The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 14, 2025

Filed:

Apr. 17, 2023
Applicant:

Advanced Suspension Technology Llc, Northville, MI (US);

Inventor:

Stefan Deferme, Heusden-Zolder, BE;

Assignee:

Advanced Suspension Technology LLC, Northville, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/34 (2006.01); F16F 9/19 (2006.01); F16F 9/516 (2006.01); F16K 15/02 (2006.01); B60G 13/08 (2006.01); B60G 17/08 (2006.01);
U.S. Cl.
CPC ...
F16F 9/34 (2013.01); F16F 9/19 (2013.01); F16F 9/516 (2013.01); F16K 15/026 (2013.01); B60G 13/08 (2013.01); B60G 17/08 (2013.01); B60G 2202/24 (2013.01); B60G 2204/62 (2013.01); B60G 2206/41 (2013.01); B60G 2500/11 (2013.01); B60G 2800/162 (2013.01); F16F 2222/12 (2013.01); F16F 2228/066 (2013.01); F16F 2232/08 (2013.01);
Abstract

A damper including a tube, a piston, and a base line valve. The base line valve arranged in fluid communication with at least one of a first and second working chamber of the tube. The base line valve includes a housing, a plug slidably disposed in the housing along a valve axis between open and closed positions, and a spring. The plug includes a plug nose extending through an opening of the housing. The plug nose includes a first annular surface and a second annular surface. The first annular surface being sealingly engaged with a seat of the housing when the plug is in the closed position. The second annular surface being positioned radially inward of the seat by a first dimension when the plug is in the closed position and by a second dimension greater than the first dimension when the plug is in the open position.


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