Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8166744 | Articulating pin for bicycle chains and relative chain An articulating pin for the links of a bicycle chain, of the type capable to be inserted in aligned holes of an outer link and of the corresponding inner link of the chain, to hinge the links to one another, has a central portion and a distal portion. The distal end... | 05/01/2012 |
| 8166745 | Tool for extracting and inserting pins of roller chains A tool for inserting and extracting pins of roller chains includes a body having a bridge adapted to engage a chain and a drive screw assembly coupled to the main body on a first side of the bridge. The drive screw assembly includes a drive screw which is rotatable ... | 05/01/2012 |
| 8141333 | Chain assembling-disassembling structure A chain assembling-disassembling structure includes an assembling base, a first clamping component, a second clamping component, a penetrating shaft and a driving shaft. The assembling base has a fixing portion and the fixing portion has a concave edge for receiving... | 03/27/2012 |
| 8136338 | Device for assembling and disassembling a bicycle chain A device for assembling and disassembling a bicycle chain comprises a main body, an actuating member, a rod member, a pulling member, and an elastic plate. The rod member, the pulling member and the elastic plate are connected to one another to guide a positioning m... | 03/20/2012 |
| 8117819 | Vehicle chain repair device A chain repairing tool, which includes a tool body and a PBR block, which is configured for pressing side plates of chain links, for breaking chain links and for riveting chain links as the PBR block is variously oriented within the tool body of the chain repairing ... | 02/21/2012 |
| 7797920 | Drive chain and tool device for assembling or disassembling the same A drive chain includes two end chain components and a connecting plate. Each of the end chain components has a pin hole and a connecting pin. The connecting pin includes a main segment inserted into the pin hole and having a diameter, an anchoring end segment axiall... | 09/21/2010 |
| 7721520 | Chain disconnecting and connecting tool A highly durable and compact chain disconnecting and connecting tool that may be used for a chain at a sprocket part for winding the chain and that can receive an operational load at two places is provided. A first block has an engaged pressure actuating member coup... | 05/25/2010 |
| 7634899 | Method and apparatus for installing and tensioning track assemblies on skid steer loaders A tool for the quick and easy installation and tensioning of track assemblies on skid steer loaders is arranged to properly and positively align and draw the free ends of the track together and hold the track ends in proper, aligned condition squared relative to eac... | 12/22/2009 |
| 7562518 | Fluid activated connecting pin removal tool A fluid activated connecting pin removal tool, includes a body defining a first cavity adapted to receive a portion of a work piece and a second cavity positioned substantially perpendicular to and intersecting the first cavity. When a fluid activated cylinder is mo... | 07/21/2009 |
| 7497071 | Chain puller A chain puller includes an elongate housing having a C-shaped channel extending between the first end and the second end of the housing. First and second chain engaging members are provided. Each has a lower portion and an upper portion. The upper portion has a chai... | 03/03/2009 |
| 7441396 | Manufacture method of power transmission chain and pin-retainer jig A method of manufacturing of power transmission chain 1 by interconnecting plural link plates 2 with pins 3. Individual pin pairs 3 are arranged and temporarily fixed to places. The link plates 2 are sequentially stacked in layers ... | 10/28/2008 |
| 7430849 | Conveyor chain pin remover A conveyor chain pin remover includes a gear case with an attached handle, an actuating lever, a ratchet mechanism engaged by the actuating lever and first and second aligned passthrough openings. A retaining bar, is attached adjacent a first end to the gear case an... | 10/07/2008 |
| 7409817 | Bicycle chain splitter A bicycle chain splitter comprises a splitter body, an actuating member and a guiding member. The splitter body includes a guiding hole and a through hole that are aligned with each other. Between the guiding hole and the through hole is formed an assembly space for... | 08/12/2008 |
| 7357383 | Billet loader for extrusion presses A billet loader for extrusion presses includes a pair of billet grippers supported by two arms. While the first arm is fixed in relation to the supporting structure, the second arm is mobile in relation to the first arm allowing a translational motion along the axis... | 04/15/2008 |
| 7343728 | Chain tool A tool for aiding master link removal from a chain. The master link includes two pins and a clip with two ends extending from one pin to the other. The chain includes plates, pins, and rollers. The chain has a longitudinal direction along the length of the chain. Th... | 03/18/2008 |
| 7325889 | Track having rotatable bushing and link for the same In a track with a rotatable bushing which is brought into engagement with a sprocket of a track-type vehicle, it is intended that strength is enhanced rationally by link functionality sharing and by combination of such assigned functional tasks for achieving further... | 02/05/2008 |
| 7299514 | Foldable tool set with chain repair tool The invention relates to a foldable tool set installed with a chain repair tool. The tool set has a housing and foldaway tools pivoted on the housing. The chain repair tool comprises a main body and an ejector pin screwed on top of the main body. The chain repair to... | 11/27/2007 |
| 7254935 | Ratchet arrangement for a chain splitter A ratchet arrangement of a chain splitter comprises a rotating rod integrally formed at a side of the ratchet wrench, and the rotating rod is to be screwed in a threaded hole of a splitter body. The ratchet wrench can reduce the required revolving space and the whol... | 08/14/2007 |
| 7216472 | Guiding shaft structure for chain connector A guiding shaft structure for a chain connector includes a black shaft and a guiding bolt. The black shaft comprises a passage with a threaded section therein and a first protruding ring, a second protruding ring and a third protruding ring on an outer surface there... | 05/15/2007 |
| 7152846 | Gripping tool with orthogonal handles A gripping tool having a handle oriented orthogonally to the plier jaws to facilitate various operations, such as pulling a wire through a drawplate. ... | 12/26/2006 |
