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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Rubens; Louis C.
Address:
Midland, MI
No. of patents:
14
Patents:












Patent Number Title Of Patent Date Issued
5547440 Lung exerciser August 20, 1996
An exercise device for improving the performance of age or disease impaired human respiratory systems. The device depends on the use of a respiratory exerciser which contains a novel piston which does not itself contact internal diameter of the tube in which it is situated except for the
5439430 Respiratory exerciser August 8, 1995
This invention deals with a new and novel dynamic exercising device intended to improve the performance of age or disease impaired human respiratory systems. The device depends on the use of a respiratory exerciser which contains a novel piston which does not itself contact the inter
4804507 Process and apparatus for producing gas pressurized foam particles February 14, 1989
Closed-cell foam particles are pressurized to produce particles useful in a process using secondary foaming to achieve a lower density foam. Closed-cell foam particles are initially compressed in a first stage compression tank and then transferred to a main gas pressurization tank. T
4713927 Process and apparatus for packaging December 22, 1987
Pneumatic synthetic resinous foams are used as dunnage. Foams are added to a package under fluid pressure; the package closed, the pressure reduced to atmospheric, and particulate pneumatic foam expands to fill container.
4693856 Method and apparatus for the preparation of foamed thermoplastic articles September 15, 1987
Expandible synthetic resinous particles are molded by injecting heated air generally centrally into the mold cavity by means of a probe, withdrawing the probe and heating the surface of the mold. Low densities and rapid cycle times are obtained.
4626660 Oven having cavities of varying temperature December 2, 1986
An oven is provided which has varying temperature zones. The oven is prepared from a pair of opposed elongate metal members, each heated at adjacent ends and a cavity defining a thermally insulating member between the metal bar.
4604426 Better foamable styrene and other olefin polymer compositions August 5, 1986
Excellently properties, thermoplastic compositions well adapted for conversion by conventional melt-processing extrusion and other ordinary fabrication techniques into very good quality, lightly cross-linked, thermocollapse-resistant, closed-cell plastic foam(s) and the like expanded
4532264 Better foamable styrene and other olefin polymer compositions July 30, 1985
Excellently properties, thermoplastic compositions well adapted for conversion by conventional melt-processing extrusion and other ordinary fabrication techniques into very good quality, lightly cross-linked, thermocollapse-resistant, closed-cell plastic foam(s) and the like expanded
4485193 Expandable synthetic resinous thermoplastic particles, method for the preparation thereof and th November 27, 1984
Resilient foam particles and moldings are obtained employing a lightly crosslinked polymer such as a styrene polymer with volatile fluid foaming agent that has low permeability through the polymer. Multiple expansion will permit low density particles for molding.
4448933 Better foamable styrene and other olefin polymer compositions containing lightly crosslinked hyd May 15, 1984
Excellently properties, thermoplastic compositions well adapted for conversion by conventional melt-processing extrusion and other ordinary fabrication techniques into very good quality, lightly cross-linked, thermocollapse-resistant, closed-cell plastic foam(s) and the like expanded
4360484 Pressurization and storage of thermoplastic resin foams prior to secondary expansion November 23, 1982
A method for decreasing the density of a substantially closed-cell thermoplastic resin foam material by the secondary expansion thereof. The method comprises increasing the gas pressure within the cells, retaining that elevated cell pressure for prolonged periods and then heating the
4186068 Foamed radiation-crosslinked high density polyethylenes January 29, 1980
Foamed radiation-crosslinked high density polyethylenes having substantially closed cells and uniform structure are made from radiation-crosslinked high density polyethylene compositions comprising thermosensitive foaming agents by heating such compositions while excluding molecular
4108934 Molding expandable thermoplastic resins August 22, 1978
Shaped articles of organic polymer resins having cellular (foamed) structure are made from heat-expandable normally solid thermoplastic resin compositions in permeable molds particularly characterized by flooding the mold cavity and the expandable material therein with molten salt as
3960784 Bodies of expandable synthetic resins and method of preparation June 1, 1976
Expandable synthetic resinous bodies which are capable of being expanded to thermal collapse-resistant foams are prepared by impregnating a thermoplastic synthetic resinous body with a blowing or expanding agent and a cross-linking agent. Such impregnation can readily be carried out










 
 
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