Lockable ring binder mechanism

Details Lockable ring binder mechanism Lockable ring binder mechanism

1992-03-31

1993-10-26

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 41, B42F 1326

Patent

active

052559912

ABSTRACT:
A ring binder locking mechanism has a pair of toggle blades abutting edge to edge with one another within an elongate spring housing. A booster trigger is mounted at each end of the housing for locking the blades and their half rings in a closed position. The trigger is of one-piece metal construction and includes a pair of locking arms engagable with the blades to lock them with the half rings closed.

REFERENCES:
patent: Re18806 (1933-04-01), Dawson
patent: 1787957 (1931-01-01), Schade
patent: 1913700 (1933-06-01), Dawson
patent: 1913701 (1933-06-01), Dawson
patent: 1927113 (1933-09-01), Dawson
patent: 1953981 (1934-04-01), Trussell
patent: 2030473 (1936-02-01), Schade
patent: 2056812 (1936-10-01), Unger
patent: 2061676 (1936-11-01), Schade
patent: 2105235 (1938-01-01), Schade
patent: 3098490 (1963-07-01), Wance
patent: 3101719 (1963-08-01), Vernon
patent: 3884586 (1975-05-01), Michaelis
patent: 4522526 (1985-06-01), Lozfau
patent: 4571108 (1986-02-01), Vogl
patent: 4722627 (1988-02-01), Salacuse
patent: 4813803 (1989-03-01), Gross
patent: 4830528 (1989-05-01), Handler
patent: 4832521 (1989-05-01), Handler
patent: 4904103 (1990-02-01), Im
patent: 4919557 (1990-04-01), Podosek
patent: 5018896 (1991-05-01), Vanni
patent: 5067840 (1991-11-01), Cooper et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-954427