Patents by Inventor Shaffeek A. Yusuf

Shaffeek A. Yusuf 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: 8205524
    Abstract: A torque limiting handle assembly is described. One member of a two member torque limiting handle assembly has resiliently depending legs extending about its rotational axis. The second member has features arranged such that on rotation of the first member, the features contact the legs so that when a reaction torque of the second member is less than a threshold value, the second member rotates with the first member and when a reaction torque of the second member is greater than the threshold value, the legs resiliently deflect so that the features simply pass across the legs and the second member does not rotate with the first member.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: June 26, 2012
    Assignee: Leggett & Platt Canada Co.
    Inventor: Shaffeek A. Yusuf
  • Publication number: 20090267395
    Abstract: A pivot assembly has a pivot support member with a keyway. The keyway has two oppositely directed longer keyway wings extending from a middle section and the middle section has two oppositely directed shorter keyway wings extending in a direction transverse to that of the longer keyway wings. The shorter keyway wings have convexly radiused ends. The pivot assembly also has a pivot with an attachment portion and a key projecting rearwardly from the attachment portion. The key has a rearward section with oppositely directed longer key wings which are longer than the shorter keyway wings but sufficiently short to allow the longer key wings to pass through the keyway. The key also has a middle section between the rearward section and the attachment portion. The middle section has oppositely directed shorter key wings with convexly radiused ends. The shorter key wings extend in a direction aligned with that of the longer key wings.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 29, 2009
    Applicant: LEGGETT & PLATT CANADA CO.
    Inventors: ROBERT W. DOERNER, SHAFFEEK A. YUSUF
  • Publication number: 20090235775
    Abstract: One member of a two member torque limiting handle assembly has resiliently depending legs extending about its rotational axis. The second member has features arranged such that on rotation of said first member, the features contact the legs so that when a reaction torque of the second member is less than a threshold value, the second member rotates with the first member and when a reaction torque of the second member is greater than the threshold value, the legs resiliently deflect so that the features simply pass across said legs and the second member does not rotate with the first member.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 24, 2009
    Applicant: LEGGETT & PLATT CANADA CO.
    Inventor: SHAFFEEK A. YUSUF
  • Patent number: D551867
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: October 2, 2007
    Assignee: Leggett & Blatt Canada Co.
    Inventor: Shaffeek A. Yusuf
  • Patent number: D554396
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: November 6, 2007
    Assignee: Leggett & Platt Canada Co.
    Inventors: Shaffeek A. Yusuf, David Watkins