Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7398806 | Easy mount tire chains Configurations and mounting procedures for vehicle tire chains, which enable easier mounting of the chain upon the wheel, including performing the complete installation in one stop of the vehicle, while providing strong stabilization against random high operating fo... | 07/15/2008 |
| 7363952 | Non-return block for snow chains having inserts to protect wheel A non return block (5) for locking a tensioning terminal portion (7) of snow chains (2), comprising a body (51) which defines a channel (12) in which the terminal portion (7) passes and a ratchet or a pawl (13) pivote... | 04/29/2008 |
| 7299842 | Link member for tire chains A link member for tire chains has a link member body having at least one connecting opening for receiving additional chain members. The link member body has a tire contact part and a wear part, wherein the wear part has lateral studs and at least one central stud. T... | 11/27/2007 |
| 7278456 | Tire chain and cable installation device and method A tire chain and cable installation device to assist tire chains and cables installation on vehicles with tires or wheels. The tire chain and cable installation device is made of a resilient, flexible clamp portion having two gripping ends formed integrally with the... | 10/09/2007 |
| 7204282 | System for modular tire chain structure A flexible system for winter traction products that allows for component repairability, interchangeability, customization and resizing, all without requiring tools. The key to this system is the provision of connectors which provide interconnection of multiple compo... | 04/17/2007 |
| 7174933 | Easy mount tire chains Configurations and installation methods for vehicle tire chains which provide tire chains especially easy to mount, and provide improvements in performance and vendor supply. ... | 02/13/2007 |
| 7066227 | Self-tensioning tire cable chain system A tire cable chain system is disclosed. The tire cable chain system includes a continuous and unbroken outboard annular holder; a tensioning cable adapted to form at least one tensioning cross member and a continuous and unbroken inboard annular holder disposed in p... | 06/27/2006 |
| 7028846 | Fish grading device A fish grading device is provided including a framework of substantially rigid elongate members pivotably interconnected to form a plurality of loops, wherein each the loop is formed from a plurality of the substantially rigid elongate members and defines an apertur... | 04/18/2006 |
| 6998196 | Diffractive optical element and method of manufacture A diffractive optical element such as a diffuser, diffraction grating, and/or hologram, can be manufactured by using a surface relief pattern on a surface of a surface relief tool. A layer of curable material is physically contacted with the surface relief pattern o... | 02/14/2006 |
| 6915825 | Self-tensioning tire cable chain system A tire cable chain system is disclosed. The tire cable chain system includes a continuous and unbroken outboard annular holder; a tensioning cable adapted to form at least one tensioning cross member and a continuous and unbroken inboard annular holder disposed in p... | 07/12/2005 |
| 6752470 | Quick chains traction device for light and heavy duty trucks The present invention 10 discloses a tire 12 traction device having two 30-ink sections 14L, 14R joined at one distal end by an additional link 16 having an S-hook 18 and two more chain links 20 connected thereto. A t... | 06/22/2004 |
| 6651713 | Easy on chains A universal chain for wheels that is easy to install. It has a series of sections of chains to cover the tread of a tire as well as its inner and outer sidewalls. Each section comprises a number of transverse links caught by two lengths of chains placed r... | 11/25/2003 |
| 6619353 | Chain for tire An apparatus for preventing a slipping of a tire is disclosed. The apparatus for preventing a slipping of a tire includes a wire having separable coupling units connected at both ends of the wire at an inner side of a tire for thereby forming a circle sha... | 09/16/2003 |
| 6591882 | Traction device for vehicle tires A tire chain for adding traction to a vehicle tire riding on snow and/or ice. The tire chain includes side members encircling the sides of the tires and cross members that extend across the tread from side member to side member. Securement devices secure ... | 07/15/2003 |
| 6539995 | Releasing device for snow chains A releasing device for snow chains comprising an inner side portion (2) closable as a ring, suitable to be placed on an inner part of a tire (3), an outer side portion (4) suitable to be placed on an outer part of the tire (3), said portions being joined ... | 04/01/2003 |
| 6520231 | Tire chain link with traction members A link for a tire chain including a tread portion and flanking side-wall portions with at least the tread portion including vertically extending links, three or four of which are interconnected by horizontal connectors to form a mesh of a desired shape. T... | 02/18/2003 |
| 6345653 | Snow chains for vehicles A snow chain structure includes an inboard flexible cable having an end provided with a male connector and another end provided with a female connector engageable with the male connector, a plurality of outboard flexible cables each having a first end con... | 02/12/2002 |
| 6092577 | Side holder of an antiskid chain In an antiskid chain, a side holder has a closure for connecting the two free first and second ends of a shackle strand, each of which ends is provided with a thickened portion. The shackle strand can rest against the side of a vehicle tire and serves to ... | 07/25/2000 |
| 6089291 | Self-tensioning device for snow chains A self-tensioning device for snow chains (2) for vehicles includes an outer element (3) closable in a ring, suitable to be placed on the outer side of the wheel (1), an inner element closable in a ring, suitable to be placed on the inner side of the wheel... | 07/18/2000 |
| 5961754 | Slider stopper having suction cups A net-like device which has plurality of crossed cords or straps that are attached to the outer surface of a vehicle tire. A suction cup is attached where the cords or straps cross each other in order to increase the traction of the vehicle tire.... | 10/05/1999 |
