公开(公告)号：US3582224A

公开(公告)日：1971-06-01

申请号：US3582224D

申请日：1968-12-13

Applicant: NAT BLANK BOOK CO

Inventor： SCHADE FRANK STANLEY

IPC: B42F13/02 ,  B42F3/00 ,  B42F13/06

CPC classification number: B42F13/02

Abstract: A binding strip and post clamp construction for expandable looseleaf binders utilizing posts of a stiffly flexible rodlike character, comprising a folded two-ply strip of resilient coverboard material with registrable holes and a clamp of stiff springy material slidably engaged on the strip, a lower plate of the clamp underlying the strip, a bight portion engaging the fold thereof, and a parallel upper plate having a free edge reversely hooked to receive the edge of the upper ply for guided clamp movement and to frictionally grip said lower ply between the plates, the upper plate also having a post receiving channelled section for sliding over terminal end portions of posts flexed against the strip. The clamp is slidable into position endwise of the strip.

公开(公告)号：US3606557A

公开(公告)日：1971-09-20

申请号：US3606557D

申请日：1968-12-03

Applicant: NAT BLANK BOOK CO

Inventor： SCHADE FRANK STANLEY

IPC: B42F13/00 ,  B42F13/26 ,  B42F3/02

CPC classification number: B42F13/0086 ,  B42F13/26

Abstract: AN ARCH-TYPE RING BINDER WITH COVER MEMBERS AND HINGED THERETO AN ASSEMBLY OF HINGEDLY CONNECTED BACK PANEL SECTIONS COMPRISING OPPOSED SIDE PARALLEL SECTIONS AND A CONNECTING PANEL SECTION, AN ARCHED SPLIT RING LOOSE LEAF TOGGLE MECHANISM FIXED ON ONE SIDE PANEL AND MEANS ON ONE OF SAID OTHER BACK PANEL SECTIONS, PREFERABLY THE OTHER SIDE PANEL SECTION, FOR RELEASABLY LOCKING THE ARCHED RINGS THERETO, SAID BINDER WITH THE RINGS IN LOCKED CONDITION PROVIDING A POST BINDER TYPE ASSEMBLY WITH A LOOSE LEAF RING MECHANISM, AND WITH THE RINGS IN UNLOCKED CONDITION HAVING THE OPERATIONAL ADVANTAGES AND USEFULNESS OF A RING BINDER TYPE OF LOOSE LEAF UNIT.

公开(公告)号：US3592344A

公开(公告)日：1971-07-13

申请号：US3592344D

申请日：1968-12-26

Applicant: NAT BLANK BOOK CO

Inventor： SCHADE FRANK STANLEY

IPC: A47B65/00 ,  A47B63/00

CPC classification number: A47B65/00 ,  A47B43/02 ,  A47B47/00 ,  A47B2220/0083 ,  B42F7/145

Abstract: A collapsible folding bookcase construction for separate desk or tabletop use and as a sectional unit to be releasably assembled with like units, a foldable unit having hinged back, side, and bottom panels and an assembly or connector flap, the side panels having recessed fastener means for joining like units side-byside and the panels and flap being foldable into overlying relation against each other for flat compact storage or shipping purposes.