Spring device

Details Spring device Spring device

1993-10-26

1995-10-03

Oberleitner, Robert J.

Spring devices

Fluid

Expansible-contractible chamber device

267130, 7245315, F16F 500

Patent

active

054545498

ABSTRACT:
Disclosed is a spring device which, during use in co-action with a deep-drawing device, is capable of causing the blank-holder pressure to decrease in proportion to the remaining material. The spring device holds substantially constant the blank-holder force per unit of surface area on the non-deformed material and is considered a "degressive" spring wherein the reaction force exerted by the spring decreases as the displacement between the ends of the spring increases.

REFERENCES:
patent: 1967245 (1934-07-01), Hothersall
patent: 2143429 (1939-01-01), Auble
patent: 3267715 (1966-08-01), Williamson
patent: 3420089 (1969-01-01), Myers
patent: 4121449 (1978-10-01), Celi
patent: 4745792 (1988-05-01), Story et al.
patent: 4873859 (1989-10-01), Bulso, Jr. et al.

Affiliated with

Also associated with

Rating

Spring device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1073267