| 5570732 | Log feeding device The log feeding device includes a feeding wheel that has an upper side portion axially from a lower side portion and a rim extending therebetween. The side portions extend outwardly and laterally from the wheel. An elastic tire is mounted on the rim of th... | 11/05/1996 |
| 5400846 | Tire chain ramp A tire chain ramp member in cooperation with a tire chain assembly is arranged to receive the cross link portion of the tire chain within a groove directed into the top wall of the ramp structure. The ramp top wall accommodates a tire member thereon to pe... | 03/28/1995 |
| 5332015 | Anti-skid device for motor vehicles An anti-skid device for vehicles comprising a plurality of chain strands fastened to a holder which can be set in a rotational movement by means of the wheel of a vehicle against which the holder can be moved an pressed by a carrier. To move the carrier, ... | 07/26/1994 |
| 5072763 | Stud link for a tire chain having recesses on sides of the link body A stud link is provided for a tire protection and/or antiskid chain, and includes a link body having at least one attachment opening for chain links that are to be attached to the stud link. The link body also has a wear portion that is provided with at l... | 12/17/1991 |
| 5058644 | V-shape stud link for a tire chain and tire chains using same A stud-like link and tire chain using same. Each stud-like link has at least two link portions that extend at an angle to one another. The tire chain has an outer and inner portion that are interconnected by a surface contact portion that at least in part... | 10/22/1991 |
| 5056206 | Method for securing a tire chain to a tire In the several embodiments, the tire chain, and a method of installing a tire chain in which a line extends from each of the opposite ends of the portion of the tire chain that encircles the inside of a tire. In a preferred embodiment, the two lines cross... | 10/15/1991 |
| 4947912 | Stud or web link for tire chains In a preferably edge-hardened or case-hardened stud link for tire chains, to increase the link surface a plurality of troughs (10) which are open on only two sides is arranged on the side faces (8, 9) of the ground-facing link part (1). The troughs (10) a... | 08/14/1990 |
| 4872306 | Method of fabricating chain mesh and chain mesh fabricated thereby A chain mesh for easy installation comprises a plurality of running lengths of chain. In one embodiment a plurality of vertical running lengths are positioned in parallel spaced relationship. A plurality of substantially horizontal running lengths are the... | 10/10/1989 |
| 4830078 | Helical cable tire chain having multi-angular traction sleeves and rubber rings A helical cable tire chain having a series of small multi-angular metal traction sleeves, a series of rubber rings, which are supported on a helical cable when it is attached to a tire so that the chain enhances the traction and gripping power on ice or s... | 05/16/1989 |
| 4800939 | Anti-skid device A chain-carrying pulley (1) is journalled on a shaft (3) fastened to an arm (4) pivotally connected to another arm (5) which in turn is rigidly fastened to the rear axle casing (6) of a vehicle. An inflatable bellows (7) extends between the arms. When inf... | 01/31/1989 |
| 4673015 | Chain net A chain net comprises a plurality of warp strands (1.1) with mutually equal links (1.2) which at intersections lock round links (1.5) of weft strands (1.4) having mutually equal links. The links of the warp strands have dimensions such that they first all... | 06/16/1987 |
| 4660611 | Tire chain An improved passenger car tire chain employing heat treated medium carbon steel is disclosed. The improved tire chain is approximately twice as durable as that presently furnished to meet NACM-5179(TC) for Type PL chains when AISI 1026 or 1029 carbon stee... | 04/28/1987 |
| 4621712 | Anti-skid device for motor vehicles A cast, low density metal disk for anti-skid devices which has a periphery of sufficiently small width that when it contacts the wet side wall of a tire on a vehicle it spreads the film of water to each side and leaves an essentially dry area of contact b... | 11/11/1986 |
| 4544010 | Tire and antiskid net for vehicle tires A tire and antiskid net for vehicle tires, particularly for tires of heavy earth moving machines, has a plurality of vertical members arranged to extend substantially normally to a tire surface, a plurality of ring-shaped connecting members of a limited l... | 10/01/1985 |
| 4542779 | Tire chain An antislip tire chain has provided therewith an inner part and an outer part joined together by a tread part. The inner part includes a fastener formed by a fastener member and a counter fastener member. An introduction opening of the fastener member is ... | 09/24/1985 |
| 4493354 | Tire chain A tire chain comprising two-spaced parallel side chains, a plurality of cross chains joining the side chains at spaced intervals, a plurality of spaced junction links in each side chain, wherein each junction link has areas of reduced thickness and a hook... | 01/15/1985 |
| 4416319 | Closure for tire chains In tire chains, closures are required to lock tension-chain lines (10) in the tensioned position. A proposed closure is provided with a pull-through orifice (2) for the tension-chain line (10) and with a locking slot (3) adjacent to the pull-through orifi... | 11/22/1983 |
| 4403639 | Stud arrangement on chains for motor vehicles, and a method of producing such chains A stud arrangement on casehardened studded chains for motor vehicles, wherein the studs consist of a steel body which is permanently welded to a chain link and provided with a centrally disposed hard metal pin. The hard metal pin is inserted into the stee... | 09/13/1983 |
| 4391313 | Tire chain At the nodal points of the chain net in a tire chain, components (1) are provided which have at least one T-shaped section, the transverse bar (3,4) of which forms holding arms (5) for chain links (6) to be hung in; in these components, the ends, forming ... | 07/05/1983 |
| 4243087 | Self-adjusting tire chain A self-adjusting easy on tire chain for use on automotive or similar vehicle tires consists of a chain having a spacing and alignment bar with a fastener for securing the chain in the proper position on a tire.... | 01/06/1981 |
