Patents by Inventor Samuel H. Davis

Samuel H. Davis 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: 4432571
    Abstract: A retainer gland and gland assembly for mechanical joint pipe. The retainer gland has at least one hinge arm extending axially from a side of a flat ring flange portion on the opposite side of the flange ring from a circular rib gland portion. The hinge arm has a transverse hole through its outer end. The gland assembly includes two identical retainer glands encircling a spacer pipe the ends of which are inserted into opposed mechanical joint bells. The flange ring of each retainer gland is bolted to the flange of the respective mechanical joint bell, and the hinge arms of the two glands are pivotally connected by a hinge bolt passing through the transverse holes. The resulting restrained mechanical joint connection not only permits assembly of angularly misaligned pipes, up to the limits allowed by the standard mechanical joint bells, but also accommodates changes in angular alignment after installation, due to settling.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: February 21, 1984
    Inventor: Samuel H. Davis
  • Patent number: 4076281
    Abstract: An internally threaded mechanical-joint bell fitting for cast iron pipe is adapted to be screwed onto an externally threaded end of a plain pipe section. The fitting has an integral bolting flange circumscribing the mouth of the bell and preferably includes a circumferential water stop flange at the smaller threaded end of the fitting. The fitting also includes mounting pads at the threaded end for attaching a free-standing support structure. The support structure consists of a pair of angle columns bolted at their upper ends to the mounting pads of the bell fitting and bolted at their lower ends to brackets that are adapted in turn to be bolted to studs preset in poured concrete footings for a tank or building wall. The bracket feet are bifurcated so that each bracket can bridge a water stop barrier set into the top surface of the wall fitting.
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: February 28, 1978
    Inventor: Samuel H. Davis
  • Patent number: 4071267
    Abstract: A pipe wall casting for installation in a poured concrete tank wall. The length of the wall casting is equal to the wall thickness, and the ends of the wall casting are grooved or shouldered for use with standard split-clamp couplings. A radially spaced annular shroud surrounds each end of the connector to provide an access well having clearance for installing or removing a split-clamp coupling. An integral water-stop flange around the outside of the shroud has outwardly extending tabs provided with rigging holes for mounting the wall casting on a free-standing support structure independently of the formwork for the concrete wall.
    Type: Grant
    Filed: April 27, 1976
    Date of Patent: January 31, 1978
    Inventor: Samuel H. Davis