| Patents for B60B 39 - Increasing wheel adhesion (916) |
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| 09/17/1992 | DE4108706A1 Endless band for proving adhesive friction to vehicle wheel - has external projections and is fitted by sliding under wheel |
| 09/16/1992 | CN2115914U Brake non-skid device for car |
| 09/02/1992 | EP0370106B1 Treading device for wheels |
| 08/19/1992 | EP0499199A2 Sanding device for vehicles, especially railway vehicles |
| 08/12/1992 | CN2112533U Wheel crawling device from pit |
| 07/20/1992 | WO1992012865A1 Improvements relating to vehicle wheel support devices |
| 07/20/1992 | CA2100763A1 Vehicle wheel support devices |
| 07/15/1992 | CN2109958U Skid apparatus for bike |
| 06/17/1992 | CN2107394U Sand spreading skid-proof device |
| 06/10/1992 | EP0403505B1 Device for protecting the wheels of a vehicle against aquaplaning |
| 06/02/1992 | US5118142 Traction device |
| 05/27/1992 | EP0487297A1 Mechanism for translation of linear motion to rotary motion |
| 05/20/1992 | CA2055748A1 Mechanism for translation of linear motion to rotary motion |
| 03/31/1992 | US5100175 Tire traction enhancing kit |
| 03/31/1992 | US5100054 Vehicle traction assist device |
| 02/26/1992 | CN2097108U Controllable non-skid device for multiple-type vehicles |
| 02/21/1992 | CA2023647A1 Traction belt |
| 02/02/1992 | CA2022496A1 Device at an anti-skid device |
| 01/22/1992 | EP0467494A1 Vehicle anti-skid device |
| 01/14/1992 | US5080443 Anti-skid device |
| 12/31/1991 | US5076379 Mechanism for translation of linear motion to rotary motion |
| 09/25/1991 | CN2085317U Non-skid device for motor vehicle |
| 09/17/1991 | US5048646 Anti-skid device |
| 08/28/1991 | EP0443455A1 Pivoting device for anti-skid chain assembly |
| 08/20/1991 | CA1287854C Pivotation device for a centrifugal chain assembly in a motor vehicle |
| 08/14/1991 | DE4004038A1 Road vehicle wheel adhesion increasing device - uses microprocessor supplied with detected wheel rotation rates and monitored vehicle parameters |
| 06/06/1991 | DE4037989A1 Stiffening element for links of snow chain - ensures stiffness as chain is flung under wheel |
| 05/02/1991 | EP0424382A1 Device for an anti-skid device. |
| 04/30/1991 | US5010982 Method and apparatus for improving vehicle traction and roadability |
| 03/12/1991 | US4998670 Traction mat |
| 02/19/1991 | US4993768 Combined shovel and utility device |
| 01/31/1991 | DE3645126C2 Fastener for vehicle antiskid unit |
| 01/24/1991 | DE3926546A1 Spreading grit in front of vehicle driven wheels - involves compressed air supply to convey grit from the vehicle-borne hopper to wheels |
| 12/27/1990 | EP0403505A1 Device for protecting the wheels of a vehicle against aquaplaning. |
| 11/07/1990 | EP0395648A1 Spreader for ice-bound roads, in particular for incorporation in lorries and buses |
| 11/06/1990 | US4968069 Sand dispensing device having plural compartments |
| 10/18/1990 | WO1990011901A1 Actuating mechanism |
| 10/09/1990 | CA1275124A1 Grit spreader for motor vehicles |
| 10/04/1990 | DE3910619A1 Swivel device for the anti-skid chain assembly of a motor vehicle |
| 07/31/1990 | CA1272110A1 Vehicle skid prevention device employing a centrifugal chain assembly |
| 07/18/1990 | EP0378066A1 Sanding device |
| 07/12/1990 | WO1990007433A1 Anti-aquaplaning device for vehicles and airplanes |
| 05/30/1990 | EP0370106A1 Treading device for wheels |
| 04/25/1990 | EP0365509A1 Anti-skid device |
| 04/11/1990 | CN1007504B Auxiliary snow-chain device for motor vehicles |
| 02/20/1990 | US4901809 Device for positioning and attaching an auxiliary snow-chain device for motor vehicles |
| 02/14/1990 | EP0354383A1 Method and device for the improvement of traction and driving stability of vehicles |
| 01/30/1990 | US4896749 Emergency vehicle braking system and method for using same |
| 11/16/1989 | DE3815060A1 Anti-skid wheel for a motor vehicle anti-skid chain unit |
| 11/15/1989 | CN1037109A Device for pasitioning and attaching auxiliary snow-chain device for motor vehicles |
