Patents by Inventor Robert D. Chase

Robert D. Chase 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: 11041487
    Abstract: A wastewater sump assembly for receiving and disposing of undesired fluid and, in some cases, solid waste is disclosed. A sump basin formed from a base, an upstanding wall and a top which are all defined from a single, integral, monolithic material may be employed. The top of the monolithic basin includes a pump access aperture sized to allow passage of a submersible pump. Pipe stubs are provided in a recessed area of the top to allow for easy connection to outlet and vent piping. Interchangeable switches of differing types, e.g. a diaphragm switch and a float switch can be utilized with the sump basin. Certain switch subassemblies include a handle to facilitate easy removal. The handle may also be utilized to hold a cord seal in place atop the sump. A diaphragm switch in accordance with the present disclosure may be positioned externally of the sump.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 22, 2021
    Assignee: FRANKLIN ELECTRIC COMPANY, INC.
    Inventors: Steven C. Gray, Robert D. Chase, Larry D. Talbott, Scott E. Stayton, K. Lynn Doughty
  • Patent number: 5197834
    Abstract: A machine tool vise is provided with a set of soft jaws. The soft jaws attach inside and against two master jaws. Both jaws of the vice are equipped with an alignment mechanism to position the soft jaws to assure repositioning. Each jaw is provided with a lenthwise slot which provides a registration face at right angles to an upright registration face at the master jaw. The soft jaw is provided with a bracket that registers on the two faces just mentioned to obtain precise repositioning in two dimensions. Positioning in the third dimension is accomplished by use of a registration pin joining the soft jaw to the master jaw, and a tapered set screw threading into a chamfered opening is used along with the pin to accomplish clamping, thereby assuring complete registration of the bracket holding the soft jaw in the vice. The soft jaws can be mounted, removed and later returned with assurances that the soft jaws are held at a fixed location with respect to the cutter and spindle supporting the cutter.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: March 30, 1993
    Inventors: Russell C. Chase, Donald C. Chase, Robert D. Chase, R. Lee Chase