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Class Information
Number: 264/DIG.84
Name: Plastic and nonmetallic article shaping or treating: processes > Conversion of foamed resinous buns into foamed billets having geometrical cross-sections
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5846462 |
Method and apparatus for making high compression structural foam |
Dec. 8, 1998 |
| 5512222 |
Method of using a chilled trough for producing slabs of polyurethane foam |
Apr. 30, 1996 |
| 4605683 |
Polymeric buns and method and apparatus for its manufacture |
Aug. 12, 1986 |
| 4567008 |
Production of foams |
Jan. 28, 1986 |
| 4559003 |
Apparatus for manufacturing webs of polymer foam and a product obtained |
Dec. 17, 1985 |
| 4530807 |
Production of polymeric foam |
Jul. 23, 1985 |
| 4504429 |
Method and apparatus for the continuous upward production of foamed material |
Mar. 12, 1985 |
| 4492664 |
Process for the continuous foaming of plastics |
Jan. 8, 1985 |
| 4489023 |
Method of and an installation for the continuous production of block-foam |
Dec. 18, 1984 |
| 4363610 |
Apparatus for continuously molding cylindrical blocks of foamed polymeric material |
Dec. 14, 1982 |
| 4298557 |
Method and apparatus for the preparation of foamed structures |
Nov. 3, 1981 |
| 4275024 |
Process and apparatus for elimination of densified areas in blocks of pliable polyurethane foam |
Jun. 23, 1981 |
| 4267135 |
Process and apparatus for the continuous molding of polymer foam bunstock having a substantially rectangular cross-section |
May. 12, 1981 |
| 4267134 |
Method and apparatus for smoothing foamed plastic core panelboard surface |
May. 12, 1981 |
| 4260353 |
Apparatus for producing rectangular blocks of foamed resins |
Apr. 7, 1981 |
| 4255105 |
Equipment for the continuous production of foam boards |
Mar. 10, 1981 |
| 4255370 |
Method for manufacturing flat top foam buns |
Mar. 10, 1981 |
| 4252757 |
Method and apparatus for making foamed plastic slab |
Feb. 24, 1981 |
| 4246356 |
Foam manufacture using two catalysts and a vaporizable auxiliary blowing agent |
Jan. 20, 1981 |
| 4222722 |
Device for synchronizing the movement of the cover web and base web during the continuous production of rectangular foam blocks |
Sep. 16, 1980 |
| 4221555 |
Centrifuge deposition device and continuous slab mold for processing polymeric-foam-generating liquid reactants |
Sep. 9, 1980 |
| 4216181 |
Process for applying a layer of a liquid foamable reaction mixture to a continuously moving shaping support |
Aug. 5, 1980 |
| 4207279 |
Process and apparatus for continuous production of polyurethane foam |
Jun. 10, 1980 |
| 4200603 |
Process and equipment for the continuous production of block-shaped foam |
Apr. 29, 1980 |
| 4197269 |
Process for production of large dimension polyester-derived polyurethane foam |
Apr. 8, 1980 |
| 4179094 |
Portable, expandable mold for fabricating substantially isotropic isocyanate based polymer foam buns |
Dec. 18, 1979 |
| 4177028 |
Adjustable apparatus for producing a foam material |
Dec. 4, 1979 |
| 4165955 |
Apparatus for making flat top buns |
Aug. 28, 1979 |
| 4165211 |
Apparatus for applying a layer of a liquid foamable reaction mixture to a continuously moving support |
Aug. 21, 1979 |
| 4160074 |
Polyisocyanate foam having isotropic cells and method and apparatus for preparing same |
Jul. 3, 1979 |
| 4158032 |
Centrifugal process for production of polyurethane foam |
Jun. 12, 1979 |
| 4154562 |
Adjustable width molding apparatus for a flat-top bun |
May. 15, 1979 |
| 4152385 |
Side paper clamping for continuous foam sheet production |
May. 1, 1979 |
| 4150075 |
Process for the continuous production of foam plastic blocks having a rectangular cross-section |
Apr. 17, 1979 |
| 4128611 |
Continuous process and apparatus for producing foamed polymer bunstock having a substantially rectangular cross-section |
Dec. 5, 1978 |
| 4120626 |
Device for the continuous production of foam blocks of rectangular cross-section |
Oct. 17, 1978 |
| 4108585 |
Apparatus for the continuous production of foam plastic blocks of rectangular cross-section |
Aug. 22, 1978 |
| 4104346 |
Process for molding a substantially isotropic isocyanate-based polymer foam bun |
Aug. 1, 1978 |
| 4102621 |
Apparatus for producing polyurethane foam buns of varying heights |
Jul. 25, 1978 |
| 4097210 |
System in an industrial polyexpansion process |
Jun. 27, 1978 |
| 4096220 |
Process for the production of slabs or blocks of plastic foam |
Jun. 20, 1978 |
| 4093109 |
Expansible trough apparatus for use in producing polyurethane foam |
Jun. 6, 1978 |
| 4088723 |
Method of preparing honeycomb insulation structure |
May. 9, 1978 |
| 4088722 |
Method for molding a block of polyurethane foam having a flat upper surface |
May. 9, 1978 |
| 4082824 |
Method of producing continuous planar expanded polyurethane blocks |
Apr. 4, 1978 |
| 4080125 |
Device for the stepless manufacture of expanded cellular material blocks with a circular cross-section |
Mar. 21, 1978 |
| 4074960 |
Manufacture of polymeric foam |
Feb. 21, 1978 |
| 4069285 |
Method and apparatus for making flat top buns |
Jan. 17, 1978 |
| 4056595 |
Process for producing foam slabs of rectangular cross-section |
Nov. 1, 1977 |
| 4051211 |
Apparatus and process |
Sep. 27, 1977 |
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