Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
PatentStorm News
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 |
| 8100158 | Off-road tire with tread having blocks and recesses An off-road tire (1) comprises a tread portion (2) provided with blocks (10, 11) forming a sea area (8) therearound. The sea area (8) is provided in the bottom (14) thereof with recesses (13), wherein the recesses ( | 01/24/2012 |
| 7503360 | Radial farm tire for high clearance sprayers A high aspect ratio agricultural pneumatic tire has a carcass including a pair of bead portions each having a bead core and two pair of first and second carcass plies of synthetic cords oriented radially and wrapped from the inside of each bead core around to an axi... | 03/17/2009 |
| 7434605 | Tire for heavy vehicle The invention relates to a tire for heavy vehicle of the agricultural or construction type, comprising a carcass reinforcement radially surmounted by a crown reinforcement, itself topped radially by a tread, said tread being joined to two beads by means of two sidew... | 10/14/2008 |
| 7350551 | Motorcycle tire with tread having main blocks and lower height sub blocks A motorcycle tire is provided that is capable of remarkably improving a traction characteristic and an anti-sideslip characteristic for cornering without deteriorating the mud expulsion characteristic especially on a dirt road. In embodiments, a motorcycle tire has ... | 04/01/2008 |
| 7134467 | Low net to gross OTR tire A pneumatic off-the-road (OTR) tire has a plurality of central and shoulder lugs. The central lugs are arranged in a circumferentially continuous row and extend across the equatorial plane (EP). Each central lug is similar in shape and orientation relative to each c... | 11/14/2006 |
| 7128110 | Agricultural wheel tire An agricultural wheel tire has a tire tread having first and second lateral edges defining the width of the tire tread, and two sets of lugs. Each lug of the first set extends from a center of the tread width and terminates at the first lateral edge of the tire trea... | 10/31/2006 |
| 7096904 | Off road tire having variable width puncture preventing pads This invention relates to off-road tires, more specifically off-road tires for use with all-terrain vehicles, agricultural equipment, and construction equipment. A plurality of elongated pads are interposed between circumferentially adjacent lugs, preventing damage ... | 08/29/2006 |
| 7048022 | Tire tread with anti-puncture pads A pneumatic tire has a tread designed primarily for off-road activities, comprising large lugs. The tread can be defined as having a central tread width that is divided into a central tread zone and opposing lateral tread zones. The tire also has shoulder regions ex... | 05/23/2006 |
| 6941990 | Off-road tires having sidewall anti-puncture pads Pneumatic off-road tires having structure for improving sidewall puncture resistance to penetrating objects. The structure may include multiple deflection pads arranged concentrically about the sidewall or a single deflection pad extending in a spiral about the side... | 09/13/2005 |
| 6938659 | Runflat tire having crown-reinforcing insert extending into the sidewalls A pneumatic tire has a crown-reinforcing insert which extends from under the tread substantially, such as at least one-third of the sidewall height, into the sidewall of the tire. Apexes extend from the beads substantially, such as at least one-third of the sidewall... | 09/06/2005 |
| 6929044 | All-terrain vehicle tire An All Terrain Vehicle Tire (10) for the drive axle positions has a tread (12) having three circumferentially continuous channels (61 62, 63). Two of the channels (62, 63) divide the elongated lugs (40, 42) into an axially inner po... | 08/16/2005 |
| 6845796 | Cushion tire A cushion tire is formed from a rubber material without being provided with an airspace inside the tire. An aspect ratio, which is a ratio of a sectional height of a tire with respect to a width of the tire, is set to 15 to 80%. And a number of holes are formed in b... | 01/25/2005 |
| 6838511 | Tire with configured rubber sidewall designed to be ground-contacting reinforced with carbon black, starch and silica This invention relates to a pneumatic rubber tire having a circumferential rubber tread of a lug and groove configuration which extends to a substantial portion an adjacent rubber sidewall and is designed to be ground-contacting. Said lug and groove configured porti... | 01/04/2005 |
