The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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 |
| 8424980 | Abrasion resistant track shoe grouser A track shoe for a track-type vehicle. The track shoe includes a base plate and a grouser projecting away from the base plate. A capping surface structure of substantially horseshoe shaped cross-section is disposed across a distal portion of the grouser. The capping... | 04/23/2013 |
| 7806487 | Noiseless rubber tracks for tracked vehicles A rubber track for tracked vehicles, comprising a rubber belt with an inner surface and a ground-engaging surface, the ground-engaging surface comprising a series of traction lugs spaced apart in a longitudinal direction of the track at a first pitch, the inner surf... | 10/05/2010 |
| 7422295 | Traction lugs for snowmobile drive track An endless drive track for a snowmobile is provided with traction lugs that are inclined relative to normal to the track base. When the traction lugs are inclined away from the direction of travel for the track, the traction lugs can compress the snow before engagin... | 09/09/2008 |
| 7367637 | Endless track for high speed multi-terrain vehicles The track design for use with a tracked vehicle includes a cantilever cut made down into the outward side of each tread just outboard of the position where the inside of the track contacts the outboard edge of the tread of the outer wheel of each pair of track-suppo... | 05/06/2008 |
| 7159955 | Traction band and sprocket for vehicles This invention relates to an endless traction band that is used to propel band laying vehicles [i.e., vehicles which use endless traction bands rather than tires to contact the terrain over which they are driven, e.g., tractors, tanks, bulldozers, etc.]. A novel spr... | 01/09/2007 |
| 7077485 | Rubber crawler A core-less rubber crawler has a guide protrusion protruding from an internal surface of a rubber main body in the shape of an endless belt, and the protrusion extends in the lengthwise direction of the rubber main body at the center with respect to the widthwise di... | 07/18/2006 |
| 7048344 | Endless track for a track-propelled vehicle The ground engaging outer side of an endless track of a track-propelled vehicle displays a series of longitudinally spaced profiles which are defined by a central portion and two opposite lateral portions; the rubber material of the lateral portions of the body has ... | 05/23/2006 |
| 7018005 | Vehicle track providing enhanced steerability A vehicle track includes an endless belt. A plurality of laterally-elongated propulsive lugs and longitudinally-elongated turning lugs extend outwardly from an outer side of the endless belt. The propulsive lugs provide substantially longitudinally facing surfaces t... | 03/28/2006 |
| 7014279 | Elastic flat tread The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, ... | 03/21/2006 |
| 6974196 | Endless track for industrial or agricultural vehicles Described is an endless track for an industrial or agricultural vehicle consisting of a body formed of a rubber material having an outer surface displaying a series of ground engaging profiles longitudinally spaced along the surface and an inner surface displaying a... | 12/13/2005 |
| 6935708 | Track for all terrain vehicle A track for a vehicle travelling on all terrain, especially those displaying ruts, is formed of an endless longitudinal body displaying a series of longitudinally spaced drive lugs on its inner surface and a series of longitudinally spaced profiles on its outer surf... | 08/30/2005 |
| 6932442 | Elastic-bodied crawler An elastic-bodied crawler, in which damages, such as local wear, coming-off of driven projections and the like in use, are prevented from being brought about, and frictional resistance is decreased at engaging portions to provide for durability, comprises a body wit... | 08/23/2005 |
| 6840588 | Non-repeating sequence of profiles This invention relates to an endless traction band that is used to propel snowmobiles and more particularly, to an improved ground-engaging side of the traction band, which helps reduce the noise and vibration levels during the operation of the snowmobile. The vario... | 01/11/2005 |
| 6722746 | Resilient crawler and method of manufacturing the same In a resilient crawler of this invention, sufficient flexibility at the portion between the lugs is obtained and such problems as separation of rubber are prevented while improving riding comfort by reducing the difference in rigidity between the portion where the l... | 04/20/2004 |
| 6609771 | Long track mountain snowmobile and a track therefor A novel mountain snowmobile comprises a frame, an engine disposed on the frame, at least one ski disposed on the frame, a seat disposed on the frame, a steering device disposed on the frame forward of the seat that is operatively connected to the at least... | 08/26/2003 |
