Metal deforming – By relatively movable offset tool-faces – Multi-point tool-couple
Reexamination Certificate
2005-01-11
2005-01-11
Crane, Daniel C. (Department: 3725)
Metal deforming
By relatively movable offset tool-faces
Multi-point tool-couple
C072S384000, C072S379600
Reexamination Certificate
active
06840080
ABSTRACT:
A press-forming apparatus comprises a pair of press-forming units detachably secured to movable and stationary units facing each other, respectively. A metallic material is subjected to a press-forming through the press-forming units and then discharged therefrom as a heat transfer member for a heat exchanger. Each of the press-forming units comprises (i) a main forming section for forming on the material a heat transfer face with a corrugated portion, (ii) a pair of first subsidiary forming sections disposed on upstream and downstream sides of the main forming section so as to be adjacent thereto in the feeding direction of the material and (iii) a forming section-support base member detachably supporting the main forming section and the first subsidiary forming sections. The main forming section has a press-forming face with main corrugation patterned portions that are symmetric with respect to a central line perpendicular to the feeding direction of the material, and boundary patterned portions, on which recesses and projections align in a direction perpendicular to the feeding direction of the material. The first subsidiary forming sections of one of the pair of press-forming units is adjustable to shift press-forming faces thereof along a pressing direction, so as to provide switchably a contact mode in which the press-forming faces come into contact with the material together with the main forming section to apply a press-forming operation to the material and a non-contact mode in which the press-forming operation is not applied thereto.
REFERENCES:
patent: 3307387 (1967-03-01), Lacey, Jr. et al.
patent: 3845654 (1974-11-01), Fuller et al.
patent: 4434643 (1984-03-01), Almqvist et al.
patent: 4635462 (1987-01-01), Bald
patent: 4989440 (1991-02-01), Sjogren
patent: 5937519 (1999-08-01), Strand
patent: 63183739 (1988-07-01), None
patent: 05200450 (1993-08-01), None
patent: 2001321835 (2001-11-01), None
European Search Report dated May 9, 2003.
Crane Daniel C.
Kananen Ronald P.
Rader & Fishman & Grauer, PLLC
Xenesys Inc.
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