The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 1982
Filed:
Oct. 10, 1980
Applicant:
Inventor:
James W Cutter, Hollister, CA (US);
Assignee:
DFP Enterprises, Oakland, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03D / ;
U.S. Cl.
CPC ...
354322 ; 134 / ;
Abstract
An apparatus for the automatic processing of dental x-ray film having a horizontally disposed spiralling film processing chamber (14) such that fluid retaining tanks (16), (18), (20) and (22) are created by the lower portion of each spiralling revolution, the sidewalls (40) and (42) of the spiralling chamber having pairs of opposing arcuate film travelling grooves (44) and (45), a central shaft (32) rotates along the principle axis of the spiralling chamber (14) and film impellers (50), (52), (54), (56) and (60) are rotated by the shaft (32) for impelling film (43) along the grooves (44) and (45) through said spiralling chamber (14).