Patents by Inventor Hans-Joachim Bassfeld

Hans-Joachim Bassfeld 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).

  • Publication number: 20040050775
    Abstract: A hollow body through which a fluid passes that comprises at least one of the following materials:
    Type: Application
    Filed: August 5, 2003
    Publication date: March 18, 2004
    Applicant: ENVICON Klartechnik Verwaltungsgesellschaft mbH
    Inventor: Hans Joachim Bassfeld
  • Patent number: 5762835
    Abstract: Aerator with a basic body (10) that can be connected to an air feed (50) pipe and with a diaphragm (20), which can be attached to the basic body (10) and whose edge (20r) can be fixed to the circumferentail surface (10r) of the basic body (10) by a static fastening part (30) for the diaphragm (20), which fastening part is designed such that it surrounds the edge (20r) of the diaphragm (20) in a positive-locking manner and can be fixed itself to the basic body (10) wherein the basic body (10) has, on its side facing a way from the said diaphragm (20), a centrally arranged air inlet area (12, 14), on which the fastening part (30) can be placed with a corresponding connection part (36).
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: June 9, 1998
    Assignee: Envicon Klartechnik Verwaltungs-Gesellschaft mbH
    Inventor: Hans-Joachim Bassfeld
  • Patent number: 5011605
    Abstract: A sewage treatment plant for the purification of waste water includes a chamber container (1) divided by partitions (4) into different sections (6, 7, 8) for pretreatment, biological treatment, chemical treatment, intermediate or retreatment of waste water, each section (6, 7, 8) having several chambers (6a through f, 7a through f, 8a through f) separated from one another by dividing walls (4, 5), chambers (6a through f, 7a through f, 8a through f) being linkable, with regard to inflow technique, in any pre-selectable association depending on the quantity and type of waste water to be treated, and at least one installation for removal of deposited treatment sludge in each of the areas for pretreatment, intermediate treatment and retreatment.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: April 30, 1991
    Assignee: Envicon Luft- und Wassertechnik GmbH & Co. KG
    Inventors: Stefan Pape, Hans-Joachim Bassfeld
  • Patent number: 5000884
    Abstract: The invention refers to an aeration installation for introducing a gas, in which a cover is arranged on a foundation, through which the gas is able to penetrate this covering through individual, delimitable sections.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: March 19, 1991
    Assignee: Envicon Luft- und Wassertechnik GmbH & Co. KG
    Inventor: Hans-Joachim Bassfeld