Patents by Inventor Melville G. Davey

Melville G. Davey 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: 5794342
    Abstract: An oscillating blade razor for removing hair projecting from skin is described. At least one cutting blade is mounted to a shuttle which is nested within a cartridge such that the shuttle is free to move in a longitudinal oscillating motion relative to the cartridge. The cartridge is removably affixed to the head of the razor in which is disposed a cantilever type bimorph piezoelectric motor, the proximal end of which is fixedly mounted in the head such that the distal end engages the shuttle and drives it in a reciprocating, oscillatory motion when the cartridge is engaged with the head and power applied. The head further incorporates the mechanism for engaging the cartridge. In one preferred embodiment, the cartridge incorporates electrical contact means for sensing the end travel of the oscillating shuttle. The head is disposed on the distal end of a handle which contains a battery, an on/off switch, and the electronic means for driving the distal end of the piezoelectric motor in an oscillatory motion.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: August 18, 1998
    Inventor: Melville G. Davey
  • Patent number: 5636270
    Abstract: This invention describes a universal method of producing a plurality of analog telephone signal types, commonly used repeatedly, with telephone peripheral, terminal and central office equipment, using a single means. Signal types include dual tone multi-frequency (DTMF), dial tone, voice prompt, voice message, busy tone, ring back tone, frequency shift key (FSK), fax and modem, to name a few of the most common. The invention describes specific telephone devices and systems that are made more versatile by, or possible by, the application of this analog telephone signal production method. One such device is an acoustically coupled telephone automatic dialing device (ACTADD) in which the application of this analog telephone signal production method results in an extremely compact and versatile product. The invention further describes a solution for reliable acoustic coupling, as well as certain user friendly features for an ACTADD.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: June 3, 1997
    Inventor: Melville G. Davey