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.:
Date of Patent:
Aug. 25, 2020
Filed:
Mar. 29, 2016
Applicant:
Stannah Stairlifts Limited, Hampshire, GB;
Inventors:
Gavin Scott Pugh, Farnham Surrey, GB;
Paul Alexander Cook, Shrewton Wiltshire, GB;
Assignee:
Stannah Stairlifts Limited, Hampshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 9/08 (2006.01);
U.S. Cl.
CPC ...
B66B 9/0807 (2013.01); B66B 9/08 (2013.01); B66B 9/0853 (2013.01);
Abstract
The invention provides a method and apparatus for continuously adjusting the speed of a stairlift in response to a number of operating parameters such as battery voltage and motor current draw. The method preferably further includes monitoring the speed of a reference point on a stairlift chair and comparing this with a maximum permissible speed.