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Class Information
Number: 425/460
Name: Plastic article or earthenware shaping or treating: apparatus > Shaping member for traversing the interior surface of hollow work
Description: Apparatus comprising means especially designed to contact the walls of a cavity in a work piece and impart a shaping or smoothing action thereto.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7517212 |
Portable pipe repair system with electrically heated positioning member |
Apr. 14, 2009 |
| 7125239 |
Concrete pipe manufacturing machinery and methods |
Oct. 24, 2006 |
| 6984118 |
Method and apparatus for the production of tubes from concrete mix |
Jan. 10, 2006 |
| 6787092 |
Pipe extrusion die for multi-layer pipe |
Sep. 7, 2004 |
| 5558882 |
Pipe paver finishing machine |
Sep. 24, 1996 |
| 5443377 |
Increased efficiency apparatus for lining a pipe with a cement mortar |
Aug. 22, 1995 |
| 5399301 |
Method and apparatus for expanding replacement pipe |
Mar. 21, 1995 |
| 5362224 |
Chimney lining former and compactor |
Nov. 8, 1994 |
| 5273414 |
Method and apparatus for installing a pipe liner |
Dec. 28, 1993 |
| 5059067 |
Method for forming a curved interior profile to a cementitious material |
Oct. 22, 1991 |
| 5049058 |
Rollout apparatus |
Sep. 17, 1991 |
| 5044405 |
Method and apparatus for repair-lining of short sections of pipe |
Sep. 3, 1991 |
| 4950356 |
Method of and apparatus for lining pipes |
Aug. 21, 1990 |
| 4838980 |
Method and apparatus for introducing and joining diaphragms in slotted walls |
Jun. 13, 1989 |
| 4780072 |
Apparatus for internally coating welded pipe at the weldment |
Oct. 25, 1988 |
| 4741795 |
Method of and apparatus for lining pipes |
May. 3, 1988 |
| 4728280 |
Chimney lining slip form |
Mar. 1, 1988 |
| 4690631 |
Packerhead with elastic rollers |
Sep. 1, 1987 |
| 4611980 |
Fiber reinforced thermosetting resin cylindrical shape product manufacturing apparatus |
Sep. 16, 1986 |
| 4601768 |
Method and apparatus for treating plastic welds to relieve stresses therein |
Jul. 22, 1986 |
| 4590018 |
Method of improving spin cast lenses |
May. 20, 1986 |
| 4555229 |
Automatic machine for the internal fettling of sanitary appliances |
Nov. 26, 1985 |
| 4553920 |
Automatic machine for the fettling of the syphon of sanitary appliances |
Nov. 19, 1985 |
| 4506624 |
Trowel for smoothing mortar on the interior of a pipe |
Mar. 26, 1985 |
| 4358264 |
Centrifugal molding apparatus for manufacturing composite material pipes |
Nov. 9, 1982 |
| 4305704 |
Apparatus for forming and threading tubing |
Dec. 15, 1981 |
| 4256445 |
Trowel means for lining and smoothing the interior of pipes with a protective coating |
Mar. 17, 1981 |
| 4253813 |
Apparatus for applying a flowable coating material to the interior of a stack |
Mar. 3, 1981 |
| 4252763 |
Method and apparatus for cement lining of pipes |
Feb. 24, 1981 |
| 4239580 |
Impregnated fabric applicator with vibrating applicator rolls |
Dec. 16, 1980 |
| 4184830 |
Trowel for pipe lining material |
Jan. 22, 1980 |
| 4181484 |
Device for forming underground pipelines |
Jan. 1, 1980 |
| 4181696 |
Slip-cased core-forming mandrel |
Jan. 1, 1980 |
| 4177031 |
Apparatus for casting tubular, polymeric membranes for reverse osmosis and ultrafiltration |
Dec. 4, 1979 |
| 4115172 |
Apparatus and method for applying puncture sealant material to a tire |
Sep. 19, 1978 |
| 4067680 |
Trowel for pipe lining material |
Jan. 10, 1978 |
| 4020790 |
Apparatus for forming a coating on a tubular textile jacket |
May. 3, 1977 |
| 3990830 |
Multi-stage trowel for smoothing pipe lining material |
Nov. 9, 1976 |
| 3990829 |
Oriented crystallization of polymers |
Nov. 9, 1976 |
| 3989440 |
Device for shaping a bell end to a tube |
Nov. 2, 1976 |
| 3966389 |
Apparatus for troweling pipe lining material |
Jun. 29, 1976 |
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