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:
May. 14, 2013
Filed:
Jun. 20, 2007
Applicants:
Lawrence Byron Johnson, Bellingham, WA (US);
Tadeusz Karabin, Bellingham, WA (US);
Inventors:
Lawrence Byron Johnson, Bellingham, WA (US);
Tadeusz Karabin, Bellingham, WA (US);
Assignee:
Wood Stone Corporation, Bellingham, WA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23M 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A door control mechanism which is attached near the hinge region of a door to bias the door to a closed orientation, and after a prescribed location, bias the door toward an open location to a sufficient degree such that the door is noticeably open. The door control mechanism in one form may have a cam extension that engages a spring member to supply stored energy to and from the spring member to bias the door closed and to bias the door open after a prescribed amount of rotation.