| 6761196 | Pneumatic tire having lug grooves An auxiliary groove is formed in tire circumferential direction on a tire central plane of an pneumatic tire according to the present invention. This auxiliary groove is formed, whereby a negative ratio of a center region other than the lug groove is set to 10% to 2... | 07/13/2004 |
| 6748988 | Pneumatic tire having lug grooves A pneumatic tire having a tread pattern is provided, in which occurrence of uneven wear observed in a conventional lug-type tread pattern can be prevented without causing degradation in the various characteristics of the tire. The pneumatic tire having a tread patte... | 06/15/2004 |
| 6705366 | Pneumatic tire including headland part A pneumatic tire having a directional tread pattern of a designated rotating direction comprises at least one circumferential main groove at a central region of a tread portion, a circumferential sub-groove at each of side regions of the tread portion, a plurality o... | 03/16/2004 |
| 6672350 | Tire with shock absorbing configured rubber tread The invention relates to a pneumatic rubber tire with an outer, circumferential tread wherein said tread has a tread configuration comprised of spaced apart, raised lugs designed to be shock absorbingly ground contacting, wherein said tread and lugs are c... | 01/06/2004 |
| 6655430 | Low pressure tire with a low angle restrictor belt A low pressure tire 20 for off road use has a carcass 21 reinforced with carcass plies 22 and a composite structure including a tread 32, a belt or breaker reinforcement 26 and one or more low angle cord reinforced layers 60.... | 12/02/2003 |
| 6651712 | Variable pitched tread for ATV tire An all-terrain vehicle tire (10) operated at 4 psi (0.3 bar) or less inflation pressure has a plurality of lugs (44) arranged in a pitched pattern for noise reduction. The ratio of small (S), medium (M) and large (L) pitches are preferably arranged with a... | 11/25/2003 |
| 6536490 | Off-road tire having a textured inner tread This invention relates to off-road tires 10, more specifically, one embodiment of this invention relates to an all-terrain vehicle tire 10 having an inner tread 13 with a textured surface 15.... | 03/25/2003 |
| 6530404 | Runflat all terrain tire An all terrain vehicle tire (10) has an annular tread (12) and a casing (11) radially inward of the tread (12). The tread (12) has a plurality of tread lugs (92, 94) and a central rib (95). The plurality of tread lugs (92, 94) are disposed on each tread h... | 03/11/2003 |
| 6481479 | High aspect agricultural or off-road tire As agricultural tire 20 for the driveaxle of a vehicle has an aspect ratio of greater than 95%. The tire 20 has a nominal rim diameter of 20 inches or greater.... | 11/19/2002 |
| 6450221 | Non-directional farm tire A non-directional farm tire 10 has a tread 32. The tread 32 has a set 60 having three lugs 50A, 50B, 50C. The lugs 50A and 50B have substantially parallel lug centerlines 63 while the lugs 50C have centerlines 63 generally perpendicular to the centerline ... | 09/17/2002 |
| 6401774 | Off-road tire having puncture preventing pads This invention relates to off-road tires, more specifically, a preferred embodiment of this invention relates to a pneumatic all-terrain vehicle tire having puncture prevention pads 72.... | 06/11/2002 |
| 6382284 | Farm tractor having asymmetric directional drive axle tires A farm tractor has a vehicle having a pair of pneumatic agricultural tires 20 having an asymmetric directional tread 32 with lugs 50A,50B,50C arranged in a chevron type pattern 70,72. The chevron pattern 70,72 is asymmetric having the apex or point 74 lyi... | 05/07/2002 |
| 6298890 | Off-road tire An off-road pneumatic tire 10 having a tread 12 with a plurality of lugs 14, each lug 14 having a wide section 22 near at least one shoulder of the tread and a narrow section 24 crossing a centerline of the tread. In a preferred embodiment, each lug 14 ha... | 10/09/2001 |
| 6293323 | Off-road tire An off-road pneumatic tire 10 having a plurality of lugs 14 extending from a first shoulder 16 to a second shoulder 18. The plurality of lugs 14 are separated by a plurality of wide grooves 20. The tire 10 has at least a first lug 22 and a second lug 24. ... | 09/25/2001 |
