Patents by Inventor Arthur William Richardson

Arthur William Richardson 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).

  • Tube plug
    Patent number: 4114654
    Abstract: A bore plug comprises a deformable sleeve to fit inside a bore to be plugged, two tapered members interfitting with the sleeve to engage opposite ends thereof, and an intercoupling of the tapered members actuatable to draw the latter together and deform the sleeve into circumferential engagement with the interior of the bore at or near each end of the sleeve. Provision of bored channels in one of the tapered members and the sleeve allows introduction of flowable sealing material after deformation of the sleeve.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: September 19, 1978
    Assignee: Furmanite International Limited
    Inventor: Arthur William Richardson