Marginal Spring Connections And Limiting Springs Patents (Class 5/199)
  • Patent number: 11452279
    Abstract: A removable and safe covering adapted to be placed over the entire length of an existing ladder thereby covering the rungs and the spaces therebetween and providing a surface for animals to be able to traverse upwards and downwards along the length of the ladder without falling between the rungs and becoming injured.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 27, 2022
    Inventor: Alex Specha
  • Patent number: 5678261
    Abstract: The present invention relates to a cushion device utilized for a bed, sofa, chair, or seat for a vehicle. The cushion device comprises an outer supporting member (20) having a shock absorbing space (10) and a cushion plate (30) to be elastically installed on the outer supporting member (20). The cushion device of the present invention comfortably accommodates a human body, and has long life.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: October 21, 1997
    Inventor: Young Joon Han
  • Patent number: 4452444
    Abstract: A rebound exerciser for use by an individual in performing a variety of exercises having a frame formed of two symmetrical sections, and a fexible, resilient mat secured to the frame by a plurality of coil springs. The two symmetrical sections are pivotally secured together by two diametrically opposed hinge assemblies which permit the sections to be pivoted to a first compact position wherein the sections are spaced-apart and superimposed to facilitate transportation and storage of the exerciser. The hinge assemblies further permit the sections to be pivoted to a second extended position wherein the sections are in substantially the same plane so that an individual can perform exercises utilizing the mat. The frame is supported above the surface onto which the exerciser is positioned by a plurality of leg members which are releasably secured to the frame.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: June 5, 1984
    Assignees: Imagination Properties, Inc., Carpenter & Associates
    Inventor: Everett E. Schulze, Jr.