Including Means To Attach Sheet Retainer Or Binder Device Patents (Class 402/75)
  • Patent number: 4722627
    Abstract: The present invention provides a clip-on paper holding system for a snap-clamp device made in one piece of plastic. The system uses the snap-clamp device as a paper holder for receiving and holding sheets of punched hole paper. The device is used either with a note pad base to hole punched paper, or with a notebook where the snap-clamp device is mounted to an elongated mounting member that is affixed to the inner surface of the spine of a notebook. One, two, or more devices are used depending on how many holes are formed in the note paper.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: February 2, 1988
    Assignee: Super Glue Corporation
    Inventor: Frank Salacuse
  • Patent number: 4697945
    Abstract: An improved binder for sheet material. The binder includes a cover or backing member formed of paperboard or plastic, and a pair of hinge assemblies are attached to the inner surface of the cover. A standard binding mechanism is interconnected between the hinge assemblies and serves to retain the sheet material. Each hinge assembly includes a metal hinge plate that is secured flatwise to the cover by a plurality of stamped out prongs. Each prong is generally triangular in configuration and is provided with a curved pointed tip. The prongs have a length substantially greater than the thickness of the backing member and when embedded by pressure, the configuration of the prongs causes the prongs to curl within the cover, so that the prongs are completely embedded in the cover and not exposed on the outer surface of the cover.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: October 6, 1987
    Assignee: Majestic Industries, Inc.
    Inventor: John A. Geiger
  • Patent number: 4693626
    Abstract: A folder (20) for paper sheets, especially EDP paper sheets (32), which have at least two spaced punched holes (34) at their lateral margins, is disclosed. A carrier body (21) is provided with resilient line-up pins (36) for accommodating paper sheets (32). Retaining means (38, 40) serve to fixedly secure the line-up pins (36) and the paper sheets (32). The line-up pins (36) are secured with one end thereof to the carrier body (21). The retaining means (38, 40) comprise telescope-type clamping bars (38) for receiving the other ends of the line-up pins (36). The carrier body (21) is an integral injection moulded part which constitutes bottom part (22), back (24) and top part (26) in a stable unit.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: September 15, 1987
    Inventor: Manuel Ferreira-Godinho
  • Patent number: 4681474
    Abstract: An arrangement for handling documents, papers etc., comprising a so-called ring mechanism (1) for co-operation with hole-punched paper sheets, and a support means such as a folder, calendar (18), binder or file (21; 28) or the like. In accordance with the invention there is attached to the side of the ring mechanism (1) remote from the rings ((3) a first fastener part (8) of a so-called burrfastener arrangement, while a second fastener part (9) of the arrangement is attached to the support means ((15; 21; 28). The fastener parts (8,9) are arranged to co-operate with one another in a manner which enables the ring mechanism (1) to be detachably connected to the support means (15; 21; 28).
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: July 21, 1987
    Assignee: Esselte Almanacksforlag AB
    Inventor: Olle Wiberg
  • Patent number: 4630843
    Abstract: A durable binder for holding papers and the like includes exterior and interior cover sheets that are attached to each other by heat sealing to define relatively rigid panels separated by hinge panels. The hinge panels are each characterized by a multitude of minute separate depressed areas in which the cover sheets are connected, the depressed areas being surrounded by intersecting raised areas. The depressed areas can be of varying depth and can define pockets for holding writing instruments and other objects.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: December 23, 1986
    Assignee: Harper House, Inc.
