Patents by Inventor Alan E. Carpenter

Alan E. Carpenter 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: 4813583
    Abstract: Rigid aerodynamic shells increase the aerodynamic shear efficiency of a bicycle ladened with luggage bags, luggage racks and/or luggage attached to the luggage racks. The aerodynamic shells substantially frontally surround or enclose the luggage bags, racks and luggage attached above the front and rear wheels of the bicycle. The shells are pivotably connected to the bicycle to provide access to the bags, racks and luggage. Contoured luggage bags for connection to the conventional luggage rack are provided to substantially conform to and occupy a majority of the interior space defined by the shells.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: March 21, 1989
    Assignee: Alpine Map Company
    Inventor: Alan E. Carpenter
  • Patent number: 4456277
    Abstract: Human-powered, front-wheel drive tricycle of a 2DS-1IS (2 driven, steerable-1 independent suspension) format having two steerable front wheels in a fully engineered front end, a multi-triangulated space frame and a single trailing rear wheel mounted in an independent swing-arm type suspension. A chain drive system (21+speeds) includes a crank assembly mounted on a prow ahead of the front wheels driving a transfer gear and differential to the split front axle. A transfer gear caliper/disc braking system ahead of the differential provides braking force equally distributed to both front wheels regardless of road conditions, resulting in anti-skid properties. Track/wheelbase ratios above 0.45 provide stability and excellent handling; FWD provides excellent traction. Preferably, all wheels are of the same 20" diameter. Rider is in a semi-recumbent, supine position with handlebars, having shift and braking controls, mounted beneath a rigid seat. Shoulder harness and seat belt system are provided.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: June 26, 1984
    Assignee: Cyclodynamics of Colorado, Inc.
    Inventor: Alan E. Carpenter