Patents by Inventor Howard L. Loewenthal

Howard L. Loewenthal 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: 7980580
    Abstract: The present application discloses several embodiments of clamping devices and quick connect attachment devices. In one embodiment, a clamping device includes two wedge members that are forced together to engage a frame component. In another embodiment, a quick connect attachment or latching assembly includes components that slide together and are then fixed, by moving a protrusion into a recess.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: July 19, 2011
    Assignee: Invacare Corporation
    Inventors: Howard L. Loewenthal, Daniel M. Hulse
  • Patent number: 7891033
    Abstract: According to one embodiment of the present invention, a seat cushion assembly is provided that includes a base cushion and a plurality of inserts. A recess is defined within the base cushion which is adapted to house the inserts. Each of the inserts can be selectively removed from the recess to provide for obliquity adjustment of the cushion assembly. In addition, the inserts may be selectively located on one side of the base cushion or the other to further adjust the inclined orientation of the base cushion. According to another embodiment, a seat cushion assembly is provided that includes a base cushion and a pair of inserts. A recess is defined within the base cushion which is adapted to house the inserts that includes a projection that has a plurality of surfaces that abut a surface of each of the inserts when the inserts are housed within the recess.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: February 22, 2011
    Assignee: Invacare Corporation
    Inventors: Howard L. Loewenthal, Daniel M. Hulse, Michael A. Babinec
  • Publication number: 20090295203
    Abstract: This invention relates to fluid filled sac suitable for use in or as a pressure relieving cushion and including a fluid containing channel structure formed so as to adopt a state when a user sits on the fluid filled sac in which the flow of fluid to the front of the fluid filled sac is prevented or inhibited.
    Type: Application
    Filed: October 16, 2006
    Publication date: December 3, 2009
    Inventors: John Anthony Lewis, Ian Robert Mahoney, Howard L. Loewenthal
  • Publication number: 20090222992
    Abstract: According to one embodiment of the present invention, a seat cushion assembly is provided that includes a base cushion and a plurality of inserts. A recess is defined within the base cushion which is adapted to house the inserts. Each of the inserts can be selectively removed from the recess to provide for obliquity adjustment of the cushion assembly. In addition, the inserts may be selectively located on one side of the base cushion or the other to further adjust the inclined orientation of the base cushion. According to another embodiment, a seat cushion assembly is provided that includes a base cushion and a pair of inserts. A recess is defined within the base cushion which is adapted to house the inserts that includes a projection that has a plurality of surfaces that abut a surface of each of the inserts when the inserts are housed within the recess.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 10, 2009
    Applicant: INVACARE CORPORATION
    Inventors: Howard L. Loewenthal, Daniel M. Hulse, Michael A. Babinec
  • Patent number: 6101678
    Abstract: A handle for a manually movable vehicle or other article, such as a stroller, is infinitely adjustable to enable the person or persons imparting motion to the vehicle to achieve the greatest leverage and/or comfort. A height-adjustment assembly is disposed between and interconnects each extension rod and handlebar of the handle. The height-adjustment assembly includes a plurality of clutch plates and a locking lever having a cam end. The locking lever is manually moved between a locked position in which the lever cam end causes abutment of and friction between the clutch plates thereby preventing relative movement of the plates and securing the handlebar at a selected height, and an unlocked position in which the lever cam end reduces friction between the clutch plates so that the plates are movable relative to one another to enable pivotal movement and height adjustment of the handlebar.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: August 15, 2000
    Assignee: Invacare Corporation
    Inventors: Molly A. Malloy, Howard L. Loewenthal
  • Patent number: 6035975
    Abstract: The wheel lock assembly includes a housing that is either integrally formed on a frame, or provided as a separate component for adjustable mounting on the frame. The housing includes a circular opening that receives a disk that rotates relative to the housing. A handle is either integrally formed with the disk or, alternately, secured to the disk as a separate component, to selectively rotate the disk relative to the housing. An actuating shoe is pivotally mounted to the housing and includes a cam opening that cooperates with a pin secured to the disk at a position spaced from the central axis of rotation of the disk to convert the rotational movement of the handle and disk into translational movement of the shoe. This allows the shoe to be moved between locked and unlocked positions relative to the wheel of a wheeled apparatus such as a wheelchair, patient transport, stroller, or the like. The cam opening may also adopt alternative configurations to vary the travel of the shoe as desired.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: March 14, 2000
    Assignee: Invacare Corporation
    Inventor: Howard L. Loewenthal
  • Patent number: D620297
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: July 27, 2010
    Assignee: Invacare Corporation
    Inventors: Howard L. Loewenthal, Daniel M. Hulse, Michael A. Babinec