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 8485508 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 16, 2013

Filed:

May. 25, 2010
Applicants:

Philip Newman, Boca Raton, FL (US);

Richard Thaw, Boca Raton, FL (US);

Inventors:

Philip Newman, Boca Raton, FL (US);

Richard Thaw, Boca Raton, FL (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A mechanical hand held door opener device, light in weight and operable in any orientation including being inverted, for generating substantial door-opening force with a minimum effort from a user. When the user rotates the handle, he or she activates the unit by moving the shaft that interlocks with the first and second bevel gears. Since the second gear is fastened to the central lead screw, its rotation causes the rotation of the screw. The rotation of the screw then advances or retracts, depending on the clockwise or anti-clockwise rotation; and the inner platform and the four columns attached to the inner platform moves inwardly or outwardly of the outer platform.


Find Patent Forward Citations

Newman, Philip. (2013). Mechanically operated hand-held forcible entry device (U.S. Patent No. 8485508). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8485508

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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