Patents by Inventor JoAnne M. Hallett

JoAnne M. Hallett 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).

  • Dimensionally stable sheet handling shaft assembly and method of making same
    Patent number: 5744238
    Abstract: A shaft assembly having desirably stable dimensions for forming a precise sheet drive nip in a sheet handling machine such as a reproduction machine. The shaft assembly includes a shaft member having an outer surface, and a sheet drive-effecting member formed on the outer surface of their shaft member. The sheet drive-effecting member consists essentially of a first dimensionally stable molded material and has desired external dimensions. Importantly, the drive-effecting member has a thermoplastic elastomeric (TPE) material layer formed over the desired external dimensions for forming the precise sheet drive nip. The TPE material consists essentially of a thermoplastic vulcanizate (TPV) including a vulcanized rubber phase and a plastic material phase.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: April 28, 1998
    Assignee: Xerox Corporation
    Inventors: Stephen Limperis, JoAnne M. Hallett