Class 305/104 - And at connector pin

Subclass of Class 305 - Wheel substitutes for land vehicles
Definition: Apparatus wherein the seal is located about a pivot pin
No. of patents: 37
Last issue date: 02/14/2012

Number	Title	Issue Date
8113597	Track joint seal system A track joint seal system comprises a pin (43) having, at each end, a first track link (41) rotatably coupled to the pin by means of interposition of a bushing (49) and an end element (42) coupled to the end of the pin (43); the en...	02/14/2012
8100483	Machine and track assembly for use therewith A track assembly for a machine includes a track having inner track seals, a rotatable track engaging element such as an idler or drive sprocket and a contact interface for protecting the seals during guiding the track about the rotatable element. The contact interfa...	01/24/2012
7959239	Track assembly having wear inhibiting contact members A track assembly for a track-type machine is disclosed. The track assembly includes inner and outer track links. A rotatable bushing is positioned about a track pin and a sleeve bearing is positioned about the track pin. A first seal member is disposed between an in...	06/14/2011
7850256	Dual-bushing track chain cartridge An endless track chairs for use with a track-type vehicle comprises a cartridge joined to the links of first and second link sets for relative rotation between the link sets. ...	12/14/2010
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
7325889	Track having rotatable bushing and link for the same In a track with a rotatable bushing which is brought into engagement with a sprocket of a track-type vehicle, it is intended that strength is enhanced rationally by link functionality sharing and by combination of such assigned functional tasks for achieving further...	02/05/2008
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
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
6406029	Seal assembly having an encapsulated cone spring A seal ring having a frustoconical spring completely encapsulated within an annular body provides a bias force to an annular lip seal of the annular body to assure positive contact with an opposed face of an adjacently disposed member of a joint assembly....	06/18/2002
6390572	Crawler belt The present invention concerns a crawler belt (7) incorporating a sealing devices (21), which are each constituted by a coned disc spring (23) and a seal ring (22), to seal up gap spaces between track links (8) and bushes (13). A seal anchor hole (12) is ...	05/21/2002
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
6045200	Track bushing having improved abrasion and galling resistance A track assembly for a track-type machine includes a track bushing that defines first and second end portions and first and second sealing end faces that are defined by the respective end portions. The track bushing also defines a bore that extends theret...	04/04/2000
5257858	Inboard track joint retention apparatus Joint retention apparatus is disclosed for preventing axial end-play movement of the outboard end collars of track links on the opposite ends of the track pins of track for track-type vehicles. The retention apparatus is located inboard of the pin ends so...	11/02/1993
5183318	Endless track chain for track-type vehicles An endless track chain with a rotatable bushing is disclosed that utilizes sleeve bearings for rotatably mounting the inboard end collars of the links about the pin. The joint of the track chain is sealed and lubricated. Sealing rings for the joint incorp...	02/02/1993
5069509	Endless track chain with rotatable sleeve An endless track chain is provided with a rotatable sleeve that is mounted about the track bushing to provide the track with longer external bushing life. The rotatable sleeve is sealed and lubricated, as is the standard track joint. However, each is sepa...	12/03/1991
4607854	Oil seal for lubricated track chain joints, particularly for track type vehicles In an oil seal for lubricated track chain joints, particularly for track-type vehicles, of the type with a flanged primary ring of a flexible material and a secondary ring of a resilient material, the annular portion (6) of the flanged primary ring (5) ca...	08/26/1986
4582366	Lubricant seal for track linkage Where successive track links are connected together, each of a pair of first links has a radial end wall with an annular recess. A cylindrical tubular pin is firmly press-fitted into cylindrical openings through each first link. Into each of a pair of sec...	04/15/1986
4575914	Assembly-procedure and relative hinge-assembly for use with lubricated-type crawler tracks The hinge-assembly to which the invention relates has a sleeve (3) located about the central section of a hinge-pin (2), and two thrust-rings (7) associated as one with the pin itself and abutting the ends (33) of the sleeve, the rings themselves housing ...	03/18/1986
4461488	Seal for link of track chain A chain-track link assembly has a pin extending along and defining an axis, an outer link element fixed to the pin and forming therewith an axially open annular recess having an annular end face lying substantially in a plane perpendicular to the axis and...	07/24/1984
