Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 6951373 | Crawler belt and seal for use therein A seal (21) is constituted by an outer lip portion (22) to be held in abutting engagement with an outer link portion (9) of a crawler belt (7), an inner lip portion (23) to be held in abutting engagement with a bush (11), an... | 10/04/2005 |
| 6932732 | Toothed belt wheel with a collar A cog belt pulley defining an axis of rotation having an outer circumferential surface oriented about the axis of rotation and including a plurality of teeth for engagement with at least one cog belt. The pulley is distinguished in having at least one flange segment... | 08/23/2005 |
| 6848757 | Elastic crawler traveling apparatus and sprocket for crawler belt used in the same An elastic crawler traveling apparatus having an elastic crawler in a shape of an endless belt, a sprocket for a crawler belt arranged to be brought into contact with an inner face of the elastic crawler, a driven wheel, and a rolling wheel, the elastic crawler incl... | 02/01/2005 |
| 6402268 | Endless belt for use with heavy duty track vehicles An endless belt for use with a heavy duty track vehicle comprises a body made of polymeric material wherein a series of longitudinally spaced guide members are integrally formed to the inner surface thereof while two rows of longitudinally spaced tread me... | 06/11/2002 |
| 6322473 | Drive sprocket which has rotating members which are engaged by drive lugs of a track A drive mechanism includes a drive shaft and a sprocket drive assembly. The sprocket drive assembly includes a hub mechanically coupled to the drive shaft, a first side support secured to the hub, a second side support secured to the hub, and a plurality ... | 11/27/2001 |
| 6120405 | Drive sprocket which has rotating members which are engaged by drive lugs of a track A drive mechanism includes a drive shaft and a sprocket drive assembly. The sprocket drive assembly includes a hub mechanically coupled to the drive shaft, a first side support secured to the hub, a second side support secured to the hub, and a plurality ... | 09/19/2000 |
| 5899825 | Drive system for "caterpillar" vehicle A drive system for a "Caterpillar" vehicle has at least one elastic belt track which is driven by a drive gear in accordance with the principle of a frictional connection, and a further gear which is supported coaxially to the drive gear so that the drive... | 05/04/1999 |
| 5484321 | Radio-controlled track vehicles An improved radio-controlled track-driven vehicle comprises an innovative belt drive structure in which the rear wheels engage with the belt in positive drive, and the front wheels engage with the belt in frictional drive. According to one embodiment of t... | 01/16/1996 |
| 5348515 | Sprocket wear indicator A wear indicator for a sprocket adapted to have an endless track arranged in driving association therewith. The sprocket has opposite side surfaces and a series of sprocket teeth disposed peripherally about the sprocket. Each sprocket tooth has a tip with... | 09/20/1994 |
| 5259821 | Linear spacing device A linear spacing device has first and second elongated components, which may be telescoping hollow tubes, each having linear surfaces engaging each other in sliding relationship. Each component has spaced holes disposed at regular linear intervals along i... | 11/09/1993 |
| 5254047 | Chain take-up apparatus An apparatus for adjusting the operable position of a roller means adapted to engage endless driven elements such as chains, belts, and the like. The apparatus includes a sprocket carrying assembly that is operably connected to the chain engaging sprocket... | 10/19/1993 |
| 5045030 | Guide and tensioning device for endless track vehicles An endless track assembly for a vehicle includes a support plate having an elongated, horizontal guide slot formed in one end thereof. A support is slidably mounted in a guide groove and an idler sprocket is rotatably mounted on a support. The drive sproc... | 09/03/1991 |
| 5015219 | Roller belt arrangement for caterpillar track-type vehicles A roller belt arrangement for caterpillar track-type vehicles and having several rotating belts that are connected via grippers that guarantee a positive drive and are secured to the belts via screw bolts. To prevent lateral bulging of the belt from occur... | 05/14/1991 |
| 4950211 | Track drive sprocket wheel for snow grooming vehicle A continuous track drive sprocket wheel for snow traversing vehicles being adapted to reduce track instability and improve track retention upon the vehicles. The sprocket wheel has an enlarged toothed flange providing improved guiding contact with the gro... | 08/21/1990 |
| 4881930 | Sprocket assembly A drive sprocket assembly for driving an endless chain assembly for propelling a vehicle includes a housing, which is mountable to the power drive system of the vehicle, and a plurality of replaceable teeth structures which are secured to the housing. The... | 11/21/1989 |
| 4856853 | Endless belt-type drive mechanism A drive mechanism comprises an endless belt wrapped around a drive wheel. The drive wheel includes flat facets formed on its outer surface which are arranged to become superimposed relative to plate-like shoes mounted on the belt to impart a positive driv... | 08/15/1989 |
| 4585431 | Sprocket assembly for a track type vehicle A sprocket assembly is disclosed for use as a drive or idler wheel for the endless tracks of a track type vehicle. Included is an inner rim rigidly and concentrically mounted to a hub and having a series of studs projecting radially outwardly therefrom at... | 04/29/1986 |
| 4538860 | Wear resistant wheel for track laying vehicle An aluminum or aluminum alloy wheel is disclosed for use in a back-to-back support wheel assembly in a track laying vehicle. Studs are embedded in the wheel rim edges 30 to reduce wear at the point of contact by the horns 34 of the track 36.... | 09/03/1985 |
