Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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 |
| 7222651 | Tire for preventing rollover or oversteer of a vehicle A tire for preventing vehicle rollover or oversteer comprises a pair of bead portions, a pair of sidewall portions, a tread portion extending between the pair of sidewall portions, and a portion of low friction material positioned along an edge of the tread portion.... | 05/29/2007 |
| 7137675 | Road wheel for tracked vehicles A hollow-shell road wheel for tracked vehicles includes a generally triangular, outer circumferential cavity formed by an outer rim and two wall members that extend radially inward at angles to a generally planar flange at approximately the mid-radius point of the h... | 11/21/2006 |
| 7066562 | Grouser shoe and fabrication method A grouser shoe for track drives commonly utilized by industrial and commercial equipment (e.g., bulldozers, backhoes, cranes, etc.) including a supportive pad and a ground engaging bar, the ends of such bar being bent to form wings, and method of manufacture thereof... | 06/27/2006 |
| 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 |
| 6976742 | Drive sprocket for a tracked vehicle A snowmobile is propelled by an endless track that is operatively connected to the snowmobile's engine by two drive sprockets. Each drive sprocket includes one set of external teeth and two sets of internal teeth that engage three corresponding sets of track teeth f... | 12/20/2005 |
| 6923515 | Low noise track profile A track for a tracked vehicle, consisting of a track substrate. Terrain lugs are distributed about the circumference the track substrate on its outer surface. Drive profiles, each consisting of at least one drive lug arranged across the width of the track substrate,... | 08/02/2005 |
| 6905182 | Elastic crawler An elastic crawler has a crawler body formed like an endless belt out of an elastic material, a plurality of driving projections provided on an inner circumferential surface of the crawler body with a predetermined pitch in the circumferential direction thereof, and... | 06/14/2005 |
| 6843876 | Rubber to metal bonding method Tank treads, brake linings, rifles stocks, and other devices requiring the bonding of metal to rubber, epoxy, or plastic, with a layer of metal foam interposed between the metal and the rubber or plastic. ... | 01/18/2005 |
| 6733092 | Travel driving apparatus for a track-type vehicle A travel driving apparatus for a track-type earthmoving machine is provided which can reduce abrasion wear of a sprocket and a bushing and which enables easy replacement of worn members. A contact member is detachably mounted to an opposing surface of a track shoe t... | 05/11/2004 |
| 6471307 | Crawler belt type traveling system A crawler belt type traveling system which ensures improved durability in the portions near road wheel rolling contact sections. The system comprises crawler belts formed from an elastic material such as rubber and road wheels attached to a vehicle body. ... | 10/29/2002 |
| 6080493 | Rubber to metal bonding method Tank treads, brake linings, rifles stocks, and other devices requiring the bonding of metal to rubber, epoxy, or plastic, with a layer of metal foam interposed between the metal and the rubber or plastic.... | 06/27/2000 |
| 6076901 | Track shoe for an endless track vehicle A shoe for an endless track has an internal frame with an elastomeric coating. The frame includes tubular supports to receive a pivot pin for interconnection of adjacent shoes. The pin is located within the tubular supports by elastomeric bushings that ac... | 06/20/2000 |
| 5829850 | Crawler chain for tracked vehicles A track system for a track vehicle which has a crawler chain and a driving sprocket wheel. The chain has links each of which has a pin assembly with a bushing or one piece bolt the outer periphery of which at least is composed of a material consisting of ... | 11/03/1998 |
| 5636911 | Double drive sprocket An improved drive connection between the track and drive sprocket of a tr laying vehicle has a specially modified sprocket and track units. The track elements of the improved drive connection include links connecting the track units at their lateral, wel... | 06/10/1997 |
| 5632538 | Drive system for a caterpillar track A drive system for a caterpillar track (30) comprises a drive wheel (1) with rubber-mounted drive bodies (10) fixed thereto, the drive bodies (10) engaging the guide tooth root (65) of the chain link member (52). The flank (51) of the guide tooth (32) is ... | 05/27/1997 |
| 5593218 | Highly elastic rubber crawler The present invention relates to a highly elastic rubber crawler mounted on a mobile working machine, the crawler having improved durability, easily passing around a drive wheel and inflicting no damage on a paved road surface. Specifically, a highly elas... | 01/14/1997 |
