Patents by Inventor John Lovatt

John Lovatt 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).

  • Process and system for the recovery of vapour
    Publication number: 20040149346
    Abstract: A process and system for the recovery of vapour from a vessel holding a volatile liquid. The delivery of liquid to a vessel (6) is carried out such that at least one zone of negative pressure is created by the movement of the liquid whereby any vapour in the vessel is drawn into the liquid and returned to the vessel therein.
    Type: Application
    Filed: March 18, 2004
    Publication date: August 5, 2004
    Inventors: Peter John Gee, Philip John Lovatt, Christopher Ronald Prince
  • Collet chuck
    Patent number: 4640517
    Abstract: A collet chuck has separable jaws which are freely slidable in a housing and have inner and outer faces engageable by inner and outer sleeves respectively, to urge the work-engaging ends of the jaws radially outwardly or radially inwardly. The jaws are readily replaceable by others of different effective gripping diameters, without the need for replacement of other chuck parts. The inner sleeve and a thrust element for moving the jaws relative to the inner sleeve are added to the assembly only when outward movement of the jaws is required.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: February 3, 1987
    Inventor: John Lovatt
  • Support assembly for supporting pottery articles
    Patent number: 3992139
    Abstract: A support assembly unit and a support assembly formed from such units which can be mounted on a kiln car to support pottery being fired. The unit comprises upper and lower shelves having through holes which receive upper and lower spigots of a plurality of uprights. Each upright is a unitary structure with one or more spigots at the upper and lower ends and may have an intermediate shelf support upon which an intermediate shelf can be rested.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: November 16, 1976
    Assignee: Acme Marls Limited
    Inventor: William John Lovatt