Bonded guide tube and bellow assembly for air spring

US9636962B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9636962-B2
Application numberUS-201414488333-A
CountryUS
Kind codeB2
Filing dateSep 17, 2014
Priority dateSep 17, 2014
Publication dateMay 2, 2017
Grant dateMay 2, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An air spring includes a bellow at least partially delimiting at least one working chamber that is constructed and arranged to be filled with compressed air. A guide tube surrounds at least a portion of the bellow. A bonding agent solely fixes a portion of the bellow to the guide tube. A piston is associated with the bellow. The bellow is constructed and arranged to roll with respect to an outer surface of the piston and an inner surface of the guide tube.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of securing a portion of a bellow to a metal guide tube of an air spring, the method comprising the steps of: placing the bellow, in an unformed state, in an outer mold form along with the guide tube, providing a bonding agent on a portion of an inner surface of the guide tube at a location where the bellow is to be fixed to the guide tube, the bonding agent being separate from material of the bellow, pressing the bellow against the outer mold to form the bellow and pressing the bellow against a portion of the guide tube so that the bonding agent contacts the guide tube and a portion of a peripheral surface of the bellow, curing the bellow and bonding agent, and after the curing step, removing the outer mold form, with the bonding agent fixing the formed bellow directly to the guide tube. 2. The method of claim 1 , wherein the pressing step includes using an inflatable portion of a mold member to engage and press the bellow. 3. The method of claim 1 , wherein step of providing the bonding agent includes providing an adhesive as the bonding agent. 4. The method of claim 1 , wherein step of providing the bonding agent includes providing an epoxy as the bonding agent.

Assignees

Inventors

Classifications

  • characterised by being contained in a generally closed space · CPC title

  • Gluing · CPC title

  • by gluing · CPC title

  • Cars · CPC title

  • comprising at least one fluid spring (F16F13/005, F16F13/02, F16F13/04 take precedence) · CPC title

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Frequently asked questions

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What does patent US9636962B2 cover?
An air spring includes a bellow at least partially delimiting at least one working chamber that is constructed and arranged to be filled with compressed air. A guide tube surrounds at least a portion of the bellow. A bonding agent solely fixes a portion of the bellow to the guide tube. A piston is associated with the bellow. The bellow is constructed and arranged to roll with respect to an oute…
Who is the assignee on this patent?
Continental automotive systems inc
What technology area does this patent fall under?
Primary CPC classification B60G11/27. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue May 02 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).