Ring binder

Details Ring binder Ring binder

1999-12-20

2001-01-30

Tsai, Henry (Department: 3722)

Binder device releasably engaging aperture or notch of sheet

Sheet retainer with base or depository

C402S08000L, C402S502000, C402S073000, C281S029000, C281S037000, C281S017000, C281S019100, C281S032000

Reexamination Certificate

active

06179508

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATIONS
None.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
BACKGROUND OF THE INVENTION
This invention relates to ring binders, and more particularly, to a ring binder having a spine section to which different end leafs are attachable so one spine section can be used to make a variety of binders.
Typically a ring binder includes a pair of end leafs the size of which correspond to the size of the sheets of paper held in the binder. The ring binder construction includes the end leafs and spine section to which a binder ring assembly is attached. The binder ring assembly usually includes two or more binder rings and a user operable mechanism for opening and closing the binder rings to store sheets of paper in the binder or remove them from the binder. Heretofore, it has been the practice to make the make the end leafs and spine section from a single piece of material, usually a cardboard material or a single sheet of a plastic. It would be advantageous, however, if it were possible to have a common spine section to which different size end leafs could be attached. It would be further advantageous if the spine section were so constructed that a binder ring assembly could be more easily attached to the binder than has been previously possible.
BRIEF SUMMARY OF THE INVENTION
Among the several objects of the present invention may be noted the provision of a ring binder;
the provision of such a ring binder having a spine section commonly used with different end leafs so a variety of binders could be made using but a single spine construction;
the provision of such a ring binder in which the spine section has opposed edges each of which is formed to receive and hold an end leaf of the binder, the end leaf being permanently held in place once installed;
the provision of such a ring binder in which the spine section has an integrally formed means for attachment of a binder ring assembly to the binder; and,
the provision of such a ring binder in which the end leafs are readily installed to the spine section and the spine section has edges constructed to receive and permanently hold the end leafs in place once attached thereto.
In accordance with the invention, generally stated, a ring binder includes a spine having integrally formed rivets at each end. A binder ring assembly is attached to the spine by snap fitting a cover piece of the assembly onto the rivets. The binder has two outer leafs which are attachable to opposite sides of the spine section to form a completed binder. Each leaf has an inner section of a first thickness and an outer section of a second and greater thickness. A shoulder is formed at the junction between the two sections. The inner section of each leaf fits into a jaws formed on each side of the spine section and extending the length of the spine section. Each set of jaws has serrations that grip the sides of a leaf section to frictionally engage the leaf and hold it permanently in place. Other means of permanently attaching the end leafs can also be used. The binder construction allows end leafs of different widths to be used with a common binder spine to form different size binders. Other objects and features will be in part apparent and in part pointed out hereinafter.


REFERENCES:
patent: 831969 (1906-09-01), Morden et al.
patent: 908597 (1909-01-01), Morden
patent: 973452 (1910-10-01), Morden et al.
patent: 973932 (1910-10-01), Fornoff et al.
patent: 1000649 (1911-08-01), Walker
patent: 1111377 (1914-09-01), Goss
patent: 1231816 (1917-07-01), Vesterling
patent: 1472301 (1923-10-01), Koepsell
patent: 1550050 (1925-08-01), Schade
patent: 1556721 (1925-10-01), Schade
patent: 1652521 (1927-12-01), Eifel
patent: 1761589 (1930-06-01), Schade
patent: 1787958 (1931-01-01), Shade
patent: 2073049 (1937-03-01), Dawson
patent: 2322595 (1943-06-01), Schade
patent: 2377179 (1945-05-01), Pitt
patent: 2543866 (1951-03-01), Panfil
patent: 2831706 (1958-04-01), Miller
patent: 2964336 (1960-12-01), Akimoto
patent: 3074744 (1963-01-01), Pucci et al.
patent: 3111949 (1963-11-01), Duncan et al.
patent: 3132649 (1964-05-01), Gits
patent: 3253603 (1966-05-01), Levitan
patent: 3262454 (1966-07-01), Shillinger
patent: 3270749 (1966-09-01), O'Connell
patent: 3785740 (1974-01-01), Strong
patent: 3809485 (1974-05-01), Beyer
patent: 4307972 (1981-12-01), Errichiello
patent: 4314716 (1982-02-01), Errichiello
patent: 4854763 (1989-08-01), Jonsson
patent: 5100253 (1992-03-01), Cooper
patent: 5116081 (1992-05-01), Mann, Jr.
patent: 5158386 (1992-10-01), Mann, Jr.
patent: 5203590 (1993-04-01), Ranson
patent: 5340071 (1994-08-01), Fox, II
patent: 5611633 (1997-03-01), Whaley
patent: 5622386 (1997-04-01), Young
patent: 5692847 (1997-12-01), Zane et al.
patent: 5810500 (1998-09-01), Whaley
patent: 6000873 (1999-12-01), Burton

Affiliated with

Also associated with

Rating

Ring binder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ring binder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ring binder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2520589