Patents by Inventor Leonard Brian Hazell

Leonard Brian Hazell 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).

  • Method for processing a crosslinkable elastomeric composition comprising Silica
    Patent number: 8444888
    Abstract: A method for processing a crosslinkable elastomeric composition including at least one silica reinforcing filler and at least one sulfur-containing organosilane compound by using at least one processing apparatus having an internal metal surface, includes the following steps: (a) pretreating at least one portion of the internal metal surface of the at least one processing apparatus with at least one sulfur-free organosilane compound having at least one hydrolizable group; (b) feeding the crosslinkable elastomeric composition including silica to the at least one processing apparatus; and (c) processing the crosslinkable elastomeric composition.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: May 21, 2013
    Assignee: Pirelli Tyre S.p.A.
    Inventors: Alan Bottomley, Leonard Brian Hazell
  • Method for Processing a Crosslinkable Elastomeric Composition Comprising Silica
    Publication number: 20090220805
    Abstract: A method for processing a crosslinkable elastomeric composition including at least one silica reinforcing filler and at least one sulfur-containing organosilane compound by using at least one processing apparatus having an internal metal surface, includes the following steps: (a) pretreating at least one portion of the internal metal surface of the at least one processing apparatus with at least one sulfur-free organosilane compound having at least one hydrolizable group; (b) feeding the crosslinkable elastomeric composition including silica to the at least one processing apparatus; and (c) processing the crosslinkable elastomeric composition.
    Type: Application
    Filed: April 5, 2006
    Publication date: September 3, 2009
    Applicant: PIRELLI TYRE S.P.A.
    Inventors: Alan Bottomley, Leonard Brian Hazell