Steel piston with filled gallery
US-2015315995-A1 · Nov 5, 2015 · US
Air spring piston with integrated sealing
US9895777B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9895777-B2 |
| Application number | US-201514880730-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2015 |
| Priority date | Oct 13, 2014 |
| Publication date | Feb 20, 2018 |
| Grant date | Feb 20, 2018 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
An air spring for air suspension system comprises a piston assembly and a damper assembly where the piston assembly is spaced apart from the damper assembly to at least partially define an air chamber. A seal is molded with piston walls to form an integrated piston assembly. The seal includes at least one sealing lip extending radially inward from the piston assembly at an angle that is non-perpendicular to an axis of the damper and the at least one sealing lip contacts the damper assembly when the piston assembly and the damper assembly are assembled together to seal the air chamber.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a piston assembly, comprising: forming a seal using an injection mold form; forming piston walls at least partially surrounding the seal with the injection molding form to create an integrated piston assembly; assembling the piston around a damper assembly, such that an air chamber is at least partially defined by the piston assembly and the damper assembly; and wherein a sealing lip extending from the seal is in contact with the damper assembly to seal the air chamber. 2. The method of claim 1 , further comprising increasing the force on the sealing lip toward the damper assembly with the air in the air chamber.
Assignees
Inventors
Classifications
on a damper · CPC title
comprising a gas spring contained within a flexible wall, the wall not being in contact with the damping fluid, i.e. mounted externally on the damper cylinder · CPC title
the damper being connected to the stub axle and the spring being arranged around the damper · CPC title
Sealings for elements other than pistons or piston rods, e.g. valves · CPC title
- B23P15/10Primary
pistons · CPC title
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Frequently asked questions
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- What does patent US9895777B2 cover?
- An air spring for air suspension system comprises a piston assembly and a damper assembly where the piston assembly is spaced apart from the damper assembly to at least partially define an air chamber. A seal is molded with piston walls to form an integrated piston assembly. The seal includes at least one sealing lip extending radially inward from the piston assembly at an angle that is non-per…
- Who is the assignee on this patent?
- Continental automotive systems inc
- What technology area does this patent fall under?
- Primary CPC classification B23P15/10. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 20 2018 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).