Patents by Inventor William Crewe

William Crewe 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: 8813614
    Abstract: A multi-bit tool (1) including a housing (2) and a drive input shaft (3). The housing incorporates at least two storage recesses (5) accessible from outside the housing. The housing may include a first (6) and a second (7) socket, each axially aligned with the drive input shaft, the first socket being smaller than the second socket and positioned intermediate the second socket and the drive input shaft such that tool bits (4) driven by the first socket pass through the second socket to drivably engage with the first socket. It is preferable that the storage recesses communicate with a central bore to permit the active bit to be internally interchanged. To this end the housing may further incorporate a bore axially aligned with the drive input shaft and the first and second sockets.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: August 26, 2014
    Assignee: Crewe-Tech Pty Ltd
    Inventor: William Crewe
  • Publication number: 20130199343
    Abstract: A multi-bit tool (1) including a housing (2) and a drive input shaft (3). The housing incorporates at least two storage recesses (5) accessible from outside the housing. The housing may include a first (6) and a second (7) socket, each axially aligned with the drive input shaft, the first socket being smaller than the second socket and positioned intermediate the second socket and the drive input shaft such that tool bits (4) driven by the first socket pass through the second socket to drivably engage with the first socket. It is preferable that the storage recesses communicate with a central bore to permit the active bit to be internally interchanged. To this end the housing may further incorporate a bore axially aligned with the drive input shaft and the first and second sockets.
    Type: Application
    Filed: January 12, 2011
    Publication date: August 8, 2013
    Applicant: Crewe-Tech Pty Ltd
    Inventor: William Crewe
  • Patent number: 6729985
    Abstract: A continuously variable reversible transmission including an input shaft (2), a housing (1), an input arm (4), first and second CVT shafts (5.6), a fixed input wheel (35), a ratio selector mechanism, an overall output wheel (36) and an output shaft (24). The input arm (4) is fixed to the input shaft (2) and extends substantially perpendicular to the input shaft. At each end of the input arm, a first (5) and second (6) CVT shaft is rotatably mounted, with the axes of the CVT shafts extending parallel to the input shaft. The fixed input wheel (35) may be aligned with the axis of the input shaft. The first CVT shaft (5) is coupled with the fixed input wheel (35), the second CVT shaft (6) is coupled with the first CVT shaft (5) and the output wheel (36) which is fixed to the output shaft (24) is coupled with the second CVT shaft.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: May 4, 2004
    Assignee: Epidrive PTY Ltd.
    Inventors: William Crewe, Richard Monk
  • Publication number: 20020183144
    Abstract: A continuously variable reversible transmission including an input shaft (2), a housing (1), an input arm (4), first and second CVT shafts (5.6), a fixed input wheel (35), a ratio selector mechanism, an overall output wheel (36) and an output shaft (24). The input arm (4) is fixed to the input shaft (2) and extends substantially perpendicular to the input shaft. At each end of the input arm, a first (5) and second (6) CVT shaft is rotatably mounted, with the axes of the CVT shafts extending parallel to the input shaft. The fixed input wheel (35) may be aligned with the axis of the input shaft. The first CVT shaft (5) is coupled with the fixed input wheel (35), the second CVT shaft (6) is coupled with the first CVT shaft (5) and the output wheel (36) which is fixed to the output shaft (24) is coupled with the second CVT shaft.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 5, 2002
    Inventors: William Crewe, Richard Monk