...In 1790, the cost to obtain a patent was between $4 and $5.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7426949 | Tool-free tire traction device A traction device for vehicle tires is provided for when the vehicle is stuck in mud, snow, ice or similar terrain, comprising an adjustable support member having a first end and a second end; a connection member extending from the first end of the support member, w... | 09/23/2008 |
| 6095717 | Compaction wheel having replaceable cleats A compaction wheel includes a rigid cylinder forming an outer rim. Cleats are removably mounted in cleat-receiving apertures formal on the outer rim. Each cleat has a face plate configured to engage against the outer surface of the cylinder, a working por... | 08/01/2000 |
| 5795097 | Transfer station wheels A wheel for a powered vehicle operating along a hard brittle surface is equipped with cleats 21 having non-metallic wear tips 31 mounted upon a metallic base 36 welded to the wheel circumference 10. The material forming the wear tips 31 has density and ha... | 08/18/1998 |
| 5217322 | Tooth for compactor wheel Teeth for compactors are normally utilized to crush and/or grind refuse material and/or soil being worked and to effectively compact the refuse material and/or soil being worked. It is also advantageous to insure that the teeth being used provide traction... | 06/08/1993 |
| 5078454 | Wheel or endless track A ground engaging apparatus in the form of a wheel for a vehicle, comprising a rim (11) and a plurality of ground engaging elements (13) mounted on the rim. Each ground engaging element (13) comprises a hollow body (31) having an inner face (32) in engage... | 01/07/1992 |
| 4919489 | Cog-augmented wheel for obstacle negotiation A vehicle for overcoming obstacles includes a wheel having an elastomeric flexible annulus upon which the wheel normally rides. Parallel spaced sprockets receive the annulus and include individual cogs which extend less radially outwardly than the annulus... | 04/24/1990 |
| 4919566 | Fill and compaction roller using readily replaceable cleat assemblies A compaction roller includes improved cleat assemblies which employ readily removable wear caps. One style of cleat assembly employs means inhibiting twisting of the cap unit about vertical and horizontal axes relative to a support base.... | 04/24/1990 |
| 4747438 | Structure of automobile tire friction-increasing auxiliary device The present invention relates to an improved structure of an automobile tire auxiliary device, especially relates to such a device capable of holding the tire to step up the friction force of the tire through a recess and an adjustable lug on the claw pla... | 05/31/1988 |
| 4735038 | Lawn mower stabilizing devices for use in mowing steep terrain Ground and/or turf penetrating discs for selective attachment to wheels of a lawn mower to increase safe operation of such lawn mowers on embankments. The ground engaging discs, are for selective secured engagement over the hub and tread of one or more of... | 04/05/1988 |
| 4668122 | Two bolt taper cleat An off-the-road landfill compactor has large wheels with two piece cutting cleats the inner portion of which are attached to the outer surface of the wheels. The outer, replaceable portion of the cleat is secured to the inner portion by bolts which are di... | 05/26/1987 |
| 4589252 | Steep terrain stabilizing devices for lawn mowers Ground penetrating discs for selective attachment to wheels of a lawn mower to increase safe operation of such lawn mowers on embankments in which the ground engaging discs are selectively secured in engagement over the hub and tread of one or more of the... | 05/20/1986 |
| 4515198 | Means for detachably connecting a chain link to a skidder ring Simplified means for connecting skidder rings to the tag chains that hold the skidder rings in spaced positions around a tractor wheel. Each skidder ring has four hooks spaced approximately 90° apart, two at each side, of novel construction. Each hook is... | 05/07/1985 |
| 4066375 | Replacement cap for compactor wheel A replacement cap for use on the tip of a compaction wheel foot. The cap includes a pair of half-caps weldable together on the end of the tip. The half-caps are generally rectangular and are formed with inner end portions having facets which abut to form ... | 01/03/1978 |
| 3937262 | Sure grip winter tire traction device The device is for attachment to a vehicle tire to improve traction on ice or snow. The device is constructed from a circumferential segment of preferably a used tire and includes a plurality of studs extending through the tread area of the tire, one end o... | 02/10/1976 |