Valve sleeve shaping method

Details Valve sleeve shaping method Valve sleeve shaping method

1983-05-10

1985-11-26

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

72393, 291567R, 291571R, B21D 5300, B21D 5310

Patent

active

045548170

ABSTRACT:
An apparatus is provided to shape the edges of flow control grooves in a valve sleeve. The apparatus includes a plurality of groove edge shaping tools which are pivotally supported in a circular array. A valve sleeve is telescoped over working end portions of the tools. A locator member engages an opening in the valve sleeve to hold the valve sleeve in radial alignment with the tools. A punch then forces a driver axially downwardly against the working end portions of the tools to pivot them radially outwardly against the edges of the grooves in the valve sleeve to shape the edges of the grooves. As the punch is subsequently withdrawn, a return spring moves a retainer upwardly against the tail end portions of the tools to pivot the tools inwardly out of engagement with the valve sleeve and to retain the tools in position out of engagement with the valve sleeve.

REFERENCES:
patent: 1420875 (1922-06-01), Smith
patent: 1625131 (1927-04-01), Miller
patent: 1648189 (1927-11-01), Ottinger
patent: 2400961 (1946-05-01), Thayer
patent: 2740456 (1956-04-01), Laval, Jr.
patent: 2963069 (1960-12-01), Pasternak
patent: 3067801 (1962-12-01), Shortor
patent: 3263474 (1966-11-01), Pentland
patent: 3371514 (1968-03-01), Venables, III
patent: 3476744 (1969-07-01), Leece
patent: 3591136 (1969-02-01), Bishop
patent: 3680422 (1972-08-01), Salvador
patent: 3800386 (1974-04-01), Bishop
patent: 4100785 (1978-07-01), Bishop
patent: 4103407 (1978-08-01), Elizalde et al.
patent: 4276812 (1981-07-01), Dymond
patent: 4369558 (1983-01-01), Iwata et al.
patent: 4430873 (1984-02-01), Oram
patent: 4442579 (1984-04-01), Millard

Affiliated with

Also associated with

Rating

Valve sleeve shaping method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve sleeve shaping method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve sleeve shaping method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-264643