Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7578326 | Anti-skid device for vehicle wheels An anti-skid device for vehicle tires is provided which includes a chain cover formed by two spaced apart chain lengths (9) formed of links (11), that are connected by connector links (15). Guide chain bodies (23) engage the connector lin... | 08/25/2009 |
| 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 |
| 6725894 | Traction device A traction device for a dual wheel set. The traction device includes side-members and cross-members, the side-members fitted to the inner side of an inside wheel and the outer side of an outside wheel. A cinch line extended around the dual wheel set at the juncture ... | 04/27/2004 |
| 5896906 | Vehicle tire, anti-skid device An anti-skid device, capable of being classified as an "improved" traction device, for tires in a single or dual wheel arrangement having two retaining rings pre-installed on the outer and inner surfaces of the wheel hub. Each retaining ring is designed t... | 04/27/1999 |
| 5423365 | Multiple purpose tire chains An anti-skid tire chain for use on both soft and frozen terrain is disclosed. The chain comprises a pair of parallel side chains adapted to encircle opposite sides of a tire, a plurality of traction units such as rings aligned medially between the side ch... | 06/13/1995 |
| 5285834 | No-skid spring chain A pneumatic tire is provided with a central tread area circumferential groove extended thereabout and a skid chain consisting of a link chain section having opposite ends and a generally cylindrical expansion spring semi-permanently interposed between and... | 02/15/1994 |
| 5280816 | Tire sidewall protector A plate for placement between a tire chain and a tire sidewall to protect the sidewall. Lockable ties pass through plate openings and chain links to hold the plate in place. A second form of the plate utilizes locks integral with the plate and which pass ... | 01/25/1994 |
| 5178700 | Non-skid devices for tires A tire non-skid device including a net-like tire chain body, metal shanks planted in the tire chain body, and ceramic spikes fixed to tip ends of the metal shanks.... | 01/12/1993 |
| 5082039 | Anti-skid chain for vehicle tires An anti-skid chain for a vehicle tire comprises an inner and outer harness. The outer side harness comprises a closed loop harness line with elastic expansion members acting as a damping elements. A locking device is attached at one end of the harness lin... | 01/21/1992 |
| 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 |
| 5056574 | Tire chain with cross members forming a zig-zag pattern A tire chain comprises an elongated inner side member adapted to form a circle of predetermined circumference about a rim of a vehicle wheel at the inner side thereof, the inner side member having co-operable fastener elements at opposite ends thereof whi... | 10/15/1991 |
| 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 |
| 5022449 | Nonskid device for automobile tires having annular elastic buffer members A detachable automobile tire nonskid device includes a plurality of members mounted on a metallic portion which would otherwise come in contact with a road surface. The plurality of members may include spaced rigid nonskid plate members and annular elasti... | 06/11/1991 |
| 4928740 | Stud link A stud link for a tire chain, including a plate-like link body that has a tire contact surface and a wearing surface. The link body has at least one attachment hole for a chain link that is to be connected, and at least one central wearing element and two... | 05/29/1990 |
| 4924925 | Horizontal link member for connecting vertical links of a tire chain A horizontal link member for connecting vertical links of a tire chain. The ink member includes a ring element and a closure part. The ring element includes a ring body that merges via transition portions into two outwardly extending arms that are adapted ... | 05/15/1990 |
| 4892127 | Snow chain having a network of diamond shaped openings This invention discloses a snow chain comprising at least three chains or wires arranged and connected to each other in a network providing two series of diamond-shaped openings adjacent and parallel to one another, wherein the two extremities of the firs... | 01/09/1990 |
| 4832100 | Tire chain A tire chain having a tread portion that connects an inner portion with an outer portion. The inner portion is provided with a closure, one closure member of which, from a starting position, can be connectable and releasable from the other closure member ... | 05/23/1989 |
| 4690190 | Securing device for a vehicle tire chain A tire chain adapted to be mounted on and readily removed from a vehicle tire includes an inner support extending, in the mounted state of the chain, circumferentially along and in engagement with an inwardly oriented tire side. The inner support has a sp... | 09/01/1987 |
| 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 |
