamber internally thereof; said cables are within said chamber; said means for securing the tops of said cables comprises a top plate enclosing said chamber and having a central aperture therethrough; said isolation member comprises a chamber having said support rod therein, the top end of said support rod extending axially through the aperture in said top plate; and wherein said means for securing the bottoms of said cables comprises said plate internally suspended in said chamber.
Claim 4
Dependent Claim 30 words
A vibration isolation system in accordance with claim 2 wherein said chamber is closed at its bottom end and contains a viscous fluid for damping movement of said internal plate.
Claim 5
Dependent Claim 17 words
A vibration isolation system in accordance with claim 2 wherein said cables are formed as solid rods.
Claim 6
Dependent Claim 17 words
A vibration isolation system in accordance with claim 1 wherein said cables are formed as braided wires.
Claim 7
Dependent Claim 30 words
A vibration isolation system in accordance with claim 2 wherein each of said cables is terminated at one end with ball ends which fit into holes in said internal plate.
Claim 8
Dependent Claim 29 words
A vibration isolation system in accordance with claim 2 wherein said cables are adjustably secured to said top plate for aligning said internal plate to a desired horizontal position.
Claim 9
Dependent Claim 29 words
A vibration isolation system in accordance with claim 2 wherein a plurality of pistons are provided, each of said pistons being secured to the bottom surface of said member.
Claim 10
Dependent Claim 26 words
A vibration isolation system in accordance with claim 8 wherein each of said pistons is supported on a flexible diaphragm which provides vertical isolation of vibrations.
Claim 11
Dependent Claim 31 words
A vibration isolation system in accordance with claim 9 wherein said diaphragm forms the sealing surface of a fluid chamber, the fluid being a compressible gas such as air or nitrogen.

References Cited (Backward Citations)

US2148937A Cited
US3355051A Cited
US3371895A Cited
US3595503A Cited
US3586272A Cited
US3627246A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-07 1977-07-09 1978-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-07 1981-07-09 1982-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-07 1985-07-09 1986-01-08 $7700.00 Window Closed / Lapsed

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