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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7810222 | Method for protecting a connection interface in a computer-docking assembly A method for protecting a connection interface in a computer-docking assembly in which a computer-support assembly is partially rotated about an arm assembly while moving the computer-support assembly toward a connection interface of the base station. The computer-s... | 10/12/2010 |
| 7757365 | Method for securing frame halves of a frame assembly with a clip structure A method for securing two frame halves of a frame assembly, including providing a pair of frame halves each having an axially extending attachment rib. The frame halves are temporarily secured for storage and transport by detachably clipping the attachment ribs toge... | 07/20/2010 |
| 7246422 | Feeding unit for engaging element metallic linear material in continuous manufacturing apparatus for fastener stringer The invention provides a feeding unit for a metallic linear material having an irregular shaped section applicable to a continuous manufacturing apparatus for a fastener stringer, the feeding unit comprising the seventh and eighth rollers rotatably supported at thei... | 07/24/2007 |
| 7216678 | Self-curling sleeve A substrate including a plurality of monofilaments, or a combination of monofilaments and multi-filament yarns oriented in perpendicular directions, has a tendency to curl around a central space. When all monofilaments are used, the monofilaments along one direction... | 05/15/2007 |
| 7204006 | End-stop for zippered resealable closure A method for providing an end-stop for a slider on a resealable thermoplastic bag is provided. The resealable thermoplastic bag includes a profile track having a first side panel and a second side panel. A clip having first and second legs is made to straddle the pr... | 04/17/2007 |
| 7200911 | Methods for applying sliders to reclosable plastic bags Methods are provided for making slider-operated fasteners for use in reclosable plastic bags using at least a double index and dual unit operations. The methods involve forming two preseals, forming two notches within the preseals, applying two sliders into the prev... | 04/10/2007 |
| 7100487 | Punch device for creating a guide notch in a polymeric fastener attached to a plastic package A method and apparatus for punching a guide notch in a polymeric zipper having a male and female track with respective fins. The method includes sliding the zipper into position in a punch housing and punching a guide notch into the zipper. The guide notch is define... | 09/05/2006 |
| 7082649 | Metal wire rod for forming slide fastener coupling elements and slide fastener coupling element formed from the same metal wire rod In a Y bar for forming coupling elements, an opening angle of a pair of right and left leg parts is narrower than that of the ordinary ones. Plural bent portions, which are bent inward, are formed successively in an extending direction of the leg parts in a range fr... | 08/01/2006 |
| 6979289 | Insertion apparatus for attaching sliders onto zipper bags and film A slider (10), a slider insertion apparatus (50) and a method for inserting the slider (10) on an interlocked fastener or zipper (25) of a reclosable bag (44). A loading rack (58, 72) feeds individual sliders (10) to ... | 12/27/2005 |
| 6973704 | Method and apparatus for positioning sliders for automated slider insertion An apparatus for inserting a slider onto a flexible zipper tape, comprising: a zipper tape guide that supports a section of zipper tape in a slider insertion zone and guides advancement of the zipper tape along a line; a mechanism for displacing a slider from a pre-... | 12/13/2005 |
| 6968604 | Method for forming slider end stops on zipper A method and a system for forming slider end stops on a zipper tape that comprises first and second interlockable zipper parts. The method comprises the following steps: (a) transmitting sufficient ultrasonic wave energy into first and second areas of the zipper tap... | 11/29/2005 |
| 6958563 | Riser commutators Rotary switches, and in particular riser-style commutators, are detailed together with featured strips from which they are made. Segments formed from the strips may include anchor notches and slots for receiving reinforcing rings. The structure of the strip addition... | 10/25/2005 |
| 6957482 | Space forming apparatus for a slide fastener chain The space forming apparatus includes at least a pair of fixed grippers disposed in a lower part thereof; a pair of movable grippers disposed with a gap in a front-to-rear direction such that the movable grippers are movable in a vertical direction toward and away fr... | 10/25/2005 |
