Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – By fluid pressure actuated flexible diaphragm
Patent
1995-05-26
1996-08-13
Bushey, C. Scott
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
By fluid pressure actuated flexible diaphragm
264314, 425DIG19, 425DIG47, B29C 5900
Patent
active
055450261
ABSTRACT:
A platen for applying pressure during hydroforming of polycarbonate and similar sheet material includes a flexible diaphragm for applying pressure in response to hydraulic fluid under pressure within a platen cavity and a diaphragm circumscribing sealing member for inhibiting seepage of hydraulic fluid and for preventing outward migration of the material of the diaphragm during a hydroforming operation. The junction between the sealing member and the diaphragm is conforming and void free to prevent hydraulic fluid flow therebetween. To help contain the hydraulic fluid within the platen cavity, a circumscribing inwardly extending foot of the diaphragm provides a mechanical and dynamic seal against an adjacent surface of the platen cavity.
REFERENCES:
patent: 1854498 (1932-04-01), Anderson
patent: 3172153 (1965-03-01), Loomis et al.
patent: 3535740 (1970-10-01), Frawde
patent: 3545241 (1970-12-01), Grankowski et al.
patent: 3956452 (1976-05-01), Saito
patent: 4080139 (1978-03-01), Hellgren
patent: 4105388 (1978-08-01), Hellgren
patent: 4128375 (1978-12-01), Schubart
patent: 4133626 (1979-10-01), Schubart
patent: 4588368 (1986-05-01), Buhler et al.
patent: 4886442 (1989-12-01), McCowin et al.
Fritz Alton L.
Fritz Michael L.
LandOfFree
Hydroforming platen and seal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydroforming platen and seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroforming platen and seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1044046