Patents by Inventor Leon Helfet

Leon Helfet 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: 20210191152
    Abstract: The invention allows the wearer to easily retain and locate the optics in various positions on the bridge of the nose to enable viewing through different optical field depths as in the case of tri-focals and other progressive lenses. Another benefit of soft hooks is the prevention of the glasses being dislodged due to moisture such as sweat, and sudden movement such as in sports or working activities. The design focusses on the invention being able to apply to eyeglass arms of various shapes and thicknesses including readers, sunglasses and fashionable straight arms. A unique feature is the simple attachment of the invention as a result of the voids between entry and exit points for the prevention of a ‘caterpillar’ effect. The design facilitates robust positional locational stability on the frame arms, but still allows adjustment for varying positioning needs.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 24, 2021
    Inventors: Leon Helfet, Todd James Hannon
  • Patent number: 8567348
    Abstract: A manual litter box provides various advantages over the prior art. In particular, in one embodiment, the manual litter box is configured to use a disposable cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a manual shuttle chassis drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the manual litter box is configured to be used with all types of litter including crystal type litter.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: October 29, 2013
    Assignee: Radio Systems Corporation
    Inventors: Alan Jay Cook, Thomas Devlin, Leon Helfet, Kevin John Augustyniak
  • Publication number: 20110265728
    Abstract: A manual litter box is disclosed which provides various advantages over the prior art. In particular, in one embodiment, the manual litter box is configured to use a disposable cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a manual shuttle chassis drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the manual litter box is configured to be used with all types of litter including crystal type litter.
    Type: Application
    Filed: July 8, 2011
    Publication date: November 3, 2011
    Applicant: Lucky Litter LLC
    Inventors: Alan Jay Cook, Thomas Edward Devlin, Leon Helfet, Kevin John Augustyniak
  • Patent number: 7997230
    Abstract: A manual litter box provides various advantages over the prior art. In particular, in one embodiment, the manual litter box is configured to use a disposable cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a manual shuttle chassis drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the manual litter box is configured to be used with all types of litter including crystal type litter.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: August 16, 2011
    Assignee: Lucky Litter LLC
    Inventors: Alan Jay Cook, Thomas Edward Devlin, Leon Helfet, Kevin John Augustyniak
  • Publication number: 20100095898
    Abstract: A manual litter box is disclosed which provides various advantages over the prior art. In particular, in one embodiment, the manual litter box is configured to use a disposable cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a manual shuttle chassis drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the manual litter box is configured to be used with all types of litter including crystal type litter.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 22, 2010
    Applicant: Lucky Litter LLC
    Inventors: Alan Jay Cook, Thomas Edward Devlin, Leon Helfet, Kevin John Augustyniak
  • Patent number: 7601258
    Abstract: An improved water return system for water reservoirs such as aquariums and ponds that provides a return of filtered water through a series of holes rather than a curved weir or spillway. The use of the holes provides for high oxygenation of the water prior to its return to the water reservoir to the benefit of life in the water reservoir. Further, the use of the holes provides reduced noise upon the return of the water because of the surface tensions attracting adjacent streams to each other. Also, placement of the holes provides a damming effect for the filter media that can become a site for the cultivation of beneficial bacteria that are necessary to remove ammonia and nitrites from the water by positioning the media mostly out of water, thereby allowing necessary oxygen to be freely available to grow bacteria.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: October 13, 2009
    Inventor: Leon Helfet
  • Patent number: 7425274
    Abstract: An aquarium filter which is constructed of a housing which includes a module. The module is divided into a plurality of different sections. A separate filter cartridge is to be mounted within each section. Each filter cartridge is to be removable and replaceable in conjunction with its specific section.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: September 16, 2008
    Inventor: Leon Helfet
  • Patent number: 7155999
    Abstract: A strap wrench which includes a plurality of gripping pads located on the strap that facilitates tight engagement of the cylindrical object that is used to be located thereabout for the purpose of gripping and turning of the cylindrical object. The strap wrench also includes a brake that provides for securely locking of the position of the strap when it is in its tightly mounted position preventing any loosening movement of the strap. The brake includes a ratcheting mechanism that permits movement of the handle in only one position when the brake is in the locked position. The strap may include a joint assembly which will permit the strap to be separated to be located in conjunction with a cylindrical object and then rejoined.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: January 2, 2007
    Inventor: Leon Helfet
  • Patent number: 6789450
    Abstract: A strap wrench for turning generally cylindrical objects where the strap wrench includes a manually rotatable thumb wheel which is mounted within a handle. Rotation of the thumb wheel produces lineal movement of a strap that attaches to the handle. The strap wrench is firmly mounted about a generally cylindrical object and applying a twisting force to the strap wrench is to result in turning movement of the generally cylindrical object.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: September 14, 2004
    Inventor: Leon Helfet
  • Patent number: 6178563
    Abstract: A toilet deodorizer comprising a pump housing in the form of a cylinder 52 and a piston 54. The cylinder 52 is to be mounted on the movable toilet seat 14 of a conventional toilet. When sitting on the toilet seat, the toilet seat moves which causes a piston 54 to be moved within the cylinder 52 which causes liquid to be dispensed from a pump chamber 50 through an outlet valve 100 in contact with a deflector plate 134 which disperses the liquid within a wide area of the toilet bowl 10. When the user gets up from the toilet seat, the toilet seat is lifted which causes retraction movement between the piston 54 and the cylinder 52 which causes a new quantity of liquid to be pulled through an inlet valve 44 into the pump chamber while maintaining the outlet valve closed.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: January 30, 2001
    Inventor: Leon Helfet