    Inventor: Boyd Willat
  • Patent number: 4594016
    Abstract: A card file holder including a base having outwardly and upwardly divergent card supporting extensions. Pedestals on the underside of the base have angularly orientated surfaces permitting base installation on an upright wall surface or a horizontal surface. An arm assembly includes a pair of card receiving arms having a bridge therebetween at one end. The arm assembly bridge is confined within an opening in the holder base by interengageable surfaces formed on the base and bridge which permit a loaded arm assembly to be inserted into the holder base opening.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: June 10, 1986
    Inventor: Calvin G. Husbands
  • Patent number: 4591187
    Abstract: A device for retaining a book, such as a telephone directory, in a holder or on a flat surface, in order to prevent unauthorized removal or theft of the book. A plurality of pin-like retainer members are mounted in a pair of mounting members in laterally spaced, parallel relation. The number of retainers is determined by the thickness of the book. The pointed ends of the pin-like retainer members are shifted into the ends of the book and the assembly is secured either to the flat surface or to a support bar that is riveted or otherwise secured to the inner surface of the back of the holder. The pin-like retainers are frictionally retained either in a series of laterally spaced slots or bores in the mounting members so as not to be removable therefrom without the use of a tool and a substantial amount of force.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: May 27, 1986
    Assignee: Fortec, Inc.
    Inventors: Richard L. Jeanson, John B. Olson
  • Patent number: 4583877
    Abstract: A ring binder cover is composed of a pair of thermoplastic sheets superimposed in edge-to-edge relation with stiffener insert panels disposed therebetween. The inner edges of the insert panels are spaced apart a distance which is approximately the width of the back panel and hinged portions of the binder. The peripheral edge portions of the two thermoplastic sheets are sealed together and provide a sealed envelope for the stiffener inserts which are disposed therebetween and define semi-rigid back and front cover panels of the binder. A discrete, semi-rigid spine is affixed to the outer surface of the cover in the area between the inner edges of the inserts. The spine has a width less than the distance between the inserts and together define hinges for the binder covers. The spine is composed of a stiffening insert panel encased within a thermoplastic sheath material and a ring mechanism is affixed on the inner surface of the cover opposite the spine.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: April 22, 1986
    Assignee: Dennison National Company
    Inventor: Robert B. Wilson
  • Patent number: 4582442
    Abstract: An elongated hollow rectangular spine or backplate formed of plastic material for supporting and securing ring hardware in a loose-leaf binder has spaced, parallel, front and back walls joined at the edges and a centrally disposed strengthening rib extending between the front and back walls longitudinally for the length of the backplate. The ring hardware is secured to the backplate by inserting plastic rivets through apertures in the ring hardware aligned with counterbored holes in the backplate rib and sonically welding the rivet therein. The rivets and counterbored holes of the backplate rib facilitate the welding operation.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: April 15, 1986
    Assignee: Van der Jagt 1980 Family Trust
    Inventor: David C. Rager
  • Patent number: 4575273
    Abstract: A binder for computer print out paper fits into a standard sized file cabinet. It comprises a series of hinged together panels, two opposite ones of which hold along one edge a pair of rings retained in aligned slots. The rings are capable of movement in two different directions, and such rings hold the paper within the binders.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: March 11, 1986
    Assignee: Arianex Systemse, Societe Anonyme francaise
    Inventor: Jacques Gerriet
  • Patent number: 4561794
    Abstract: An attachment for a folder to enable the removable attachment to the folder of correspondence by a pin with the correspondence being removable with the pin so as to be retained in a bound form when removed from the folder.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: December 31, 1985
    Inventor: John W. Smallwood
  • Patent number: 4560299
    Abstract: A loose leaf presentation folder which has an outer cover with front and rear panels pivotable about a hinge line and an inner binder strip, which may either be a discrete component or part of the cover, includes a pair of narrow panels pivotable about a fold line. If discrete, the strip is affixed within the outer cover with its fold line superimposed on the hinge line of the cover. The opposed outer edge portions of the binder strip are provided with a plurality of transversely-spaced, metallic tabs. The binder strip and the tabs, disposed along one edge thereof, are each provided with a hole therethrough and along the other edge of the binder strip, each of the tabs includes elongated prongs which are bendable to fit through the hole in the opposite edge of the binder strip.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: December 24, 1985
    Assignee: Dennison National Company
    Inventor: Edward Podosek
  • Patent number: 4527923
    Abstract: A looseleaf ring binder for computer paper having perforate longitudinal margins, the binder rings and paper perforations being arranged for passage of the rings selectively through perforations of opposite margins, or perforations of the same margin.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: July 9, 1985
    Assignee: Data Bind Inc.
