Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path – Travel in plane perpendicular to axis of rotation
Patent
1997-02-25
1998-09-22
Howell, Daniel W.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer travels arcuate path
Travel in plane perpendicular to axis of rotation
402 37, 402 38, 402 42, B42F 304
Patent
active
058105000
ABSTRACT:
A ring binder (10) comprises a pair of leaves (28, 30) hingedly connected to each other for relative movement therebetween. A plurality of spaced binder rings (22, 24, 26) are each formed of a pair of ring halves (22a, 22b, 24a, 24b, 26a, 26b). One end (22c, 22d, 24c, 24d, 26c, 26d) of each ring half is attached to one of the leaves. Movement of the leaves thus moves the opposite end of the respective ring halves out of and into contact with each other so to open and close the binder. A shield (20) covering the leaves has spaced openings (42) through which the ring halves extend. The shield has a plurality of raised sections (44, 46, 48) extending transversely of a longitudinal axis of the shield with one of the raised sections being formed at each binder ring location. Another raised section (52) extends axially of the longitudinal axis of the shield and intersects each of the transversely extending raised sections. Both the axially extending raised section and the transversely extending raised section are being formed in the shield to increase the strength of the shield. Detends (62, 64) of a geometric shape are formed in the longitudinally extending raised section to further strengthen the shield.
REFERENCES:
patent: 794290 (1905-07-01), Ford
patent: 1625752 (1927-04-01), Sterling
patent: 3246652 (1966-04-01), Lang
patent: 4368995 (1983-01-01), Cohen
patent: 5348412 (1994-09-01), Fuller
patent: 5577852 (1996-11-01), To
patent: 5618122 (1997-04-01), Constantine
Bhargava Adesh
Howell Daniel W.
US Ring Binder Corp.
LandOfFree
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.
Profile ID: LFUS-PAI-O-1617144