Patents by Inventor Michael P. Haggerty

Michael P. Haggerty 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: 5490471
    Abstract: A raft for wheelchairs includes a pair of elongated floatable pontoons which are fixed in spaced apart parallel relationship by forward and rearward cross-members. A pair of channel members are mounted between the cross-members, in spaced apart parallel relationship, a distance to receive the wheels of a wheelchair thereon. Preferably, the channel members are oriented parallel to the pontoons, and a pair of ramps are removably connected to one end of the channel members to permit a wheelchair to roll up and on to the raft, as well as exit off the opposite end of the raft. A receiving bracket is mounted to a forward end of the raft and a second receiving bracket is mounted on the rearward end of the raft, to removably receive a motor for powering the raft.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: February 13, 1996
    Inventor: Michael P. Haggerty
  • Patent number: 4167999
    Abstract: A conveyor including at least two endless chains each comprising a plurality of pivotally inter-connected links, each link comprising a synthetic plastics material, having a conveying surface, and having attachment means whereby additional elements may be mounted thereon and at least some of the links in each chain being engageable by a drive means.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: September 18, 1979
    Assignee: Wall & Leigh Thermoplastics Limited
    Inventor: Michael P. Haggerty