Title: Phonograph record pressing die assembly

Abstract: An assembly attachable to upper and lower bases of a phonograph record pressing die includes: A. upper and lower die frames, the upper die frame attachable to the upper base, and the lower die frame attachable to the lower die base, and B. upper and lower die faces, the upper die face attached to the upper frame, and the lower die face attached to the lower frame, the upper die face directly overlying the lower die face to press a phonograph record therebetween, C. there being a first set of fluid passing grooves formed in at least one of the upper frame and upper face and exposed to the other thereof, and another set of heat transfer fluid grooves formed in at least one of the lower frame and lower face and exposed to the other thereof. This is a continuation of application Ser. No. 469,387, filed May 13, 1974, now abandoned.

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Other info:

Inventors: Hunyar, Csaba K. (Sunland, CA, US)
Green, Jesse (Torrance, CA, US)

Application Number: 576292
Filing Date: 1975-05-12
Publication_date: 1976-03-02
Assignee: United Artists Music and Records Group, Inc. (Los Angeles, CA)
Primary Class(es): 425/407 425/408, 425/810
Other Classes:
US Patent Ref:

1307812	Jun, 1919	Errickson	425/810.
1576642	Mar, 1926	Bishop	425/408.
1582704	Apr, 1926	Sylvester et al.	425/810.
2092880	Sep, 1937	Hunter et al.	425/810.
3752620	Aug, 1973	Renoux	425/408.
3830459	Aug, 1974	Strausfeld	425/810.
R15608	May, 1923	Burroughs	425/810.

Other Refs:
Primary Examiner: Flint, Jr., J. Howard
Assistant Examiner:
Attorney: Haefliger; William W.