| 4511186 | Sprocket wheel assembly of endless track-type vehicles A sprocket wheel assembly of a crawler vehicle which comprises a first inner tube mounted on a drive shaft, a second inner tube rotatably mounted on a final reduction gear casing and fixedly connected with the first inner tube, and an outer tube disposed ... | 04/16/1985 |
| 4472164 | Sprocket wheel A sprocket wheel for a tracked vehicle, the sprocket wheel being in the form of an annular body having teeth integrally moulded of elastomeric material, the teeth including metal inserts moulded therein and providing track engaging surfaces in the inter-t... | 09/18/1984 |
| 4425007 | Tread belt link and cooperating drive tumbler A drive system comprising an endless tread belt made up of identical tread belt links and a cooperating drive tumbler is disclosed. The link is formed with a ground engaging bottom face, a drive wheel engaging top face, and connecting ears along its forwa... | 01/10/1984 |
| 4371362 | Track roller system A track roller system includes a replaceable rim assembly made up of two groups of multi-segments held to the hub in axially spaced position by a multi-segment retainer in the central space between the groups of rim segments, the rim segments retained aga... | 02/01/1983 |
| 4355988 | Track roller for track-laying vehicles Track roller for track-laying vehicles such as excavators having a shaft, a roller body rotatably supported thereon, two caps for limiting relative axial movement of shaft and roller body, and end pieces for attaching the track roller to the frame. The sh... | 10/26/1982 |
| 4351380 | Track belt assembly The track belt assembly of the present invention comprises a plurality of shoes spaced about the periphery of a load-supporting structure. A reinforcing belt structure is disposed on the side of the shoe opposite the ground-engaging side thereof. Each sho... | 09/28/1982 |
| 4332573 | Sprocket wheels of an endless track-type vehicle A sprocket wheel of an endless track-type vehicle has a hub and a plurality of sprocket teeth segments fixedly secured to the outermost of the hub to engage a plurality of bushings of an endless track for driving the same. The hub comprises a substantiall... | 06/01/1982 |
| 4278303 | Force and noise isolating apparatus for continuous track system A wheel (16) in a continuous track assembly (12) has a hub (18) and a rim (20) connected to the hub (18). First apparatus (29) engages a track (14) of the assembly (12) to drive an associated work vehicle (10). Second apparatus (42) mounts the rim (20) in... | 07/14/1981 |
| 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 |
| 4103558 | Bogie wheel A bogie wheel which has a wheel body composed of laterally spaced radial flanges. The flanges are mounted on a shaft by sealed bearings. A rim extends about the periphery of the flanges. A tire is molded or adhered to the rim.... | 08/01/1978 |
| 4087136 | Track-type vehicle wheel having controlled impact resistance A wheel of a driven track of a track-type vehicle has a rim connected to a hub with an annular chamber formed between the rim and the hub. A plurality of annular springs are positioned in the chamber and actuated by plungers in response to contacting a po... | 05/02/1978 |
| 4083247 | Apparatus for reducing noise of a carrier roller A noise reduction apparatus for a carrier roller in a crawler tractor, which includes first and second dimpled, annular guard members, each having a steel plate with a noise-absorbing member bonded thereto, and a third annular guard member having a noise-... | 04/11/1978 |
| 4081202 | Noise reduction device for a chain drive mechanism An improved noise reduction device for a chain drive mechanism is disclosed having a rotatable sprocket with a plurality of peripheral teeth thereon, a chain having a plurality of pivotally coupled links arranged in opposite pairs and a plurality of teeth... | 03/28/1978 |
| 4080008 | Biased actuating wheels Drive or driven wheels of a track-type vehicle have a hub and a plurality of teeth around the outer periphery each of which are spaced one from the other by an intervening root having an opening. A biasing hoop assembly having a multiplicity of generally ... | 03/21/1978 |
| 4058352 | Track-type vehicle wheel having impact resistance means A wheel of a driven track of a track-type vehicle has a rim connected to a hub with an annular chamber formed between the rim and the hub. An annular spring is positioned in the chamber and actuated by plungers in response to contacting a portion of the t... | 11/15/1977 |
| 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 |
| 4016772 | Sprocket member configuration An improved sprocket configuration for use in a track-type vehicle drive. The tooth configuration and tooth pocket configuration accommodate packing of the pocket and permit limited displacement of the chain without excessive wear of the chain bushings. T... | 04/12/1977 |
| 3996810 | Track supporting roller with resilient rim A rotatable track supporting member for a track-type vehicle has a hub rotatably carried upon a track frame of such vehicle and a rim which is constructed from segmented resilient material so as to reduce the amount of noise generated by the running engag... | 12/14/1976 |
| 3993356 | Track carrying wheels for crawler type vehicles having improved panel assemblies A wheel for carrying continuous track of crawler type vehicles has a set of spaced pairs of inner and outer panel members that are connected together through vibration barriers. One of the inner or outer panels is formed of a laminate.... | 11/23/1976 |
| 3989314 | Wheel of track assembly of a crawler type vehicle A wheel of a track assembly of a crawler type vehicle has a resilient contacting element fixed about the wheel rim by first and second anchors. The anchors are slidably movable along angular end portions of a rim opening for securing the contacting elemen... | 11/02/1976 |
| 3979154 | Track wheel for crawler type vehicles A track wheel of a crawler type vehicle has a plurality of first and second plates spaced at preselected locations for suppressing vibration of and resultant noise emitting from panels of the wheel.... | 09/07/1976 |