| 6938330 | Method and apparatus for inserting sliders during automated manufacture of reclosable bags Methods and apparatus for automated insertion of sliders on continuous zipper material. The method involves the following steps: (a) advancing a section of zipper material past a leading edge of a splitter plate that pries the zipper strips of the zipper material ap... | 09/06/2005 |
| 6935007 | Method and apparatus for gripping zipper tape during slider insertion A zipper guide apparatus having different operational states. In the first operational state, the zipper tape is held securely, i.e., gripped, in a zone adjacent the slider insertion zone during slider insertion. In a second operational state, the zipper tape is not... | 08/30/2005 |
| 6931707 | Zipper assist device A device is designed to facilitate operation of a separable slide fastener having a pair of stringers, respectively carrying first and second rows of interlocking elements, the rows respectively terminating at a stop member and a lug, the fastener including at least... | 08/23/2005 |
| 6913835 | Metal wire rod for forming slide fastener coupling elements and slide fastener coupling element formed from the same metal wire rod In a Y bar for forming coupling elements, an opening angle of a pair of right and left leg parts is narrower than that of the ordinary ones. Plural bent portions, which are bent inward, are formed successively in an extending direction of the leg parts in a range fr... | 07/05/2005 |
| 6839949 | Zipper repair tool and method of use therefore A hand tool that has a pliers-like body and a special head. The head has a pair of parallel teeth that fit onto the grooves of a zipper guide. As the tool is squeezed, the teeth force the grooves closed uniformly and symmetrically. In this way, the tool can adjust t... | 01/11/2005 |
| 6796015 | Retractable zipper guide for slider insertion apparatus A zipper guide for use in a slider insertion machine in which the zipper guide can be easily loaded with zipper tape without disassembly of the zipper guide. The slider insertion apparatus comprises: an assembly for inserting sliders onto a zipper tape; first and se... | 09/28/2004 |
| 6783351 | Apparatus for manufacturing slide fastener spiral continuous element row An apparatus for manufacturing slide fastener spiral continuous element row comprises a forming screw assembly, a die assembly, an abutment assembly, and a rear forming assembly. The invention can effect a stable operation with the cooperation of a spring-biased sha... | 08/31/2004 |
| 6783350 | Apparatus for manufacturing slide fastener coil-shaped continuous element row An apparatus for manufacturing slide fastener coil-shaped continuous element row comprises a forming screw assembly, a die assembly, an abutment assembly, and a rear forming assembly having one or two shuttle assemblies or a shaft mechanism. An arcuate recessed port... | 08/31/2004 |
| 6757953 | Method for forming an end of slide fastener chain A method for forming ends of a slide fastener chain wherein, coil-shaped fastener elements such as linear fastener elements are attached and sewed to side edge portions of a pair of fastener tapes with sewing yarns as fixing yarns while a core thread is inserted thr... | 07/06/2004 |
| 6692046 | Latch striker with integral back plate A striker assembly for latch engagement has symmetrical sides of three intersecting plates including a mounting plate, a striker plate in which a striker throat and striker bar is formed, and a back plate which intersects the mounting plate and striker pl... | 02/17/2004 |
| 6638381 | Method for preparing ultra-fine grain titanium and titanium-alloy articles and articles prepared thereby A method for preparing ultra-fine grain titanium or titanium-alloy articles used for adjoining or assembling of detail components. Coarse-grained titanium or titanium-alloy materials typically are heated and forced under constant pressure through a fricti... | 10/28/2003 |
| 6519826 | Method for the production of a waterproof and gasproof zip fastener A water-tight and gas-tight zip fastener with a sealing port and a method for forming the same provides a zip fastener made of plastic in which preferably spirals in a spiral zip fastener are injection molded with a thermoplastic elastomer which forms a c... | 02/18/2003 |
| 6422851 | Apparatus for fabricating color slide fasteners The method includes the steps of a tape arranging step for arranging a support tape of a slide fastener on a mold having a capacity having a plurality of unit fastening element molding material grooves for molding a plurality of unit fastening elements, a... | 07/23/2002 |