    Inventor: Morton Waldman
  • Patent number: 4511298
    Abstract: A protective binder for storing and protecting printed or written material normally contained on multiple pages of unbound materials. The binder includes a unitarily formed and foldable semi-rigid member, preferably made of a thermo-formed polypropylene material. The foldable member has a front cover, a back cover, and a rear edge section. Hinge portions are unitarily formed between the front cover and the rear cover and the rear edge section, thereby flexibly interconnecting the front and rear covers to the rear edge section. A clear, elongated, flexible tape is bonded along a central section thereof to the rear edge section. An adhesive is provided along interior portions of the tape for securement to the front and rear pages of materials to be bonded or secured in place within the binder. The tape is free of any adhesive on the outer surfaces thereof which are adjacent the front and rear covers. The pages are securely received by the tape for storage between the front and rear covers.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: April 16, 1985
    Assignee: Moore Business Forms, Inc.
    Inventor: Charles E. Jones
  • Patent number: 4453850
    Abstract: The invention relates to a binder system which includes as a single integral unit a support device for supporting a pair of binder strap securing means as well as suspension means, for suspending the system in either a mode of horizontal filing or lateral filing. In addition, the support device makes provision for a cover sheet to be clamped relative to the device along an edge portion thereof.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: June 12, 1984
    Assignee: Duel International Stationary Co., Ltd.
    Inventor: Dale M Purcocks
  • Patent number: 4445710
    Abstract: A binding for documents, sheets, pouches and other members in which each member is formed with a synthetic resin profile having a web attached to the member and a bead lying along an edge of the respective assembly. The support is formed with a plurality of slots having windows at least at one end thereof through which the beads can be inserted and removed longitudinally and such that the beads are thicker than the widths of the slots but thinner than the widths of the windows.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: May 1, 1984
    Assignee: Jowa
    Inventor: Pierre Borel
  • Patent number: 4444418
    Abstract: A carrying case comprising opposed cover members hinged to a central spine portion. The cover members are adapted to be secured together by a slide fastener to form a closed case or laid open to allow viewing of one or more pages of a folio arrangement supported by a frame member which is secured within the case on the spine portion by self-adhering fastener means of the Velcro type. The folio assembly includes an elongated flat metal or plastic frame member which is adapted to support one or more elongated elastic folio support rods for pivotally supporting the folio pages to be turned in the manner of turning pages of a book. The support rods may be elastically deflected to insert separate folio pages in or remove separate folio pages from the folio assembly frame or the entire folio assembly may be quickly inserted in and removed from the case, as desired.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: April 24, 1984
    Inventor: Stanley Goldstein
  • Patent number: 4395153
    Abstract: A file, consisting of a cover and at least two securing members, each securing member consisting of an oblong, narrow lacing portion, pointed at one end and connected at its other end to a foot portion which is short and wide with respect to the lacing portion; said cover being connected to a support sheet, wherein at least two inserting openings, which are wide with respect to the foot, and pertaining to each inserting opening, at least one protruding opening and one securing opening are provided; said protruding openings and securing openings being narrower than the foot of the securing member so that the securing member is insertable and lacable with its point through the inserting opening and subsequently through the protruding opening resulting in that the foot will be hooked on the support sheet at the protruding opening, whereas after possibly lacing the lacing portion through sheet material to be filed in the file, the point of the lacing portion is insertable through the securing opening; the distanc
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: July 26, 1983
    Assignee: Samson Efficiency B.V.
