04438578 is referenced by 13 patents and cites 51 patents.

Picture frame components include frame sections each having a channel and communicating cavity that are open at the rear of the frame. At least a region of each frame section adjacent the cavity is deformable and defines a deformable bearing surface. At each frame corner a bracket is provided to hold two adjoining frame sections together. The bracket has two legs with an engaging member on each leg that presents an engaging wall for being received in the frame section cavity and for engaging the deformable region of the frame section. Either the engaging wall or bearing surface, or both, are angled relative to the frame section length. The bracket is inserted in the channels of the adjoining frame sections and each frame section bearing surface is deformed by the engaging wall as the frame sections are forced tightly together.

Title
Picture frame and corner bracket assembly
Application Number
6/487316
Publication Number
4438578
Application Date
April 21, 1983
Publication Date
March 27, 1984
Inventor
Malcolm Logan
Barrington
IL, US
Agent
Dressler Goldsmith Shore Sutker & Milnamow
Assignee
Logan Graphic Products
IL, US
IPC
G09F 1/12
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