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US 4,027,413 AGranted
Clip for retaining a canvas stretcher frame in a decorative picture frame
AssigneeMcNeill Favia Co.
InventorEarl J. Moede
Life of this patent
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AssigneeMcNeill Favia Co.
InventorEarl J. Moede
Estimating the term…
A clip, two or more of which can be employed to retain a canvas stretcher frame within a decorative picture frame. Canvases are typically fixed to a frame formed of a plurality of stretcher bars having rectangular cross-sectional shapes, such frame being adapted for placement into a rabbet groove at the rear of the decorative frame. The disclosed clip has a main body of a length somewhat greater than the width of the stretcher bars. Extending from one end of the main body and integral therewith is a leg having at least one outward projecting point which is adapted to pierce the surface of the decorative frame that defines the rabbet groove. The main body extends across the rear surface of the stretcher bar and has a second leg which resiliently engages the inner edge of the stretcher bar as to retain the clip in place, which in turn retains the stretcher frame within the decorative frame.
An article of manufacture comprising a strip of resilient material having an elongate main body, a first leg extending from one end of the body and a second leg extending from the opposite end of the body, said first leg being generally normal to said main body and having at the distal end thereof at least one point extending outward therefrom in general parallelism with said main body, the material having sufficient strength that the point is substantially immovable relative to said first leg, said second leg having a resiliently deformable portion for effecting frictional engagement with a surface of a rigid bar disposed intermediate said first and second legs, said article of manufacture affording installation of a first polygonal canvas stretcher frame into a second decorative frame which has a rabbet groove for receiving said first frame thereinto, said second frame being proportioned so that a clearance space is defined between the outer edge of said first frame and a surface of said rabbet groove which clearance space is less than the extent of said point, said first frame being formed of stretcher bars having a width greater than the distance between said first leg and said resiliently deformable portion and a thickness greater than the length of said first and second legs so that said point can be introduced into said clearance space and the article can be rotated to cause said point to be pierced into a portion of said second frame defining said rabbet groove and to bring said main body against the rear surface of said stretcher bar there to be retained by frictional engagement between said resiliently deformable portion on said second leg and an edge surface of said stretcher bar remote from said rabbet groove.
A clip for securing a rigid bar having a generally rectangular cross sectional shape to a member having a rabbet groove therein, the rabbet groove having a rearward facing surface and an inward facing surface perpendicular to the rearward facing surface and the clip acting to retain the bar in contact with the rearward facing surface, said clip comprising a strip of resilient material having an elongate main body, a first leg extending generally perpendicularly from one end of the body and a second leg extending generally perpendicularly from the opposite end of the body so as to receive said bar therebetween, said first leg being generally normal to said main body and having at the distal end thereof at least one point extending outward therefrom in general parallelism with said main body and substantially immovable relative thereto for piercing entry into said inward facing surface, said second leg having a resilient portion for effecting frictional engagement with said bar when said bar is received between said legs so as to retain said point in piercing relation to said inward facing surface.
A method for retaining a canvas stretcher frame into a rabbet groove in the rear of a decorative frame, which rabbet groove has a rearward facing surface and an inward facing surface perpendicular to the rearward facing surface, the method comprising the steps of:
Dependencies are inferred from the claim text.