Patents by Inventor Edgar L. Smith

Edgar L. Smith 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).

  • Device for extracting valve packing
    Patent number: 4509392
    Abstract: A device is described for cutting and extracting packing from around a shaft such as a valve stem whereby compression of the handles of the device causes an elongated cutter to penetrate and cut the packing material. The device is characterized by having a cutting head which partially encircles the shaft and which can be exchanged for other, similar shaped cutting heads having elongated cutters of different dimensions for use in cutting and removing packing of varying size.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: April 9, 1985
    Inventor: Edgar L. Smith