    Inventor: Huibertus Schimmel
  • Patent number: 4352583
    Abstract: This invention in general relates to improvements in telephone directory binders for telephone books used in public telephone facilities and like books, where the books and binders are subjected to hard use and often are the target of vandalism and theft; and to improvements in lanyards for hanging the binders, the securing thereof in the binders, and improved wall mounting members to secure the opposite ends of the lanyards on a wall or other surface, e.g., adjacent the public telephone.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: October 5, 1982
    Inventor: Dominic R. Errichiello
  • Patent number: 4314716
    Abstract: Book binders with a front cover panel, a rear cover panel, and a spine which is a cross wall connected along opposite longitudinal edges thereof by living hinges to said front cover panel and said rear cover panel; a first, rectangular strip, having three free sides, mounted on and projecting substantially at a right angle to the spine near a living hinge, a second, rectangular strip, having three free sides, mounted on and projecting substantially at a right angle to the spine near the other living hinge, said strips being substantially parallel, whereby edge portions of pages of a book may be inserted between said opposed strips and mounted in said book by adhesive or by stitching, stapling or the like through said strips and said edge portions.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: February 9, 1982
    Inventor: Dominic R. Errichiello
  • Patent number: 4295747
    Abstract: One piece, molded, looseleaf books having a plastic spine and front and rear, plastic cover panels integrally molded with the spine and hingedly connected to the spine by living, plastic hinges, said spine having on its inner face a plurality of tubular posts on which a snap-ring binder is mounted and is secured thereon by drive or clinch rivets pressed into the tubular posts.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: October 20, 1981
    Inventor: Dominic R. Errichiello
  • Patent number: 4294558
    Abstract: Weatherproof portfolios which are integral moldings of a thermoplastic polymer forming an elongated spine having a first side panel and a second side panel respectively hingedly mounted on respective, opposite, longitudinal edges of said spine, each panel having two integrally molded side flanges connected by an integrally molded top flange to form two, respective, substantially identical enclosures on respective panels, the longitudinal edges of said two side flanges and said top flange of the respective enclosures being aligned when said side panels are swung about their hinges from an open position toward each other and into abutting contact in the closed position, and grooves in the longitudinal edges of the side and top flanges on one side panel and longitudinal mating tongues or ribs on the longitudinal edges of the side and top flanges of the other side panel to provide substantially weathertight seals when the portfolio is closed.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: October 13, 1981
    Inventor: Dominic R. Errichiello
  • Patent number: 4294469
    Abstract: Book binders and books made with said binder, said binders comprising integral moldings of a spine having a substantially planar, longitudinal panel and a front cover panel and a rear cover panel respectively hingedly mounted on opposite, longitudinal sides of said spine; paper pages positioned in said binder between said cover panels, and one edge of said pages being fastened by staples or stitching to said planar panel in said spine; a rectangular, longitudinal cavity in the outer, rear face of said spine, the bottom wall of said cavity being said substantially planar panel, and a rectangular spine insert of mating dimensions with said cavity being mounted in said cavity and covering the bottom wall and any parts of said stitching or stapling which are exposed on said planar panel.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: October 13, 1981
    Inventor: Dominic R. Errichiello
  • Patent number: 4289331
    Abstract: This disclosure involves a compiler-binder having a rigid back spine and covers hinged thereto, wherein the spine is provided with transverse openings for receiving projections of clips securable to the backs of each of a plurality of periodicals to lock the same against vertical movement and effectively bind them in a manner closely simulating a rigidly bound book with a hard board cover, without the necessity for resorting to customary bookbinding techniques.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: September 15, 1981
    Inventors: Alexander E. Finger, Fay Finger
  • Patent number: 4281940
    Abstract: A loose-leaf binder makes use of a hinged back comprising parallel hinge leaves pivotally attached to each other at adjacent edges. There is an interlock at one end consisting of resilient flanges normally interlocked in overlying relationship, but releasable by tilting one flange away from the other. Rings which extend through the holes in sheets of paper may be individually mounted in a retention track so that they can be varied as to spacing and also varied as to the number of rings made use of.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: August 4, 1981
    Inventor: Gwang H. Rhee
  • Patent number: 4255065
