Patents by Inventor Franz-Werner Alfter

Franz-Werner Alfter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4417932
    Abstract: A process for the continuous production of a sheeting of stratified material from synthetic resin foam particles especially particles of crosslinking polyethylene includes the steps of scattering foam particles onto a conveying means, preheating the foam particles during conveyance, superficially to a temperature in the range between 100.degree. and 160.degree. C.; thereafter feeding the thus-preheated foam particles to means defining a free falling zone; causing the preheated particle to free-fall within said zone; further heating the particles during falling, to a temperature of at least 200.degree. C., and, at the end of the free fall, piling up the particles on a support surface; compacting the piled-up particles into a sheet-like layer on said surface; and sizing the preliminarily compacted sheet with simultaneous cooling.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: November 29, 1983
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Hans-Ulrich Breitscheidel, Paul Spielau, Franz-Werner Alfter
  • Patent number: 4377614
    Abstract: A floor mat is formed essentially of cross-linked polyolefin foam for the lining of the floor interiors of motor vehicles. This mat includes a cross-linked polyolefin foam floor mat base having at least one preselected surface area covered with a permanently applied floor-protecting surface layer. The layer is made up of cross-linked polyolefin foam layer and a thermoplastic polymeric film which is heatable in a high-frequency electrical field in dielectric fashion and which exhibits wear resistance superior to the cross-linked polyolefin foam or base. The cross-linked polyolefin foam base is preshaped to conform to the contours of the floor interior of a motor vehicle.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: March 22, 1983
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz-Werner Alfter, Hans-Ulrich Breitscheidel
  • Patent number: 4288490
    Abstract: An engine hood lining for automotive vehicles has a continuous sheet-like body that is formed of a closed-cell polyethylene foam material and is shaped to fit the inside contour of a hood of the vehicle.
    Type: Grant
    Filed: March 16, 1976
    Date of Patent: September 8, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz-Werner Alfter, Hans-Ulrich Breitscheidel
  • Patent number: 4073535
    Abstract: An adhesive interior or dome lining is provided for the interior of a vehicle roof with the central portion of the dome lining being adhesively secured to the roof while free edges of the dome lining are inserted into the gap formed between the roof and the interior roof strut. A profiled member of a soft foam material is provided adjacent the gap with the free end of the dome lining passing over the profiled member to be clampingly engaged into the gap by the compressive forces of the foam material. A method for installing this arrangement is further provided.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: February 14, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz-Werner Alfter, Hans-Ulrich Breitscheidel, Cosmas Lorry
  • Patent number: 4043589
    Abstract: A self-supporting interior lining or vehicle dome having in the edge zones thereof at least one clamping or mounting bead adapted to cooperate with at least one undercut provided in the vehicle roof structure to mount the same thereon. At least one of the clamping bead and vehicle dome or a portion thereof is manufactured of an elastic material to facilitate installation within the vehicle.
    Type: Grant
    Filed: April 8, 1974
    Date of Patent: August 23, 1977
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz-Werner Alfter, Hans-Ulrich Breitscheidel, Heinz-Gerd Reinkemeyer
  • Patent number: 4020207
    Abstract: An interior covering for automotive vehicles, containers, or the like, which is insulating and optionally constructed to be self-supporting, comprising at least two sheets of polyethylene foam of identical or different density permanently bonded together with a reinforcing polymer-containing layer to form a multiple-layered structure.
    Type: Grant
    Filed: December 7, 1973
    Date of Patent: April 26, 1977
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz-Werner Alfter, Joachim Becke, Hans-Ulrich Breitscheidel, Herbert Laubenberger
  • Patent number: 3962016
    Abstract: A process for joining abutting thermoplastic synthetic resin foam structures by a strip which covers a junction zone formed between the foam structures including the steps of pressing a metal strip heated to above the softening point and or the melting temperature of the synthetic resin foam under slight pressure onto the junction zone and then allowing the metal strip to cool. In this manner, a bond is formed between the foam structures and the metal strip.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: June 8, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz Werner Alfter, Hans-Ulrich Breitscheidel
  • Patent number: 3954537
    Abstract: A process for the production of multiple-layer sheets, panels, shaped articles, or the like laminates having at least one layer of polyurethane foam material wherein at least one side of the polyurethane foam layer is bonded under the action of heat to a layer of cross-linked polyethylene foam material.
    Type: Grant
    Filed: December 31, 1974
    Date of Patent: May 4, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Franz-Werner Alfter, Hans-Ulrich Breitscheidel, Heinz-Gerd Reinkemeyer, Manfred Simm
  • Patent number: 3937777
    Abstract: A process and apparatus for continuous production of molded sheets of a foamed thermoplastic synthetic resin, wherein a synthetic resin is fed into a screw extruder and a low boiling point liquid expanding agent is introduced under high pressure into the extruder and admixed with the resin in the extruder and thereafter the resulting admixture is extruded in the form of a plurality of foam filaments to insure proper distribution of the admixture to the nozzles of the extruder. A gear pump is provided for each nozzle. Also, to avoid collapsing of the foam means are provided for tempering the foam filaments by the application of heat.
    Type: Grant
    Filed: November 27, 1972
    Date of Patent: February 10, 1976
    Assignee: Dynamit Nobel AG
    Inventors: Michael Wienand, Jurgen Hasberg, Franz-Werner Alfter