Band Type Patents (Class 285/365)
  • Patent number: 3951439
    Abstract: A modular assembly for constructing conduits of the type used for underground telephone lines, electrical lines, and the like. The specification discloses several embodiments each of which generally comprises a plurality of side-by-side corrugated plastic tubing sections. These sections are provided with laterally extending means which engage to prevent relative longitudinal movement between adjacent sections. Preferably, longitudinally spaced and circumferentially extending wrapping or binding members encircle the assembled section to prevent relative movement between the sections in the lateral direction. The specification and drawings also disclose several forms of joints for connecting aligned assemblies. In the preferred form, the joints include resilient foam members having spaced openings for receiving the aligned ends of the tubes in successive sections. Additionally, clamp means are provided for drawing the sections together to compress the foam members.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: April 20, 1976
    Assignee: Hancor, Inc.
    Inventor: John D. Schmunk
  • Patent number: 3937501
    Abstract: A pipe coupling for coupling two pipe ends with annular flanges spaced from the end faces of the pipe ends comprises a plurality of part shells the adjacent ends of two of which are connected by a clamping lever lock and the remaining adjacent ends of which are flexibly connected together, means in the part shells for engaging behind the annular flanges on the pipe ends and a coupling sleeve slidable in the pipe ends between the flanges and having annular seals, sealing the pipe ends to the coupling sleeve.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: February 10, 1976
    Inventor: Karl Weinhold
  • Patent number: 3930674
    Abstract: The invention relates to a pressure fluid coupling and in particular a high pressure hydraulic coupling. The coupling comprises two hollow flanged members, one of which carries a spigot having an O-ring near its end. The spigot is inserted into the bore of the other member and when it homes, the front faces of the flanges will abut. A resilient clip clips over the flanges to hold the coupling members together. Both coupling members may however be female members and a coupling device having "O"-rings near its ends may be inserted into the bores of coupling members.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: January 6, 1976
    Inventor: Nils Gunnar Jonsson