Track bushing and method and apparatus for producing the same

Details Track bushing and method and apparatus for producing the same Track bushing and method and apparatus for producing the same

2007-10-16

2007-10-16

Kastler, Scott (Department: 1742)

Metallurgical apparatus

Means treating solid metal

By contact with gas

C148S570000

Reexamination Certificate

active

11367424

ABSTRACT:
Quenched layers are formed without irregularities on the inner circumferential surface of a track bushing having a small inside diameter or on the inner circumferential surfaces of two or more track bushings which are subjected to quenching in an overlapped condition. To introduce a cooling medium for cooling the inner circumferential surface of the track bushing, a guide tube having an outside diameter smaller than the inside diameter of the track bushing is disposed on the side of the inner circumferential surface and the cooling medium introduced by the guide tube is diverted by a diverting member having a spherical or similar curved surface, such that the cooling medium is allowed to flow in a direction substantially parallel with an axial direction of the track bushing1within a space defined by the outer circumferential surface of the guide tube and the inner circumferential surface of the track bushing, thereby performing laminar flow cooling.

REFERENCES:
patent: 3227586 (1966-01-01), Spencer
patent: 3567529 (1971-03-01), Burtnett
patent: 3997375 (1976-12-01), Franceschina et al.
patent: 4308037 (1981-12-01), Meissner et al.
patent: 4376528 (1983-03-01), Ohshimatani et al.
patent: 4444604 (1984-04-01), Martin
patent: 4803037 (1989-02-01), McBain et al.
patent: 4820358 (1989-04-01), Chang
patent: 5140118 (1992-08-01), Catanese et al.
patent: 5702667 (1997-12-01), Pond
patent: 6048417 (2000-04-01), Pond
patent: 6193820 (2001-02-01), Girardello et al.
patent: 6270595 (2001-08-01), Takayama et al.
patent: 2001/0050121 (2001-12-01), Takayama et al.
patent: 0 339 152 (1989-11-01), None
patent: 52-034806 (1977-03-01), None
patent: 58-031031 (1983-02-01), None
patent: 58-189327 (1983-11-01), None
patent: 61-37924 (1986-02-01), None
patent: 63-016314 (1988-11-01), None
patent: 01-42528 (1989-02-01), None
patent: 03-120317 (1991-05-01), None
patent: 403166320 (1991-07-01), None
patent: 10-204534 (1998-08-01), None
patent: 11-061264 (1999-03-01), None
patent: 11-131143 (1999-05-01), None
patent: 11-236619 (1999-08-01), None
patent: 2000-073121 (2000-03-01), None
patent: 2001-064729 (2001-03-01), None
patent: 2001-098326 (2001-04-01), None
patent: 2001-240914 (2001-09-01), None

Affiliated with

Also associated with

Rating

Track bushing and method and apparatus for producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Track bushing and method and apparatus for producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Track bushing and method and apparatus for producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3880463