Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1978-11-27
1981-10-27
Hoag, W. E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264348, B29C 1703, B29D 2310, B29H 501, B29H 516
Patent
active
042973147
ABSTRACT:
In order to impart a permanent out-of-plane configuration to a flexible diaphragm, for example a diaphragm used as the valve closing member in a multiple fuel metering valve, the invention provides that the diaphragm material, which may preferably be a rubberized textile web, is held by friction between two cooperating plates while a punch and die set causes deformation of parts of the diaphragm. In order to provide permanence to the deformation, the punch and/or die are heated during the deformation process while the remaining parts of the diaphragm are unheated and may be cooled. In a particular embodiment, the punch and die set imparts a plurality of dish-shaped depressions to the diaphragm; these serve to hold valve closing members for a multiple fuel distribution valve. The permanent depressions serve to hold the valve closing plates without mechanical attachment and/or perforation of the diaphragm and do not add undesirable rigidity to the diaphragm.
REFERENCES:
patent: 2363508 (1944-11-01), Doster et al.
patent: 2962757 (1960-12-01), Slemmons et al.
patent: 3040383 (1962-06-01), Nassimbene
patent: 3142089 (1964-07-01), Wilkalis et al.
patent: 3244779 (1966-04-01), Levey et al.
patent: 3294883 (1966-12-01), Polka
patent: 3488413 (1970-01-01), Watts
patent: 3614811 (1971-10-01), Johnson
patent: 3739052 (1973-06-01), Ayres et al.
patent: 3814784 (1974-06-01), Wolf
patent: 3896207 (1975-07-01), Cospen et al.
patent: 3929952 (1975-12-01), Edwards
patent: 3933967 (1976-01-01), Taylor
Anon. Webster's Seventh New Collegiate Dictionary, Merriam, Springfield, Mass., (1966), p. 751 relied on.
Gove, Webster's Third New Int'l. Dictionary, Merriam, Springfield, Mass., (1963), p. 730 relied on.
Wright et al., Solid Polyurethane Elastomers, MacLaren, London, (1969), pp. 7, 8, 260-264 relied on.
Greigg Edwin E.
Hoag W. E.
Robert & Bosch GmbH
LandOfFree
Method for permanent deformation of an elastic member 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 for permanent deformation of an elastic member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for permanent deformation of an elastic member will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-279201