    Abstract: Binders for telephone directories subjected to hard use, vandalism and theft, as in public telephone facilities and the like, and having a front cover panel, a rear cover panel, and a spine along whose opposite longitudinal edges the front and rear cover panels respectively are hingedly connected by living hinges, a thin metal member with oppositely extending wings adapted to lie between and against the bound edges of the pages of the directory and a thin-edged tongue adapted to penetrate the bound edges of said pages and project through a slot in the spine, a hole through the spine-projecting part of said tongue, and ring means coacting with said hole and said spine for locking said tongue and said wings in book-securing position to prevent removal of said telephone directory from said binder, said spine preferably having a thick segment with a transverse passage aligned with the hole in said tongue, and said ring means being passed through said passage and said hole to secure said metal member on said spine
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: March 10, 1981
    Inventor: Dominic R. Errichiello
  • Patent number: 4222679
    Abstract: A loose-leaf binder mechanism comprises top and bottom covers. A backbone connects the top and bottom covers. A binding mechanism includes a detachable longitudinal bar. The detachable longitudinal bar has a projection with a groove thereon extending therefrom. A channel guide is affixed to one of the covers. A flat latching bar is reciprocally received within the channel guide for cooperating with the projection to join the binding mechanism to one of the covers. An indented structure on the channel guide substantially restricts the movement of the latching bar to reciprocal movement.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: September 16, 1980
    Assignee: American Loose Leaf Corporation
    Inventor: Felix Luogameno
  • Patent number: 4222190
    Abstract: A device for holding flip cards is disclosed. The device includes a cover which is hingedly mounted to the compartment in which the cards are contained. Rings secured to the cover extend through holes in the cards, and permit the cards to be turned in the manner of the pages of a book. A cover flap extension laterally displaces the cards when the cover is opened.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: September 16, 1980
    Assignee: Oxford Pendaflex Corporation
    Inventor: Jack Solomon
  • Patent number: 4219951
    Abstract: A file folder having a fastener mechanism on the inside and provided with a wide back for carrying identification markings and covers extending from the wide back. The folder is made of one piece of hard cardboard on its open side, and has an additional narrow identification back. This narrow identification back, as well as the wide identification back, is connected by folding and bending with an adjacent cover each, through a side edge strip connected in one piece and produced by folding and bending. The side edge strip reaches around the free edge of the other folder cover and is disconnectably attached to it. The side edge strip of the additional narrow identification back has, on its free edge, a projecting insertion tongue, and the facing folder cover has an associated insertion slot.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: September 2, 1980
    Assignee: Dipl. Ing. A. Berglein
    Inventor: Otto Schmidt
  • Patent number: 4180340
    Abstract: A binder for carpet samples has a sturdy slotted anchor attached to the binder back with the anchor raised from the binder back in the region of the slot. A binder post has a head at one end for engagement within the slot by a swinging movement of the post relative to the anchor. A pair of lugs on the post and post head coact with the anchor slot to limit rotation of the post during installation. The end of the post away from the anchor is threaded and receives a nut placed above a top flap of the binder. Strength, durability, convenience and economy of manufacturing are featured.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: December 25, 1979
    Assignee: National Service Industries, Inc.
    Inventor: Billy Q. Cosby
  • Patent number: 4174909
    Abstract: A binder is provided manufactured in a single step operation from a single sheet of material and comprises front and back covers, a backing intermediate the two, and fastening means manufactured in one of the back covers and slot arrangements disposed adjacent to, or in, the backing to lock the fastening means. The binder is thus very inexpensive to manufacture and is easily used by industry in large quantities.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: November 20, 1979
    Inventor: Gerhard Jahn
  • Patent number: 4127340
    Abstract: A binder mechanism having two longitudinal bars on which the page holding prongs are mounted. The bars are interconnected by two rectangular movable hinge members situated proximate opposite ends of the bars. The hinge members which have two right angle sections interconnected by a piano hinge are rotatably connected to the bars and define a rectangular box-shaped structure with the bars when the binder is in the locked position. Both hinge members and bars have a thin rectangular cross-section, the long dimension of which is vertically oriented when the hinge members and the bars are in the locked position. The hinge members pivot about pins which interconnect the hinge members to the bars to rotate to an open position with the piano hinge rotated 90.degree.. One hinge member then rotates about the piano hinge to open the binder so that the longitudinal bars are in a horizontal position and the prongs are vertically disposed. In this position, pages can be removed and inserted.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: November 28, 1978
    Assignee: American Loose Leaf Corp.