| 7140173 | Method and device for assembling an endless chain, in particular a transmission chain A method as well as a device for assembling a transmission chain made up of sets of two elongated elements which lie with their long sides against each other and are coupled in pairs to each other by link plates with openings of which chain one supports the sets in ... | 11/28/2006 |
| 7131258 | Device for closing a chain, particularly a bicycle chain Device for closing a chain, particularly a bicycle chain, comprising a first and a second pair of end outer plates connected by at least one pair of inner plates, a pair of rivets so engaging a pair of end holes of the first and the second pair of outer plates and t... | 11/07/2006 |
| 7112129 | Shellfish cracking device A shellfish cracking device for cracking shellfish such as lobster and crabs is provided. The shellfish cracking device includes a first cracking member having a first handle portion, middle portion, and blade portion; and a second cracking member having a second ha... | 09/26/2006 |
| 7100353 | Portable track link disassembly tool A portable disassembly tool is provided to disassemble a track link assembly from a machine by removing opposed track links from the track link assembly. The portable disassembly tool includes first and second members that are tightly secured to the track link to be... | 09/05/2006 |
| 7082747 | Chain connecting pin extracting apparatus A chain connecting pin extracting apparatus comprises a main body; a pin extractor support supported by the main body; and a pin extractor supported by the pin extractor support for movement in a direction of a pin extractor axis defined by the pin extractor. The pi... | 08/01/2006 |
| 7007360 | Method and apparatus for disassembling a track chain The present invention includes a portable disassembly tool 56 for removing outer track links 36 from a track chain assembly 12. The disassembly tool 56 includes a body adapted to engage the track chain assembly and a moveable ram 66 | 03/07/2006 |
| 6966170 | Device for closing a chain, particularly a bicycle chain Device for closing a chain, particularly a bicycle chain, comprising a first and a second pair of end outer plates connected by at least one pair of inner plates, a pair of rivets so engaging a pair of end holes of the first and the second pair of outer plates and t... | 11/22/2005 |
| 6957478 | Motor vehicle utility tool A tool for disconnecting the air and electrical connections between a motor vehicle and a trailer or a utility hookup station includes a handle and a forked portion. A spring-mounted push bar extends away from the handle and abuts the electrical connection socket of... | 10/25/2005 |
| 6951096 | Method and apparatus for installing links on an endless track chain The present invention provides a portable machine for assembling a track for a track type work machine. A positioning block is provided for alignment of a pair of track pins that are to receive an outer track joint. A portable assembly tool having a pair of contact ... | 10/04/2005 |
| 6938732 | Chain with pins equipped with lubricating cartridges and cartridge for said chain A chain with links made of plates connected with hollow pins containing a reserve of lubricant connected with the chain parts to be lubricated. The lubricant reserve is contained in replaceable cartridges inserted removably in the pins through an appropriate end pas... | 09/06/2005 |
| 6886323 | Fixing structure between link and pin in crawler belt, and fixing method thereof In a crawler belt comprising pairs of opposite links connected endlessly via pins press-fitted into the links, fixing surfaces of pins or links are successively pressed and deformed from the fixing surfaces in an axial direction along the circumferences inside or ou... | 05/03/2005 |
| 6880323 | Width adjustable chain tool A chain tool used to disassemble or assemble a chain includes a set of spacers allowing micro adjustability to facilitate first and second anvil surface contact with chain plates when chain connection pins are being displaced or replaced to disassemble or reassemble... | 04/19/2005 |
| 6810654 | Chain assembly method for joining a flat link articulated chain The invention relates to a chain assembly method for joining a single or multiple link-plate chain having alternating, uncranked outer and inner chain links using prefabricated inner chain links in particular comprising two parallel link plates and parallel hollow p... | 11/02/2004 |
| 6564539 | Method and apparatus for retaining a track chain joint A method and apparatus of assembling a joint of an endless track chain for track-type machines to prevent endplay in the joint is disclosed. The joint includes a pair of links and a cylindrical pin. Each link includes a outwardly offset outboard end colla... | 05/20/2003 |
| 6490853 | Method for joining a flat-link articulated chain element A method for joining a plate chain link is to be improved, in which at least one plate is connected to at least one bolt by way of a pressing and aligning process. This is achieved by the measures that the bolt is centered in relation to a main chain axis... | 12/10/2002 |
| 6457304 | Method and apparatus for retaining a track chain joint A method and apparatus of assembling a joint of an endless track chain for track-type machines to prevent end play in the joint is disclosed. The joint includes a pair of links and a cylindrical pin. Each link includes a outwardly offset outboard end coll... | 10/01/2002 |
| 6453657 | Hydraulic device for assembly and disassembly of conveyor chains using interference-fit connecting pins and method of using the same A portable hydraulic press with two opposing plates connected by bolts can be clamped on a conveyor chain that has interference-fit connecting pins between pairs of rectangular plates forming the chain links to assemble or disassemble the chain. Once the ... | 09/24/2002 |
| 6270173 | Fixing structure of link and pin of travelling crawler belt, and fixing method thereof In a travelling crawler belt in which a pair of left and right links are connected by pins respectively press-fitted into the corresponding links, a fixing end surface of the pin or the links is continuously and locally pressed and deformed in an axial di... | 08/07/2001 |
| 6192297 | Method for handling metal sheets in a working area comprising a machine tool and a robot A method for moving metal sheets of a working area by an antropomorphous robot comprises a) taking of preselected fixed input data that identify the geometry in the space of components of a working island; b) taking, comprising from a machine tool, presel... | 02/20/2001 |
| 6032455 | Device to hold roller chain A device to hold roller chain is disclosed for holding roller chain in position for repair, maintenance, and the like. The device includes first and second jaws which are generally parallel. Each jaw has first and second ends, inner and outer faces, and t... | 03/07/2000 |
