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US 3,950,107 AGranted
Binder ring
AssigneeThe Mead Corporation
InventorPaul E. Seaborn
Life of this patent
Estimating the term…
Abstract
A one-piece, molded plastic binder ring that may be formed with an integral post for attaching the binder ring to the spine of a loose leaf cover. The binder ring includes a T-shaped socket in its base which receives a cross bar of a flexible strap molded integrally with the base, and locking projections are formed in the socket to lock the strap cross bar in a pocket formed in lower surface of the base of the binder ring.
Claims5
A binder construction comprising:
- a. a molded plastic base having upper and lower surfaces and a continuous closed perimeter joining said upper and lower surfaces,
- b. a flexible strap formed integrally with said base, projecting from a side thereof and terminating in a cross bar extending perpendicularly to said strap,
- c. means defining wholly within said perimeter of said base a socket for receiving a portion of said flexible strap and said cross bar,
- d. said socket having a substantially rectangular configuration as viewed from the bottom of said base,
- e. a pair of spaced parallel legs disposed within said socket,
- f. said legs having upper surfaces thereof substantially flush with said upper surface of said base and lower surfaces thereof positioned within said socket inwardly from said lower surface of said base,
- g. said legs extending from the side of said socket opposite the side of said base from which said strap projects,
- h. said spaced parallel legs terminating short of the side of said socket opposite the side from which they extend and defining thereby a substantially T-shaped configuration in said base as viewed from the top thereof,
- i. locking means projecting downwardly from said lower surfaces of said legs adjacent outer ends thereof toward the plane of said lower surface of said base,
- j. said cross bar being no longer in length than the width of said socket measured parallel to said cross bar but longer then the spacing between said spaced parallel legs,
- k. the spacing between said spaced parallel legs being sufficient to receive therebetween that portion of said strap adjacent said cross bar but being substantially less than the length of said cross bar so that said cross bar engages said locking mean when disposed under said legs, and
- l. securing means on said base for securing said base to a cover, said securing means being positioned intermediate said socket and said strap.
9 more elements
Dependencies are inferred from the claim text.