Plural Gearing In Series Patents (Class 476/27)
  • Patent number: 8864622
    Abstract: A drive train apparatus (1) adapted for driving a pan and tilt head, which in use is intended to support a payload (for example a video camera), the apparatus includes respective successive drive elements (2, 3, 4) so coupled as to communicate a rotational movement applied at one end of the apparatus (1) from an output of a rotational input device (8) to a rotational output (16) disposed at the other end of the apparatus (1), in a manner whereby the rotational velocity of the rotational movement is reduced across the drive elements (2, 3, 4) thereby converting the torque applied to the input of each drive element (2, 3, 4) into an increased torque at the output of each drive element (2, 3, 4); a first stage one of the drive elements including a belt drive.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 21, 2014
    Assignee: Vitec Group PLC
    Inventors: Andrew R. B. Codd, Martin G Smith
  • Patent number: 8570607
    Abstract: A scanner drive system is disclosed. The scanner drive system has a drive motor. The drive motor has a worm gear attached to the motor spindle. The worm gear has multiple leads. The worm gear is meshed with a helical gear. The helical gear is coupled to a drive train that moves a scanning module.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: October 29, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Eric L Andersen
  • Publication number: 20100204003
    Abstract: A continuously variable speed-changing transmission mechanism of a sheet laminating apparatus includes a control module, a speed changing module, a speed reducing module and a hot press roller module. The continuously variable speed-changing transmission mechanism can laminate a sheet article at a stepless variable speed.
    Type: Application
    Filed: May 11, 2009
    Publication date: August 12, 2010
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventors: Yung-Tai Pan, Chang-Qi Wu
  • Patent number: 7706041
    Abstract: A scanning module of an image scanner for scanning a document includes a base, a reflective mirror stand mounted on the base, a shaft rotatably mounted on the reflective mirror stand, a reflective mirror member fixed on the shaft and rotatable with the shaft, and a gear set pivotally coupled to the shaft for rotating and driving the shaft to adjust the reflective angle of the reflective mirror member.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: April 27, 2010
    Assignee: Primax Electronics Ltd.
    Inventors: Hsi-Yu Chen, Kuan-Yang Chen
  • Publication number: 20030017909
    Abstract: A torque limiter to be operatively coupled to an engine is secured to the outer periphery of a driving shaft through screwing-engagement. The driving shaft and the torque limiter are screw-engaged and fixed to each other so that the torque limiter is pushed or urged against a seating face formed at the outer periphery of the driving shaft. The seating face abuts against the torque limiter restricting the screwing-movement of the driving shaft. Rotation force is transmitted between the driving shaft and the torque limiter via the seating face. A cylindrical member is disposed between the torque limiter and the seating face of the driving shaft. The cylindrical member is press-fitted and fixed to the outer periphery of the driving shaft, so that the power transmission between the driving shaft and the torque limiter is also performed through the press-fit portion between the cylindrical member and the driving shaft.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 23, 2003
    Inventors: Masakazu Murase, Fuminobu Enokijima, Naoya Yokomachi, Tatsuya Koide
  • Patent number: 6350317
    Abstract: A linear drive assembly for moving a body associated with processing a substrate is disclosed. The linear drive assembly includes a first gear and a second gear, which is operatively engaged with the first gear. The linear drive assembly further includes a positioning member having a first portion and a second portion. The first portion is movably coupled to the second gear in a linear direction, and the second portion is fixed to a component associated with processing a substrate.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: February 26, 2002
    Assignee: Lam Research Corporation
    Inventors: Fangli Hao, Keith Dawson