| 5985438 | Reinforcing tape for slide fastener A reinforcing tape for a slide fastener and a slide fastener having a pair of fastener tapes whose end portions are reinforced with the reinforcing tapes are disclosed. On the end portion of a fastener tape to which a pin-and-box separator of a slide fast... | 11/16/1999 |
| 5778519 | Apparatus for forming "slide fastener elements" In manufacturing slide fasteners, especially fastener elements, an elongated wire of a generally Y-shape cross section with attaching legs shaped into a generally C form by rolling, is supplied intermittently at a predetermined pitch and is then cut into ... | 07/14/1998 |
| 5671510 | Slide fastener elements In manufacturing slide fasteners, especially fastener elements, an elongated wire of a generally Y-shape cross section with attaching legs shaped into a generally C form by rolling, is supplied intermittently at a predetermined pitch and is then cut into ... | 09/30/1997 |
| 5617770 | Closure arrangement for reclosable bag A zipper for a reclosable bag includes an elongated male and female profile. The female profile has first and second legs parallel to each other to form a channel there between. The first leg has a plurality of portions removed to form a series of breaks ... | 04/08/1997 |
| 5584111 | Slide fastener construction machine Provided is an improvement to the slide fastener constructing machine. The improvement provides a tooth-notching unit for forming a notch on each tooth on the stringer produced by a stringer producing unit which is a conventional unit and subsequently col... | 12/17/1996 |
| 5495655 | Method and apparatus for forming slide-fastener coupling element A method and apparatus for forming a slide-fastener coupling element from a metal wire having a substantially Y-shaped cross section wherein a blank piece is cut or sliced off from the metal wire by a co-action between a cutoff die and a cutoff punch, and... | 03/05/1996 |
| 5367758 | Method for manufacturing slide fastener coupling elements A blank wire of a generally Y-shape cross section is supplied intermittently at a predetermined pitch, during which the blank wire is successively cut transversely into slices of a predetermined thickness. A bulge is formed at a time for a head portion of... | 11/29/1994 |
| 5361471 | Slide fastener coupling element forming apparatus and cutting punch As it is intermittently supplied, a blank wire having a generally Y-shape cross section is cut into slices of a predetermined thickness by a cutting punch, which is fixed to the frame, and a coacting cutting die, which is reciprocatingly movable in the cu... | 11/08/1994 |
| 5357663 | Slide fastener coupling element forming apparatus In a slide fastener coupling element forming apparatus, a blank wire of a generally Y-shape cross section intermittently supplied at a predetermined pitch is cut off into pieces of a predetermined thickness by a fixed cutting punch and a reciprocating cut... | 10/25/1994 |
| 5119534 | Method of forming coupling head portions in production of slide fastener coupling element In a method of forming coupling head portions on a monofilament of thermoplastic synthetic resin for production of a slide fastener coupling element, the monofilament is stamped from one side to form recessed small-thickness portions bulging from the othe... | 06/09/1992 |
| 5103546 | Process for preparing a strip of flexible closure material to be applied to a receptacle A process and apparatus is described for providing a strip of flexible closure material to be affixed to a receptacle. The strip of flexible closure material comprises a combination of a plurality of interengaging strip portions in their interengaged stat... | 04/14/1992 |
| 5079820 | Process and means for the manufacture of zip fasteners A process for manufacturing zip fasteners by molding sets of locking members of any length and of the staggered or slit type, the upper stop members, the coupling and the box, in a single operation. The process is achieved with a two-part injection moldin... | 01/14/1992 |
| 5058246 | Slide fastener elements made of helically wound monofilament and method of forming the same Slide fastener elements made of a helically wound synthetic resin monofilament and the method of forming the same. According to a preferred embodiment, each fastener element comprises an interengaging head arranged on one-line in the longitudinal directio... | 10/22/1991 |
| 5054183 | Process for the manufacture of zip fasteners A process for manufacturing zip fasteners by molding sets of locking members of any length and of the staggered or slit type, the upper stop members, the coupling and the box, in a single operation. The process is achieved with a two-part injection moldin... | 10/08/1991 |
