Metal deforming – By application of fluent medium – or energy field – Using fixed die
Reexamination Certificate
2006-10-31
2006-10-31
Jones, David B. (Department: 3725)
Metal deforming
By application of fluent medium, or energy field
Using fixed die
C072S054000, C072S060000, C425S389000
Reexamination Certificate
active
07127925
ABSTRACT:
A press of pressure cell type, which comprises a press chamber in which a diaphragm device is arranged. The diaphragm device comprises a diaphragm which together with a press plate forms a pressure cell and is adapted to exert a forming pressure on a workpiece in the press chamber. The edge area of the diaphragm is placed in an annular diaphragm support. The press of pressure cell type also comprises actuating means which are adapted to actively exert a force on the diaphragm support in the direction of the press plate, the diaphragm support pressing the edge area of the diaphragm against the press plate so that an initial seal is provided between the diaphragm at its edge area and the press plate, which seal is built up when supplying pressure medium to the pressure cell by expansion of the diaphragm. The invention also relates to a diaphragm device, a method for applying a pressing power and a method for exchanging a diaphragm in a press of pressure cell type.
REFERENCES:
patent: 2771850 (1956-11-01), Wheelon
patent: 3033143 (1962-05-01), Grankowski
patent: 3875778 (1975-04-01), Hellgren
patent: 4080139 (1978-03-01), Hellgren
patent: 4658618 (1987-04-01), Hellgren
patent: 4676086 (1987-06-01), Hellgren
patent: 4693103 (1987-09-01), Hellgren
patent: 232717 (1944-09-01), None
patent: 368 173 (1974-06-01), None
patent: 404 140 (1978-09-01), None
patent: 446 611 (1986-09-01), None
Avure Technologies AB
Harness & Dickey & Pierce P.L.C.
Jones David B.
LandOfFree
Diaphragm support and a method for initial sealing in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diaphragm support and a method for initial sealing in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaphragm support and a method for initial sealing in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3669147