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| Number | Title | Issue Date |
| 7845740 | Unitized seal with integral spacer A unitized seal assembly is provided for installation between linkages of a chain drive designed for tracked vehicles. The seal assembly facilitates field preventative maintenance on the drive chain by utilizing an integral spacer that holds the critical sealing sur... | 12/07/2010 |
| 7367739 | Two component seal A pair of pivoting parts are held together with a pin, with a first part, such as a rod end of a hydraulic actuator, positioned between two flanges of a bracket, with the flanges having surfaces mating with sides surfaces of the rod end. A seal is placed in each of ... | 05/06/2008 |
| 7347513 | Cartridge assembly for a track chain of a track type machine and machine using same A cartridge bearing assembly for a track chain of a track type work machine is provided. The cartridge bearing assembly includes axial/radial load bearing insert members positioned about a pin, and a rotatable bushing positioned therebetween. Crowned sleeve bearings... | 03/25/2008 |
| 7121555 | Seal assembly and crawler-track connection structure A seal assembly has simple assembly structures, and provides secure sealing effects. A crawler-track connection structure allows the seal assembly to be easily mounted, and securely prevents overflow of a lubricant and the like to the outside. A pair of seal rings (... | 10/17/2006 |
| 7004474 | Seal for an endless track A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross se... | 02/28/2006 |
| 6382742 | Cartridge assembly for a track chain of a track type work machine A cartridge assembly for a track chain assembly includes a bushing having a passageway defined therethrough. The cartridge assembly also includes track pin having a longitudinal axis. The track pin is located within the passageway so that a first end port... | 05/07/2002 |
| 6089683 | Track bushing having laser cladding end treatment for improved abrasion and corrosion resistance, and a process A track bushing for an endless track of a track-type vehicle includes a cylindrical tubular shape, a first end and a second end, and first end and second bearing surfaces adjacent respective ends. A circumferential groove having a depth in an axial direct... | 07/18/2000 |
| 6074022 | Track bushing having arc welded end treatment for improved abrasion and corrosion resistance, and a process for making the same A track bushing for an endless track of a track-type machine includes a cylindrical tubular shape having a first end and a second end and a longitudinal axis. The track bushing further includes a first end bearing surface that is adjacent to the first end... | 06/13/2000 |
| 5763956 | End face track seal with dirt seal An end face seal for sealing between first and second articulately coupled members of a track joint is disclosed. The seal is provided with a flexible dirt shield of elastomeric material. The dirt shield extends radially outwardly from the seal ring and h... | 06/09/1998 |
| 5711586 | Track bushing assembly and method A track bushing for use with a track assembly of a track-type machine includes a generally cylindrical member having ends adapted for mounting in opposing end portions of a track link and a longitudinal bore extending between the ends. The inner surface o... | 01/27/1998 |
| 4402555 | Track-type vehicle undercarriage A track-type vehicle undercarriage comprising a track frame, a carrier rail mounted on the track frame, a track rail fixedly secured to the track frame underneath thereof, a recoil device mounted on the track frame, a support member fixedly connected to t... | 09/06/1983 |
| 4210339 | Seal and seal assembly A seal (16) has a body (38), a leg (40) and first and second sealing areas (42,44). The seal (16) is used in a seal assembly (10) having first and second members (12,14), such as, for example, a frame portion (20) and steering knuckle (27) of a work vehic... | 07/01/1980 |
| 4007972 | Sealed track joint A sealed track joint having a pin and a bushing and links assembled therewith. The links and bushing present a cavity in which an elastomeric seal is disposed and is shown to be of an S-shape in cross section and is compressed into the cavity.... | 02/15/1977 |