| 5540489 | Rubber track assembly A rubber track assembly comprising a driving wheel, an idler wheel, an endless rubber track extending around the driving wheel and the idler wheel and having a plurality of rubber lugs formed on its outer circumference and a plurality of rubber guide proj... | 07/30/1996 |
| 5482365 | Rubber grousered track shoe A long life rubber grousered track shoe for track-type machines is disclosed. The track shoe has a steel shoe portion and a rubber grouser portion that is molded in situ to the steel shoe portion between a pair of steel grouser bars to protect the rubber ... | 01/09/1996 |
| 5413407 | Engagement member for track assembly components Disclosed is an improved structure for rubber bodies such as pads on track units or tires on road wheels for tracked vehicle such as tanks. The rubber bodies have an array of bores with metallic inserts recessed in the bores. The inserts stiffen the pad o... | 05/09/1995 |
| 4407551 | Replaceable wear cover for track bushing A replaceable wear cover for track chain bushings which covers and protectively shields the track bushing such that the wear cover, rather than the bushing, directly engages the metallic outer radial portions of the chain-driving sprocket wheel. The wear ... | 10/04/1983 |
| 4203633 | Reduced noise producing idler wheel A high speed tracked vehicle has a sprocket extending from each side thereof coupled to an engine through which driving power is supplied to each of a pair of driving tracks. The driving tracks are supported on either side of the vehicle hull by an idler ... | 05/20/1980 |
| 4150858 | Tensioned cushioning lug for track-type vehicles An endless track assembly for a track-type vehicle comprises a plurality of track shoes secured to an articulated chain. The links of the chain are pivotally interconnected together by pin and bushing assemblies adapted to engage a drive sprocket of the v... | 04/24/1979 |
| 4069856 | Crawler-type vehicle wheels having impact absorbing rims with resilient biasing means Wheels of a crawler-type vehicle have rims that are laterally movable relative to the axis in response to a force subjected on the rim. The rim is biased by resilient material to return to its normal position in response to removal of the force on the rim... | 01/24/1978 |
| 4056288 | Endless track for crawler vehicles An endless track for a track-type vehicle such as a crawler vehicle or the like, including an endless, tire-like, flexible carcass including a fluid receiving chamber that is at least partially collapsible, the chamber being defined by at least two cells ... | 11/01/1977 |
| 4055368 | Biasing element having one or more force stages A biasing element has a force transmitting material positioned within a chamber of a housing having deflectable walls. A piston contacts and moves the force transmitting material into forcible contact with the housing walls in response to movement of the ... | 10/25/1977 |
| 4035036 | Noise suppressing element for continuous track of crawler type vehicle and method of operating same A rotatable resilient contacting element attachable to track shoes of a crawler type vehicle.... | 07/12/1977 |
| 4034618 | Noise reducing apparatus for track type vehicle drive sprockets and means for attaching same Apparatus is provided for reducing the noise generated by the meshing of an endless track and a drive sprocket of a track type vehicle including a pair of annular treads of resilient material. The treads are mounted about the peripheries of a respective o... | 07/12/1977 |
| 4022072 | Sprocket device for use in a track-type tractor A sprocket device is provided in a track type tractor for driving endless tracks thereof. The device has a plurality of brackets fixedly secured to both side of the sprocket body along the periphery thereof at predetermined intervals, a plurality of buffe... | 05/10/1977 |
| 3994064 | Noise suppressing assembly for continuous track of crawler type vehicle A resilient contacting assembly attachable to track shoes of a crawler type vehicle. The contacting element is formed of a plurality of discs for improving the wear life of the contacting element.... | 11/30/1976 |
| 3955855 | Wear-resistant composite track link A track-type vehicle having a track made up of links with contact surfaces of high wear-resistant material engaging with the track rollers as the track is driven on the vehicle. The high wear-resistant material may be a composite alloy metallurgically bon... | 05/11/1976 |
| 3948573 | Crawler tractor track chain drive assembly A crawler tractor track chain drive assembly including a drive sprocket and a track chain having links and a track plate. An elastomeric member is confined between the links and the plate, but free of any screws or other fasteners for holding the member i... | 04/06/1976 |
| 3937528 | Segmented and cushioned idler for track-type vehicles and method for repairing same A track-type vehicle, such as a crawler tractor, comprises a pair of endless tracks mounted on either side thereof. Each of the tracks is entrained over a drive sprocket at its rearward end and over an idler at its forward end. The idler comprises a hub h... | 02/10/1976 |
