Patents Assigned to Interfit, Inc.
  • Patent number: 4506917
    Abstract: A pipe connection fitting for connecting a branch pipe to a main pipe has a body with a nipple adapted to enter a branch opening in a main pipe and a bore in communication with the nipple for the connection of a branch conduit to the body. A seal surrounding the nipple for sealing against the pipe is mounted on the body. A pair of opposed ears are integral with the body. A strap has its free ends removably secured to the ears respectively. The strap has a threaded opening midway between the ends thereof with a break-away screw threaded through the threaded opening for engaging the pipe to secure the body to the pipe.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: March 26, 1985
    Assignee: Interfit, Inc.
    Inventor: Hansen Arne
  • Patent number: 4417626
    Abstract: An adjustable pendent sprinkler assembly has a thermally activated sprinkler head with a releasable cap and a tube spaced above the sprinkler head for securing the assembly to a sprinkler system tee. A plug is slidably mounted in the upper end of the tube where it is retained against downward movement by a release mechanism. An outer sleeve is threaded to the tube and fixedly secured to the sprinkler head for raising and lowering the sprinkler head. An inner sleeve is mounted in the tube for axial movement only and is spaced above the sprinkler head with its upper end holding the release mechanism against release. An intermediate sleeve is threaded to the inner sleeve and has its lower end supported end by the releasable cap of the sprinkler head to releasably support the assembled inner and intermediate sleeves which have inner diameters greater than the outer diameter of the plug to provide for passage of the plug therethrough on its release.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: November 29, 1983
    Assignee: Interfit, Inc.
    Inventor: Arne Hansen