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Class Information
Number: 264/39
Name: Plastic and nonmetallic article shaping or treating: processes > With step of cleaning, polishing, or preconditioning apparatus for use
Description: Processes which include a step of cleaning or polishing or otherwise mechanically or physically treating the apparatus or a working surface thereof in order to restore, maintain or bring said apparatus to a desired or necessary operating condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5188788 |
Process for producing cellulose triacetate films |
Feb. 23, 1993 |
| 5174932 |
Process for gas assisted injection molding |
Dec. 29, 1992 |
| 5160671 |
Method for regenerating mandrel made of thermally expandable fluororesin |
Nov. 3, 1992 |
| 5159970 |
Method of making shell moulds for casting |
Nov. 3, 1992 |
| 5160689 |
Apparatus and method for manufacturing cosmetic products |
Nov. 3, 1992 |
| 5147197 |
Sealing plate for a spinnerette assembly |
Sep. 15, 1992 |
| 5139408 |
Apparatus for cleaning braebender-type mixing apparatus |
Aug. 18, 1992 |
| 5137664 |
Process for the treatment of dental impressions |
Aug. 11, 1992 |
| 5116553 |
Method of surfacing screen organization |
May. 26, 1992 |
| 5108667 |
Process for the treatment of polymer cosmetic molds |
Apr. 28, 1992 |
| 5108668 |
Process for manufacturing device for casting lead grids for electric battery plates |
Apr. 28, 1992 |
| 5108188 |
Method for producing rubber mixtures |
Apr. 28, 1992 |
| 5082437 |
Reaction injection machine utilizing a plurality of reactant liquids |
Jan. 21, 1992 |
| 5076777 |
Apparatus for coextruding plastics materials |
Dec. 31, 1991 |
| 5074775 |
Spatula cleaning system for molds in a fixed surface molding apparatus |
Dec. 24, 1991 |
| 5073329 |
Method for compressions moulding of elastomers |
Dec. 17, 1991 |
| 5064583 |
Method for applying mold release coating to separator plates for molding printed circuit boards |
Nov. 12, 1991 |
| 5064584 |
Rotary molding machine |
Nov. 12, 1991 |
| 5053172 |
Method of cleaning semiconductor molding apparatus |
Oct. 1, 1991 |
| 5053173 |
Process and apparatus for manufacturing plastic mouldings |
Oct. 1, 1991 |
| 5034168 |
Method of controlling the restarting of injection molding machines |
Jul. 23, 1991 |
| 5017120 |
Tie-rod assembly for an injection molding press |
May. 21, 1991 |
| 5015425 |
Manufacturing apparatus |
May. 14, 1991 |
| 5000895 |
Method for preventing plastic from hardening in a dispenser tip |
Mar. 19, 1991 |
| 4983115 |
Molding apparatus for sealing semiconductor devices including a mold cleaning device |
Jan. 8, 1991 |
| 4976900 |
Method and apparatus for gushing air stream into metal molds in injection molding machine |
Dec. 11, 1990 |
| 4976788 |
Method of cleaning melt-processing equipment with a thermoplastic polyolefin and a bifunctional siloxane |
Dec. 11, 1990 |
| 4975227 |
Method for removing clogging of a nozzle in a motor-driven injection molding machine |
Dec. 4, 1990 |
| 4956132 |
Method for applying mold-releasing agent onto mold surfaces using a mold-releasing sheet |
Sep. 11, 1990 |
| 4956133 |
Continuous molding apparatus and method |
Sep. 11, 1990 |
| 4935175 |
Mold cleaning composition, sheet for cleaning mold, and method for cleaning mold using said cleaning sheet |
Jun. 19, 1990 |
| 4917839 |
Method for continuously producing molded members |
Apr. 17, 1990 |
| 4917838 |
Method of manufacturing green bricks with smooth side surfaces |
Apr. 17, 1990 |
| 4904309 |
Chemical cleaning method of the interior of polymerization reactor |
Feb. 27, 1990 |
| 4898327 |
Injection system for foamable compositions |
Feb. 6, 1990 |
| 4895507 |
Die assembly exchanging apparatus for extruder |
Jan. 23, 1990 |
| 4895506 |
Extrusion press |
Jan. 23, 1990 |
| 4880581 |
Means and method for aseptic particle-free production of articles |
Nov. 14, 1989 |
| 4876042 |
Molding processing using a reproducible molding die |
Oct. 24, 1989 |
| 4876043 |
Hopper transport for injection molding |
Oct. 24, 1989 |
| 4873032 |
Pour hole closer, straight in type, for use with injection foam molding system |
Oct. 10, 1989 |
| 4871492 |
Method for aligning blow mandrel |
Oct. 3, 1989 |
| 4863661 |
Resin molding process employing a mickel-based alloy liner |
Sep. 5, 1989 |
| 4863650 |
Process for molding and vulcanizing tires and other rubber articles |
Sep. 5, 1989 |
| 4861528 |
Method of making a hair-streaking cap |
Aug. 29, 1989 |
| 4832882 |
Method of removing impurities from a material |
May. 23, 1989 |
| 4830793 |
Method of injecting polyurethane foam into a hollow envelope, more particularly a vehicle head-rest |
May. 16, 1989 |
| 4818450 |
Apparatus and method for forming pellets |
Apr. 4, 1989 |
| 4808355 |
Method of changing the resin in an injection molding machine using a nozzle touch plate |
Feb. 28, 1989 |
| 4790966 |
Method for forming a pallet with deep drawn legs |
Dec. 13, 1988 |
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