| 6609770 | Caterpillar made of elastomer material A caterpillar made from elastomer material and having a plurality of guide teeth projecting from the inside surface of the caterpillar, the said guide teeth having lateral faces and front and rear faces in the longitudinal direction of the caterpillar, wi... | 08/26/2003 |
| 6536852 | Resilient crawler and method of manufacture the same In a resilient crawler of this invention, sufficient flexibility at the portion between the lugs is obtained and such problems as separation of rubber are prevented while improving riding comfort by reducing the difference in rigidity between the portion ... | 03/25/2003 |
| 6203125 | Track belt for snowmobile Disclosed is a track belt for a snowmobile, which comprises a track belt main body, a core body arranged along a longitudinal direction of the track belt main body, reinforcing woven cloths disposed respectively in the outside and inside of the core body,... | 03/20/2001 |
| 6109705 | Snowmobile drive track for traveling on icy and hardened snow surface A snowmobile drive track for travelling on various surfaces including icy surfaces, hardened snow surfaces and semi-hardened surfaces comprises an endless body having, on its ground engaging outer side, projecting profiles having peaks of different height... | 08/29/2000 |
| 6065818 | Rubber track belt with improved traction and durability A track belt assembly includes an elastomeric track member which forms a closed loop. The elastomeric track member is advanced in a path of movement when a work machine is advanced in the forward direction of movement. The track belt assembly further incl... | 05/23/2000 |
| 5984438 | Rubber track There is provided a rubber track used for an undercarriage of a vehicle, and particularly an improvement in a guide lug which protrudes from an inner peripheral surface of the rubber track. In the rubber track in which a plurality of rubber lugs are forme... | 11/16/1999 |
| 5908226 | Embossed wheel for snowmobile suspension assembly A guide wheel for use with the suspension assembly of a snowmobile vehicle is provided with an embossed rim surface. The later is formed of a succession of convex and concave surfaces, the convex surfaces contacting the inner side of the lower run of the ... | 06/01/1999 |
| 5713645 | Snowmobile track profile A snowmobile track comprises an endless belt of reinforced rubber composition and includes on its exterior surface an array of projecting ribs which form traction elements for engaging the snow surface. The ribs have a height of between 11/4 and 2 inches ... | 02/03/1998 |
| 5642921 | Adjustable height stud for use in a snowmobile track A snowmobile stud (12) having a tip (18) which permits adjustment of the degree of protrusion of the tip beyond the bottom surface (10) of the track (1). The stud (12) can be installed with the aid of a nut (20) placed within an oversized bore (19). Alter... | 07/01/1997 |
| 5352029 | Positively driven elastomeric tracked work vehicle A drive assembly for a track laying vehicle including a vehicle body (2), at least one track (9) mounted on and driven by wheels (5) rotatably mounted and driven on the vehicle body. At least one of the wheels is a drive wheel and the continuous elastomet... | 10/04/1994 |
| 4991911 | Track cleat A guide clip for a snowmobile track belt is fabricated from sheet steel and has a body with downwardly extending limbs that define a profile of inverted U-shape, with an integral guide lug projecting upwardly from one end of the body. The guide lug extend... | 02/12/1991 |
| 4714302 | Vehicle track A vehicle track intended to be driven over spaced toothed drive wheels, preferably of rubber, and be supported on supporting wheels, comprising longitudinal inner and outer traction members formed of the same piece of an elastomer material and extending i... | 12/22/1987 |
| 4687261 | Tracks for track-laying vehicles A light-weight track for a track-laying vehicle in which a flexible belt (11;64) has rigid driving members (28;61) secured to its inner surface for engagement with a drive sprocket (40,75). Successive driving members are staggered relative to the longitud... | 08/18/1987 |
| 4217006 | Drive belt assembly for snowmobiles A track or drive belt assembly primarily for use with snowmobiles. The drive belt assembly includes a unitarily formed, continuous or endless, flexible drive belt having an inner side and an outer ground engaging side. The unitary drive belt assembly incl... | 08/12/1980 |
| 3934944 | Ground engaging drive track apparatus for snowmobiles and the like A snowmobile drive track assembly includes an endless belt unit having a central drive belt section and laterally spaced belt sections interconnected by flat, spring-steel track bars. The several sections include longitudinally aligned ground-engaging dri... | 01/27/1976 |