Retainer for art frame

Card – picture – or sign exhibiting – Picture frame – Picture retainer

Patent

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Details

40790, A47G 116

Patent

active

056599900

ABSTRACT:
A retainer for securing artwork in a picture frame includes a spring capable of engaging all four side rails of a picture frame in compressive fashion. The spring is formed in the configuration of a four pointed star, each point of the star joined to an adjacent point by a pair of diverging, arcuate, concave arms. All of the points and the joining arms are disposed in a common plane. The entire star configuration is formed of spring wire or the like, and is preferably formed in integral, unitary fashion. The points of the star are each formed by a convex bend in the spring wire, the convex bend having a radius significantly smaller than the radii of any of the linking arms of the star. At each point the apex is ground or otherwise formed to define a sharpened edge which penetrates the picture frame material. The star is dimensioned to be slightly larger that the length and width of the inner opening of the picture frame. The relatively large radii of the linking arms imparts a resilient flexibility to the star, so that the star may be deformed and compressed to fit within the opening of the back of the picture frame. The star-shaped device then springs outwardly, forcing the sharpened edges of the points into the inner surfaces of the frame. The retainer is placed so that it impinges directly on the exposed surface of the artwork assembly, so that the artwork is maintained in impingement against the glazing of the picture frame. This engagement will be maintained securely and indefinitely, or may be selectively removed and replaced with little effort.

REFERENCES:
patent: 648523 (1900-05-01), Pierce
patent: 2632971 (1953-07-01), Manczek et al.
patent: 3180388 (1965-04-01), Newcomer, Jr. et al.
patent: 4045898 (1977-09-01), Reinhardt
patent: 4270287 (1981-06-01), Gimbel
patent: 4466206 (1984-08-01), Meadows
patent: 4704814 (1987-11-01), Astolfi
patent: 4953312 (1990-09-01), Astolfi
patent: 4980983 (1991-01-01), Champley
patent: 5052136 (1991-10-01), Poggiolini

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