Patents by Inventor Steven J. Haehn

Steven J. Haehn 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).

  • Push filter with floating key lock
    Patent number: 8137551
    Abstract: A filter assembly for fluid filtration having a push-activated lock and release mechanism. A push filter design activates a floating key lock upon insertion and extraction, where the filter key may be used simultaneously as a lock and as an identifier for particular filter attributes. The filter base may be situated inline, and in fluid communication, with influent and effluent piping, such as within a refrigerator. The filter housing assembly may be attached to, and removed from, the filter base by a push-actuated release. Upon insertion, the filter key shifts the filter lock longitudinally to receive interlocking segments. Upon extraction, the same axial push shifts the filter lock further to align the interlocking fingers within gaps that allow for easy extraction. The specific key lock design allows a user to identify and match certain filter configurations received by the mechanical support, and reject other filter configurations.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: March 20, 2012
    Assignee: KX Technologies, LLC
    Inventors: Stephen P. Huda, Steven J. Haehn, Michael J. Sherman
  • Apparatus and Method for Isolation from and Support of a Carbon Filtration System from an Ion Exchange System
    Publication number: 20100320152
    Abstract: A combination filtration and ion exchange system is provided. In one embodiment, the system includes a valve rotor, a carbon treatment tank, an ion exchange treatment tank and a valve. The valve rotor having a source water inlet, a service water outlet, a water treatment outlet, a water treatment inlet and a drain outlet. The carbon treatment tank having a service inlet and a service outlet, the service inlet coupled to the water treatment outlet. The ion exchange treatment tank having a service inlet and a service outlet, and the service outlet is coupled to the water treatment inlet.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Applicant: ECOWATER SYSTEMS LLC
    Inventors: David T. BARDWELL, Steven J. HAEHN
  • Apparatus and Method for Isolation from and Support of a Carbon Filtration System from an Ion Exchange System
    Publication number: 20100101990
    Abstract: A combination filtration and ion exchange system is provided. In one embodiment, the system includes a valve rotor, a carbon treatment tank, an ion exchange treatment tank and a valve. The valve rotor having a source water inlet, a service water outlet, a water treatment outlet, a water treatment inlet and a drain outlet. The carbon treatment tank having a service inlet and a service outlet, the service inlet coupled to the water treatment outlet. The ion exchange treatment tank having a service inlet and a service outlet, and the service outlet is coupled to the water treatment inlet.
    Type: Application
    Filed: April 25, 2007
    Publication date: April 29, 2010
    Applicant: ECOWATER SYSTEMS LLC
    Inventors: Steven J. Haehn, David T. Bardwell
  • Water treatment device
    Patent number: D557762
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: December 18, 2007
    Assignee: Ecowater Systems LLC
    Inventors: Allan Novotny, Christine Fletcher, Steven J. Haehn