    Inventor: Robert E. Almgren
  • Patent number: 4113394
    Abstract: An inexpensive polymeric device for releasably retaining a stack of perforated paper, including a pair of rake-like members each comprising a rail supporting projecting studs. The rake-like members are assemblable by inserting studs on each through the paper perforations from opposite sides of the stack and into sockets formed on the other rail to form a ladder-like assembly engaged with the paper. The rails on the ladder-like assembly are slid into close fitting channels defined on a backing strip which extends around the spine edge of the stack to keep the rake-like members in engagement, and are retained therein by end portions of the rails adapted to engage over the ends of the channels. Subsequently a user can squeeze together on cam surfaces on the end portions of the strips to simultaneously disengage them from the ends of the channels and move them into the channels so that the ladder-like assembly can be slid out of the backing strip and disassembled.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: September 12, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Joe D. Giulie
  • Patent number: 4098443
    Abstract: A sample book has an internal spine directly connected to the pages of the book. Mounting projections from the internal spine project through the cover of the book for direct attachment to a pivotally mounted carrying handle.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: July 4, 1978
    Assignee: Eastern Bindery, Inc.
    Inventors: Manus Coen, Joseph Bonfield
  • Patent number: 4019823
    Abstract: A ring binder has a ring mechanism on the inside of the binder spine and two boards covering the inside surfaces of the binder covers which are hinged to the spine, the boards forming extensions which extend the covers inwardly close to the rings when the binder is open to provide flat writing supports, and the binder has straps interconnecting the covers and supporting the extensions which extend the covers inwardly.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: April 26, 1977
    Assignee: Robert Krause KG
    Inventors: Heinz Kleinert, Karl-Heinz Schudy
  • Patent number: 4011018
    Abstract: A linking arms mechanism for a prong type loose-leaf paper binder having spacer bars with recessed portions within which curved spaced prongs are fixed and integral raised shear stops are formed which cooperate with a hinge assembly.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: March 8, 1977
    Assignee: Royal Business Machines, Inc.
    Inventor: Billy J. Doolittle
  • Patent number: 4000951
    Abstract: A loose leaf binder which can be moulded as an integral structure from resilient plastics, e.g. polypropylene has posts which lie in openings in a side portion of the binder and are pivotable into the upright position. Projections on the posts or the side portion adjacent the pivotal connection serve to maintain the posts releasably in the upright position. The free ends of the posts are engageable in openings in the other side portion and movable locking members are provided to positively lock the ends of the posts in these openings.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: January 4, 1977
    Inventors: Kenneth Malcolm Agnew, Charles Henry Pentland Denroche, Roy Hewlett
  • Patent number: 3972632
    Abstract: An expandable cover for books is provided for storing, protecting and labeling data processing sheets, accounting records, and the like, comprising a pair of cover boards hinged to corner members which carry openings for receiving sheet attaching means, spine elements for the back of the book cover which have at least one opening for receiving a back or spine protecting element therein, or alternatively, an expandable element such as a foldable material, stretchable material, or further alternatively, a slot in one of the spine elements which slidably engages the second spine element by means of a rivet like member.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: August 3, 1976
    Assignee: Book Covers, Inc.
    Inventor: Leewood C. Carter
  • Patent number: 3958886
    Abstract: A looseleaf binder mechanism having a pin-and-slot mounted shiftable latching slide provided with novel positive detenting means comprising an elastomeric washer mounted on the pin and cooperable with a protuberance formed on the latching member intermediate the ends of the slot, to thereby hold the latching member detented in its respective shifted end positions.
    Type: Grant
    Filed: May 13, 1974
    Date of Patent: May 25, 1976
    Assignee: Royal Business Machines, Inc.
    Inventor: Roy H. Price
  • Patent number: 3950107
    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.
    Type: Grant
    Filed: June 26, 1974
    Date of Patent: April 13, 1976
    Assignee: The Mead Corporation
    Inventor: Paul E. Seaborn