Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1981-03-27
1983-02-08
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
264132, 264161, 264213, 264221, 264222, 2642791, B29C 500, B29C 1710, B29D 300
Patent
active
043729045
ABSTRACT:
Method for making a coded, resilient ear plug including forming an impression with wax and release agent, investing the impression, agitating to remove air, hardening the investment and after removal of the impression material casting a hardenable material in the investment cavity.
REFERENCES:
patent: 1755775 (1930-04-01), Dunn
patent: 2473723 (1949-06-01), Nelson
patent: 2475802 (1949-07-01), Osserman
patent: 2496170 (1950-01-01), Mann
patent: 2528219 (1950-10-01), Feagin
patent: 3097059 (1963-07-01), Hoffman
patent: 3328502 (1967-06-01), Robson
patent: 3440314 (1969-04-01), Gordon
patent: 3638709 (1972-02-01), Brown et al.
Schwartz, "Acrylic Plastics in Dentistry", Dental Items of Interest Pub. Co., N.Y., (1950), pp. 154-155.
LandOfFree
Method for making an ear plug does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making an ear plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making an ear plug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-49268