| 11/09/1989 | DE3814144A1 Device for improving the protection of land vehicles against aquaplaning |
| 10/10/1989 | US4872359 Pivotation device for a centrifugal chain assembly in a motor vehicle |
| 09/27/1989 | EP0334810A1 Positioning and fixing device for an auxiliary anti-skid chain of a vehicle |
| 09/26/1989 | CA1260044A1 Anti-skid device for motor vehicles |
| 09/19/1989 | CA1259647A1 Anti-skid device |
| 09/19/1989 | CA1259646A1 Anti-skid device |
| 09/14/1989 | DE3806920A1 Aquaplaning-verhinderer mit drei stufenaggregaten in einem schmaler als die reifenspur bauendem gehaeuse Aquaplaning preventer with three stages aggregates in a narrower track than the mature bauendem HOUSING |
| 09/08/1989 | WO1989008030A1 Device for protecting the wheels of a vehicle against aquaplaning |
| 09/06/1989 | CN2043926U Auto-antiskid unit of automotive vehicle used on road covered by ice and snow |
| 08/24/1989 | WO1989007533A1 Device for an anti-skid device |
| 08/01/1989 | US4852949 Traction control system |
| 07/18/1989 | US4848510 Snow and ice melting system for automotive vehicles |
| 06/22/1989 | DE3742326A1 Gritting unit |
| 06/20/1989 | US4840399 Anti-skid devices for motor vehicles |
| 06/20/1989 | US4840309 Traction mat |
| 06/15/1989 | WO1989005378A1 Emergency traction device for vehicles |
| 05/11/1989 | DE3736137A1 Centrifugal chain assembly for motor vehicles |
| 05/02/1989 | US4826077 Emergency traction device for vehicles |
| 04/20/1989 | DE3733668A1 Streuanlage fuer vereiste strassen, insbesondere zum einbau in lkw und busse Scattering system for icy roads, in particular for installation in trucks and buses |
| 04/06/1989 | WO1989002836A1 Spreader for ice-bound roads, in particular for incorporation in lorries and buses |
| 03/09/1989 | DE3729091A1 Anti-skid device for motor vehicles |
| 03/07/1989 | US4809797 Auxiliary snow-chain device for motor vehicles |
| 01/31/1989 | US4800992 Anti-skid device |
| 01/31/1989 | US4800939 Anti-skid device |
| 01/19/1989 | DE3722239A1 Starting-traction control and braking aid for motor vehicles |
| 01/03/1989 | US4795093 Traction/sanding device for wheeled vehicles |
| 12/29/1988 | WO1988010200A1 Treading device for wheels |
| 12/29/1988 | DE3720532A1 Anti-aquaplaning system for vehicles |
| 12/29/1988 | DE3719726A1 Method for reducing or eliminating the aquaplaning effect in vehicles which travel on the ground |
| 12/21/1988 | CN88200928U Auto-spreading sand type antiskid unit of motordriven vechicle |
| 12/06/1988 | US4789190 System for improving the gripping power of a vehicle wheel on a support |
| 11/29/1988 | US4787556 Grip plate |
| 11/23/1988 | CN88200567U Sand spreading antislip device for motor car |
| 11/09/1988 | CN88201687U Self-aid cushion for automobile |
| 08/17/1988 | EP0278899A1 Fastening device of an auxiliary snow chain device for a road vehicle |
| 08/17/1988 | EP0278896A1 Auxiliary snow chain device for road vehicles |
| 08/17/1988 | EP0225325B1 Gravel spreading device for motor vehicles |
| 08/03/1988 | CN88100314A Auxiliary snow-chain device for motor vehicles |
| 07/27/1988 | CN87102508B Viscocity adding apparatus for railway vehicle |
| 06/22/1988 | CN87210959U Sand-spreading skid preventer for automobile |
| 06/21/1988 | US4751975 Anti-skid device for motor vehicles |
| 06/14/1988 | US4750680 Vertically controlled track sander |
| 06/01/1988 | DE3640771A1 Device for conducting away heat for motor vehicles |
| 05/24/1988 | US4745993 Centrifugal chain assembly for a motor vehicle |
| 04/21/1988 | DE3711595A1 Method for preventing aquaplaning in wheeled vehicles when travelling over very wet road surfaces at a high speed |
| 03/29/1988 | US4733891 Grit spreader for motor vehicles |
| 03/22/1988 | US4732239 Anti-skid device |
| 03/02/1988 | CN86101545A Moving and spreading system of protective film of rigid wheel |
| 02/11/1988 | DE3627141A1 Strewing device on a motor vehicle |
| 02/10/1988 | CN87102508A Viscocity adding apparatus for railway vehicle |