Method of making valve sleeves

Details Method of making valve sleeves Method of making valve sleeves

1983-09-19

1985-10-01

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

72370, B21D 2200

Patent

active

045438137

ABSTRACT:
This invention relates to methods of making valve sleeves. The valve sleeve 35 is manufactured from a tube 10 which is initially placed on a mandrel 20, which is formed with axially-extending projections 23 spaced about it circumferentially. The tube is then swaged on to the mandrel to form grooves 28, which have the shape and the dimensions of 23. The mandrel 20 is then replaced by a cylindrical mandrel 30 and the open ends of grooves 28 are then closed by a further swaging operation. This method enables valve sleeves, having stopped axially-extending grooves in their inner surface with accurately located lips, to be formed from a single piece of metal.

REFERENCES:
patent: 2367942 (1945-01-01), Hartman
patent: 3503246 (1970-03-01), Shiokawa
patent: 3566651 (1971-03-01), Tlaker
patent: 3719979 (1973-03-01), Irwin
patent: 4294100 (1981-10-01), Olschewski

Affiliated with

Also associated with

Rating

Method of making valve sleeves does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making valve sleeves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making valve sleeves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1436246