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:
Sep. 14, 1999
Filed:
Jul. 07, 1998
Ralph W Dingle, Farmington Hills, MI (US);
Other;
Abstract
A method of assembling a poster frame made from a plurality of frame sections, each frame section having a base member and cover member rotatably fastened together. One or more flat metal spring biasing members having a first opposed pair of smooth edges and a second opposed pair of sawtooth or irregular edges are positioned between the rotating cover and base members. The spring members are first positioned with the smooth edges in contact with the rotating members until they are aligned, and then with the sharp edges in contact with the members. The projections on the irregular edges of the spring members are preferably pointed and embed in the metal channels of the cover and base members and dig grooves therein, preventing the cover and base member from sliding longitudinally relative to one another. Various configurations of toothed and pointed members can be utilized on the opposed irregular edges of the spring biasing member. Preferably, the irregular edges have one or more flat areas in order to prevent the spring members from embedding too deeply in the channels in the cover and base members.