Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1981-11-27
1983-08-30
Husar, Francis S.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29602A, 267158, 267161, B21F 3500
Patent
active
044008619
ABSTRACT:
In accordance with the method of this invention, at least one sheet containing the spider springs is positioned in a novel preform fixture having internal parts constructed to simultaneously permanently preform each spring after the fixture is heat treated. The novel fixture for carrying out the preforming process of the invention on an etched sheet comprises a base plate having a number of columns extending vertically upwardly from the flat surface. The number of columns is equal to the number of springs on the sheet, and their disposition on the base corresponds to the disposition of the inner rings on the sheet. The outside diameter of a column is substantially equal to the outside diameter of an inner ring. An intermediate plate is provided defining a number of transverse bores equal to the number of columns. The diameter of each bore is substantially equal to the inside diameter of each outer ring so that the center of each column is also the center of each bore when the bottom surface of the intermediate plate is disposed on top of the base plate. A compression plate is disposed over the intermediate plate.
REFERENCES:
patent: 2604316 (1952-07-01), O'Brien et al.
patent: 3239804 (1966-03-01), Elskamp et al.
patent: 4323994 (1982-04-01), Coogler
Breston Michael P.
Husar Francis S.
Jones David B.
Oyo Instruments, Inc.
LandOfFree
Fabrication of seismic springs from sheets does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fabrication of seismic springs from sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fabrication of seismic springs from sheets will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-900495