| 6263933 | Industrial service agricultural tire A pneumatic agricultural tire (20) for an industrial type tractor or like vehicle has a plurality of central lugs (60) and a plurality of shoulder lugs (40, 50). The plurality of central lugs (60) are arranged in a circumferentially continuous row and ext... | 07/24/2001 |
| 6260594 | Industrial service pneumatic tire A pneumatic tire (20) for small construction type vehicle has a leading edge projection (47, 67) extending from the lugs (40, 60) to provide a wear pad and pivot position for improved ride and durability performance.... | 07/17/2001 |
| 6209602 | Industrial service agricultural tire A pneumatic agricultural tire 20,200 for an industrial type tractor or like vehicle has a plurality of central lugs 50 and a plurality of shoulder lugs 40. The plurality of central lugs 50 are arranged in a circumferentially continuous row 60 and extend a... | 04/03/2001 |
| 6179027 | Agricultural pneumatic tires having directional lugs An agricultural pneumatic tire comprises a tread provided with many lugs extending at a given inclination angle from a central portion of the tread toward both ends of the tread and alternately arranged right and left with respect to an equatorial plane a... | 01/30/2001 |
| 6062282 | Asymmetric directional pneumatic agricultural tire A pneumatic agricultural tire 20 has an asymmetric directional tread 32 with lugs 50A,50B,50C arranged in a chevron type pattern 70,72. The chevron pattern 70,72 is asymmetric having the apex or point 74 lying entirely on one-half 32A or 32B of the tread ... | 05/16/2000 |
| 6021829 | All-terrain-vehicle tire An all terrain vehicle tire 10 has a tread 12 specifically designed for mud traction. The tread 12 has four circumferentially repeating rows 1,2,3,4 of elongated lugs 40,42, two shoulder rows 1,2 and two central rows 3,4. Adjacent the axially outer ends 4... | 02/08/2000 |
| 5901765 | Pneumatic agricultural tire A pneumatic agricultural tire 20 has a tread 32 having a plurality of central lugs 50 arranged in a circumferentially continuous row and extending across the equatorial plane. Each central lug 50 is similar but oppositely oriented relative to each circumf... | 05/11/1999 |
| 5464050 | Non-directional pneumatic tire for use on agricultural tractors and other like vehicles A pneumatic agricultural tire 20 having a unique non-directional tread 32 is disclosed. The tread 32 has a plurality of lugs 50. The lugs 50 are arranged in sets 60 of at least three preferably four lugs having substantially parallel lug centerlines 63, t... | 11/07/1995 |
| 5421388 | Pneumatic tire for use on agricultural tractors and other like vehicles A pneumatic agricultural tire 20 having a unique tread 32 is disclosed. The tread 32 has a plurality of lugs 50. The lugs 50 are arranged in two sets 60,62 of at least three axially adjacent substantially parallel lugs 50A,50B,50C, the sets 60,62 being re... | 06/06/1995 |
| 5411067 | Pneumatic tire for use on agricultural tractors and other like vehicles A pneumatic tire 20 is disclosed. The tire 20 has a carcass 21, a belt reinforcement member 26 disposed radially outwardly of the carcass 21, an annular tread 32 disposed radially outwardly of the belt reinforcing member 26, the tread 32 having a net-to-g... | 05/02/1995 |
| 5375640 | Pneumatic tire for offroad vehicles An all terrain vehicle tire has an improved tread including primary lugs arranged in sets equally spaced around the periphery of the tire on each side of the tire centerline with each set including a long lug and a short lug, with the sets on opposite sid... | 12/27/1994 |
| 5337816 | Pneumatic agricultural tire An improved pneumatic agricultural tire (10) having a maximum section width (SW), an equatorial plane (EP) and a rim diameter (D) of 24 (61 cm) inches or greater is described. The tire (10) is particularly well suited for use as an irrigation tire. The ti... | 08/16/1994 |
| 5337814 | Agricultural tire comprising lugs of defined height and inclination An improved pneumatics radial drive tire 10 for agricultural use under dry and wet or moist soil conditions requiring a tire with high flotation and deep tread characteristics is described. The improvement comprises utilizing a tread 13 with a net-to-gros... | 08/16/1994 |
