Patents by Inventor Lawrence McFarland Allison

Lawrence McFarland Allison 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: 3938741
    Abstract: The shower head comprises a safety device connected between the water supply pipe and the shower nozzle and comprising a hollow housing having an entry end connectible to the water supply pipe, a valve seat provided in the housing in spaced relation to the entry end thereof, temperature responsive power mechanism located in the housing between the entry end thereof and the valve seat, and a valve member connected to the other end of the power mechanism for movement thereby upon an increase in temperature of the water flowing through the housing above a given operating temperature. The power mechanism is constructed and arranged to move the valve member toward the valve seat to close the same when the temperature of the water in the housing reaches the given operating temperature.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: February 17, 1976
    Assignee: Apor Industries, Inc.
    Inventor: Lawrence McFarland Allison