4457521	Reinforced track pin assemblies and seals therefor An end face seal especially adapted for use in severe service environments such as for sealing track pins of crawler type tractors. The seal includes a primary annular seal, having a radially extending flange portion for contacting a mating surface in fac...	07/03/1984
4426091	Track joint seal assembly with interlocked thrust ring A seal arrangement for use in a track joint having a track pin and a cylindrical bushing on the pin and two track links. The end of the bushing and one of the track links present annular surfaces faced toward each other and spaced apart. The seal arrangem...	01/17/1984
4295654	Seal assembly for a linkage A seal assembly for a joint of each pair of adjacent links of an endless track assembly comprising a wear-resistant elastomeric seal ring and a resilient elastomeric load ring. A wear-resistant annular plate is bonded to one of the members of the joint. T...	10/20/1981
4270759	Combination thrust washer and seal article, apparatus and method A thrust washer is combined with a seal for preventing contaminants from entering into the assembly and doing corrosion damage. In one embodiment, a spring shackle bracket assembly thrust washer is provided with an elastomeric seal bonded thereto and havi...	06/02/1981
4262970	Seal assembly PCT No. PCT/US79/00724 Sec. 371 Date Sept. 14, 1979 Sec. 102(e) Date Sept. 14, 1979 PCT Filed Sept. 14, 1979 A seal assembly wherein a resilient seal (84) is disposed within an open annular recess (82) defined in a first member (56). A second member is di...	04/21/1981
4256316	Joint sealing structure PCT No. PCT/US79/00844 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979 PCT Filed Oct. 15, 1979 A joint sealing structure (19,119,219) for use in sealing relatively axially movable members (11,14) of a joint (10) over a wide range of such axial ...	03/17/1981
4240642	Belleville spring-loaded crescent seal PCT No. PCT/US80/00022 Sec. 371 Date Jan. 11, 1980 Sec. 102(e) Date Jan. 11, 1980, PCT Filed Jan. 11, 1980. A sealing structure (10) for use in providing a wide temperature range seal between relatively movable first and second joint members (12,13).The s...	12/23/1980
4216973	Seal An improved bearing seal (29) for use in a vehicle (10), such as a tractor, for preventing contamination of a pivot shaft bearing (23) or the like, which may be subjected to dirt, particulate matter, etc. The bearing seal (29) includes a lip seal (30), a ...	08/12/1980
4201393	Linked chain with improved sealing rings A chain having a number of link units each of which includes a pin connecting a pair of outer link plates and a bush connecting a pair of inner link plates, between which a lubricating oil is held and sealed with a sealed ring interposed between the outer...	05/06/1980
4189158	Gas loaded face seal A seal (44,144) between two relative movable structures (14,30) is provided. The seal has a hollow chamber (50) which is gas filled either permanently or when desired. The seal (44,144) has a driving portion (46,146) which may be of the same or of differe...	02/19/1980
4179130	Seal assembly for track-segment pivot A seal assembly for the pivot of a track of a tracklaying vehicle comprises an annular U-section nonmetallic and elastomeric seal and a metallic load ring received in the groove formed between the sides of the seal which bear in turn on a pair of axially ...	12/18/1979
4094515	Seal device in a roller chain A seal device in a roller chain characterized in that an annular body rich in rubber-like elasticity of substantially X-letter or Y-letter section formed with square lips in an outer peripheral edge portion of a base portion thereof is interposed between ...	06/13/1978
4076333	Track joint with combined thrust member and seal members A track joint with combined thrust member and seal members and including a track pin and a bushing and two links defining a space therebetween. The thrust member and the seal members are disposed in the space for countering thrust between the bushing and ...	02/28/1978
4066302	Track joint with combined thrust and seal members A track joint with combined thrust and seal members and including a pin with a bushing thereon and with the track links respectively mounted on the bushing and pin. A thrust member is interposed between the one link and the bushing, and an elastic seal is...	01/03/1978
4058322	Bearing seal for endless tracks A seal for endless tracks formed of alternating first and second link sides articulated to one another at joints; each joint including a bushing affixed to the first link side and a pin surrounded by the bushing and affixed to the second link side and an ...	11/15/1977
4029366	Sealed track chain joint A sealed track chain joint with a track pin and a bushing extending thereover, and a link on the pin and a link on the bushing. An elastomeric seal extends between the pin and the bushing to seal against entry of dirt and exit of lubricant between the pin...	06/14/1977
3975028	Apparatus for sealing a track shoe Sealing apparatus which includes an elastic seal having end portions and at least one intermediate portion, all of such portions being interconnected yet axially spaced from each other whereby the seal is compressible. A projection is provided upon one en...	08/17/1976

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Class 305/104 - And at connector pin