Patents by Inventor Darwin D. Spencer, JR.

Darwin D. Spencer, JR. 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: 10934725
    Abstract: An angle tapping block allows for lifting a flooring plank from a subfloor surface and tapping the flooring plank. The angle tapping block includes a beating block that has multiple surfaces, including a beating block beating surface for beating with a hammer and a beating block tapping surface for tapping the side of the flooring plank. The angle tapping block also includes a lifter plate attached to the beating block and positioned below the beating block. The lifter plate can be placed beneath a flooring plank and lift from the subfloor surface for tapping.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: March 2, 2021
    Assignee: CRAIN CUTTER COMPANY, INC.
    Inventors: Donald W. Suwyn, Lance Darrell Crain, Darwin D. Spencer, Jr.
  • Publication number: 20200256069
    Abstract: An angle tapping block allows for lifting a flooring plank from a subfloor surface and tapping the flooring plank. The angle tapping block includes a beating block that has multiple surfaces, including a beating block beating surface for beating with a hammer and a beating block tapping surface for tapping the side of the flooring plank. The angle tapping block also includes a lifter plate attached to the beating block and positioned below the beating block. The lifter plate can be placed beneath a flooring plank and lift from the subfloor surface for tapping.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Donald W. Suwyn, Lance Darrell Crain, Darwin D. Spencer, JR.
  • Patent number: 10315318
    Abstract: A cushion back cutter is formed from a first side plate, a second side plate, and a center plate between the first and second side plates. The center plate includes a slot that forms a blade holding pocket with a bottom opening to receive one or more blades. A blade clamp is inserted into the blade clamp opening of the first side plate, and a blade clamp fastener tightens to cause the blade clamp to press the blades against the second side plate to hold the blades in position. The center side plate forms a row guide for guiding the blades of the cutter between adjacent rows of carpet tufts. The row guide may include a region having continuous notches, which tend to move the carpet tufts out of the path of the blades to avoid shearing them.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: June 11, 2019
    Assignee: Crain Cutter Company, Inc.
    Inventors: Darwin D. Spencer, Jr., Tan Dinh Nguyen, Gregory Joseph Chambers
  • Publication number: 20170239824
    Abstract: A cushion back cutter is formed from a first side plate, a second side plate, and a center plate between the first and second side plates. The center plate includes a slot that forms a blade holding pocket with a bottom opening to receive one or more blades. A blade clamp is inserted into the blade clamp opening of the first side plate, and a blade clamp fastener tightens to cause the blade clamp to press the blades against the second side plate to hold the blades in position. The center side plate forms a row guide for guiding the blades of the cutter between adjacent rows of carpet tufts. The row guide may include a region having continuous notches, which tend to move the carpet tufts out of the path of the blades to avoid shearing them.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 24, 2017
    Inventors: Darwin D. Spencer, JR., Tan Dinh Nguyen, Gregory Joseph Chambers