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.

Patent No.:

US 7454909 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 25, 2008

Filed:

Feb. 07, 2006
Applicants:

Stephen P. Buerger, Albuquerque, NM (US);

Neville Hogan, Sudbury, MA (US);

Inventors:

Stephen P. Buerger, Albuquerque, NM (US);

Neville Hogan, Sudbury, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 7/10 (2006.01); F15B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An impedance shaping element (or more simply, an impedance shaper) physically alters or shapes the mechanical impedance of a drive system as it appears from an interface and facilitates use of feedback control to improve performance by altering or shaping a dynamic coupling between an interface and a control system. For example, the impedance shaper can be used to adjust a coupling value from a first value to a second different value. In one embodiment, an impedance shaper controls the compliance, damping and inertia characteristics of fluid within a fluid path.


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