Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1988-08-19
1990-03-27
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
156245, 1563073, 1563075, 156329, 264135, 264259, 264265, 264279, 2643286, 26432816, 26433111, B29C 4514, B32B 2708
Patent
active
049118714
ABSTRACT:
A comfort-enhancing improvement upon a known dental film packet having sensitized film and protective opaque sheets enclosed by a light-tight envelope that includes an opposed pair of generally parallel walls covering the sheets, those walls being joined together along facing marginal areas thereof surrounding the sheets so as to define a main body portion and a perimetric edge portion of the envelope. The improvement includes a pliant bead of substantially non-porous, non-toxic, polymeric elastomeric material, preferably a silicone resin, that is molded in situ around at least part of the perimetric edge portion to encapsulate that part of the edge portion with such material and thereby provide the encapsulated part with a softer, smoother, and more rounded peripheral surface. In the molding process illustrated, the polymeric elastomeric material is injected under pressure into a mold peripheral channel of circular cross section surrounding the envelope edge portion, and the mold is then heated for optimal, low-temperature, controlled curing of the bead formed therein.
REFERENCES:
patent: D290652 (1987-06-01), Simpson
patent: D291917 (1987-09-01), Simpson
patent: 1537925 (1925-05-01), Bolin
patent: 1631497 (1927-06-01), Marler
patent: 1994579 (1935-03-01), Hodgson
patent: 2084092 (1937-06-01), Kenney
patent: 3443093 (1969-05-01), Lindenmuth et al.
patent: 4308317 (1981-12-01), Olson et al.
patent: 4439386 (1984-03-01), Antczak
patent: 4626185 (1986-12-01), Monnet
patent: 4626216 (1986-12-01), Strong-Grainger
patent: 4719065 (1988-01-01), Gibbon
Dixon William C.
Eastman Kodak Company
Tentoni Leo B.
Thurlow Jeffery
LandOfFree
Method for effecting an intraoral dental radiographic film packe 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 effecting an intraoral dental radiographic film packe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for effecting an intraoral dental radiographic film packe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1649163