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| Number | Title | Issue Date |
| 7252347 | Belt over mid-rollers A wheel structure driven by an endless track belt tensioned around a drive wheel and an idler wheel thereof, comprising a plurality of supporting mid-roller wheels provided between the drive wheel and the idler wheel, a second endless belt being tensioned around thi... | 08/07/2007 |
| 7128378 | Coreless rubber crawler The object of the present invention is to provide a coreless rubber which ensures running stability by compensating shift (deviation) in the width direction even if prepared by combination of usual rollers, and which is easily and in low cost prepared by adoption of... | 10/31/2006 |
| 6030057 | Tractor endless tread Endless loops spaced lengthwise of elongated grouser-mounting plates of a tractor endless tread in which each loop includes two side-by-side stretches of wire rope having the interstices between the strands of both wire rope stretches filled with elastome... | 02/29/2000 |
| 5741052 | Tractor endless tread Endless loops spaced lengthwise of elongated grouser-mounting plates of a tractor endless tread in which each loop includes two side-by-side stretches of wire rope having the interstices between the strands of both wire rope stretches filled with elastome... | 04/21/1998 |
| 5641213 | Traction device for wheeled vehicle The rubber tire traction device comprises two lengths of transversely spaced apart link chains and a plurality of cross members extending between the chains. Each cross member has a central portion to contact a tire tread portion and a pair of end portion... | 06/24/1997 |
| 5186526 | One-piece crawler pad A one piece crawler pad has a substantially rectangular body portion having first and second narrow ends and first and second major surfaces. The interior space of a centrally located protrusion is sized to receive a portion of a chain link. Bolts passing... | 02/16/1993 |
| 5165766 | Tram chain connection link A connection link for coupling together the first and second chain links of a tram chain normally used to propel mobile articulating mining conveyors. The first and second tram chain links are hooked through a "U"-shaped member and are captively held in a... | 11/24/1992 |
| 5020865 | Endless drive track joint assembly An assembly for joining ends of a drive track of an endless track drive system includes at least one connector member or connector member belt situated within the endless drive track, one or two retaining rods situated between abutting ends of the endless... | 06/04/1991 |
| 5005922 | Double V-shaped endless track drive system An endless drive track for use on a track vehicle such as a bulldozer includes a plurality of polymeric endless track drive members, each drive member including a first lateral frictional drive face sloping inwardly with respect to a transverse direction ... | 04/09/1991 |
| 4863420 | Vehicular track drive assembly A sprocket and drive assembly for a tracked vehicle which includes individual track segments. Each track segment includes a rounded portion in the form of a number of spheres or a single cylinder, which is secured to an endless cable. The sprocket has a n... | 09/05/1989 |
| 4861120 | Modular endless track drive system and methods of making, installing and repairing same A modular endless track drive system for use on a track vehicle such as a bulldozer is made up of a number of polymeric drive modules interconnected with polymeric master links. Each drive module includes a plurality of drive members with lateral friction... | 08/29/1989 |
| 4844560 | Endless drive track joint assembly An assembly for joining ends of a drive track of an endless track drive system includes at least one connector member or connector member belt situated within the endless drive track, one or two retaining rods situated between abutting ends of the endless... | 07/04/1989 |
| 4752105 | Vehicle traction A resiliently flexible endless articulated track member for a vehicle includes a series of transverse track elements held together bead-fashion in abutting relationship under compression by a plurality of tensile core elements under tension. The said trac... | 06/21/1988 |
| 4645273 | Endless track flexor having cord reinforced tensile load-carrying plate A flexor for an endless track includes a tensile load-carrying core encapsulated in an elastomeric case and being in the form of a single plate wrapped lengthwise by a core having a tensile pre-load.... | 02/24/1987 |
| 4616883 | Endless drive system An endless drive system suitable for use, for example, as a tracked vehicle drive system, an endless belt or an endless chain drive system. A number of endless drive sections are interconnected by cable connector sections. The cable connector sections inc... | 10/14/1986 |
| 4615567 | Flexor for sections of endless track A flexor having its opposite ends clamped between respective link and grouser of adjacent track link sections includes a tensile load carrying core in the form of a pair of thin, generally rectangular plates. The ends of the plates where clamping bolts pa... | 10/07/1986 |
| 4569561 | Endless drive system An endless drive system suitable for use, for example, as a tracked vehicle drive system, an endless belt or an endless chain drive system. A number of endless drive sections are interconnected by cable connector sections. The cable connector sections inc... | 02/11/1986 |
| 4451097 | Track section including flexors A track-laying tractor drive track is composed of a plurality of sections which each include a link and a grouser bolted together in sandwiching relationship to a pair of side-by-side disposed flexors. The flexors each include a plurality of superposed, r... | 05/29/1984 |
| 4438982 | Ground-engaging contact element for endless-track vehicles A ground-engaging contact-element for endless-track vehicles in which the tracks comprise two separate drawing-elements (3) that run in parallel over wheels. A number of the contact-elements (1) are arranged between the drawing-elements (3). Each contact-... | 03/27/1984 |
| 3973807 | Wire cable chain with detachable traveling cushions A wire cable chain in which spaced links are connected by wire cables. Resilient cushion structures are provided extending between each pair of adjacent links. Each link has a transverse groove on the cushion structure side and each cushion structure has ... | 08/10/1976 |
| 3954308 | Divisible connector for track laying chains of track laying vehicles A divisible guiding and connector arrangement for track laying chains of track laying vehicles, in which tubular bodies surrounding sections of successive chain bolts between the pertaining chain links are vulcanized onto the aforementioned chain bolt sec... | 05/04/1976 |
