Patents Assigned to Charles Allen
  • Patent number: 5547393
    Abstract: A beauty salon appliance workstation for organizing beauty salon appliances such as blow dryers, curling irons and the like. A cabinet is provided with receptacles for storing a number of appliances and each appliance is associated with a separate retractable extension cord. Further, each appliance is provided with a short "pigtail" type power cord so that when connected to a retractable extension cord no dangling loop is power cord is formed when the appliances are stored in the receptacles.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: August 20, 1996
    Assignee: Charles Allen
    Inventor: Janice Jansen
  • Patent number: 4617884
    Abstract: An apparatus and method by which possibly destructive stress of torsional vibration in a rotating crankshaft/flywheel system of a multicylinder internal combustion engine is avoided by effectively isolating the flywheel from the crankshaft for torsional vibration considerations. The flywheel and crankshaft are coupled by a resilient coupling which accommodates angular movement between the components and which has a torsional spring rate which is relatively low compared to the torsional spring rate of a conventional crankshaft/flywheel system. The coupling reduces the natural frequency of torsional vibration of the system to a frequency well below the normal operating range of the engine in terms of revolutions per minute, thereby substantially eliminating the effects of torsional vibration in the normal operating range of the engine.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: October 21, 1986
    Assignee: Charles A. Allen
    Inventors: Charles A. Allen, Van D. Durrett