| 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 |
| 4366850 | Cable-type tire chains and cross member and traction sleeve therefor A cable-type tire chain comprises side members adapted to extend circumferentially around opposite side walls of a tire and cross members connected between the side members so as to extend over and across the tire tread. The cross members comprise cables ... | 01/04/1983 |
| 4361178 | Straight link studded tire chain An improved tire protection chain (14) is disclosed which comprises a plurality of flat metal rings (16) disposed in a staggered pattern over the tread surface of the tire. Means (18) are provided for joining the rings into a flexible mesh, this means com... | 11/30/1982 |
| 4274461 | Assembly-type tire protector The present invention relates to an assembly-type tire protector comprising a plurality of annular members disposed substantially parallel to the tire surface and a plurality of link members disposed substantially perpendicular to the tire surface, said a... | 06/23/1981 |
| 4263954 | Tire chain having improved traction A cable type tire chain has traction sleeves on the cross members located only adjacent to the shoulders of the tire. The center portion of the cross members adjacent to the middle of the tire tread is free of traction sleeves. The traction sleeves are sp... | 04/28/1981 |
| 4234027 | Tire-chain assembly A tire-chain assembly for a vehicle-mounted wheel basically comprises annular inner and outer holders respectively engaging the inner and outer faces of the wheel. At least one traction chain crisscrosses over the road-engaging surface of the wheel betwee... | 11/18/1980 |
| 4224972 | Combination winch and traction intensifier for rubber tired vehicles A winching and traction intensifying device for extricating an immobilized rubber tired vehicle. The device has a traction intensifying portion secured to a driving tire and an anchoring portion connected to the traction intensifying portion. A correspond... | 09/30/1980 |
| 4161976 | Anti skid chain Anti-skid tire chain comprises a network positionable during use in the region of the tire tread. The network includes two parallel chains extendable along opposite sides of the tread, a plurality of rings interconnected into each chain for guiding same a... | 07/24/1979 |
| 4144920 | Tire chain construction A traction increasing chain for vehicular tires that may be installed thereon without moving the tire relative to the surface supporting it. The chain provides plural rigid side elements articulately interconnected and carrying cross-chains, all so config... | 03/20/1979 |
| 4106542 | Tire protective chains A tire chain comprising tread links formed with a perforation and connectors that are loops threaded through the perforations in three or more tread links interconnecting the tread links to form a network of closed figures. The connectors are loops of a c... | 08/15/1978 |
| 4071069 | Snow chain for tires of motor vehicles for quick mounting A small chain for a vehicle tire has an inner chain member adapted to lie along a flank of the tire and of a circumference substantially equal to the circumference of the tire in the region at which this inner chain member lies, the ends of the inner chai... | 01/31/1978 |
| 4055210 | Anti-skid device A non-skid device for vehicle wheels having a pair of cables, one for each side of the wheel, with positioning nipples fixed at intermediate points of the cables and stop nipples at each end of each cable. A plurality of elastic anti-skid members are prov... | 10/25/1977 |
| 4020885 | Tire chain for the protection and slip prevention of vehicle tires A tire chain for the protection and slip prevention of vehicle tires comprising a number of main metal nets and a number of supplemental metal nets, whereby the necessary number of main and supplemental metal nets respectively are disposed side by side in... | 05/03/1977 |
| 3999584 | Traction means for resilient tires of motor vehicles A traction attachment for the drive wheels of motor vehicles comprising a number of interconnected traction units self applicable to a tire by interposed spring means in resilient response to pressure exerted by a wheel longitudinally progressing thereove... | 12/28/1976 |
| 3974871 | Anti-skid tire chain An anti-skid tire chain, especially for dual tires in which the chain has a tread part for engaging the tread of each tire and an intermediate part between and connected to the tread parts. Each part of the chain is formed of rings and chain links connect... | 08/17/1976 |
| 3955610 | Self-seating tire traction apparatus for clampingly engaging tire sidewalls A tire traction apparatus for use on a tire comprising at least one chain having first and second ends and a length slightly greater than the circumference of the tire, a latch for securing the first end to a portion of the chain proximate the second end,... | 05/11/1976 |
