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:
Jan. 30, 1996

Filed:

Sep. 23, 1994
Applicant:
Inventors:

Peter S McGraw, Severna Park, MD (US);

Charles M Kelly, Annapolis, MD (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ;
U.S. Cl.
CPC ...
318626 ; 318135 ; 318687 ; 318466 ;
Abstract

A load limit system is provided for a linear actuator. An interface is athed to the linear actuator and is disposed between first and second spring assemblies. A first sensor senses a first amount of linear compression of the first spring assembly along a first direction. A second sensor senses a second amount of linear compression of the second spring assembly along a second direction. Movement of the linear actuator in the first direction ceases whenever the first amount of linear compression is sensed. Movement of the linear actuator in the second direction ceases whenever the second amount of linear compression is sensed.


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