Patents by Inventor Timothy A. Clapp

Timothy A. Clapp 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: 10240643
    Abstract: A self-contained clutch for diesel engines for off-highway implementation is provided. A stationary friction disc, pressure plate and endplate sandwich a pair of rotating separator discs. Attenuation of vibration damping of the rotator discs may be achieved by a centrifugal weight. A pulse-width-modulated DC motor or valve is employed in association with a hydraulic actuator to control pressure to the clutch piston. An RFID tag uniquely identifies the nature and parameters of the clutch itself and is associated with the clutch such that the controller can most efficiently operate the clutch. Heat is dissipated by an oil pump servicing the support bearings and/or by the integration of a centrifugal fan into the heat disc stack.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: March 26, 2019
    Assignee: PT TECH, LLC
    Inventors: Timothy A. Clapp, Richard E. Cole, David A. Farwell, Tyler A. Naumoff, David J. Morris
  • Patent number: 10240648
    Abstract: An electromagnetic-released, multi-disc, enclosed safety brake for primary use in offshore marine winch applications includes a stationary coil housing that encompasses springs that apply pressure to an armature, a pair of separator plates, three friction plates and a stationary endplate. The multi-disc brake is released by means of a DC voltage applied to the brake coil. The excited coil generates an electromagnetic force that attracts the armature across an air-gap thus reducing the spring force applied to the disc pack. The brake is applied when the DC voltage is removed from the brake coil. Various structures and methodologies for reducing vibrations in the brake are also provided.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: March 26, 2019
    Assignee: PT TECH, LLC
    Inventors: Richard E. Cole, Jr., Timothy A. Clapp, David A. Farwell
  • Publication number: 20180023641
    Abstract: An electromagnetic-released, multi-disc, enclosed safety brake for primary use in offshore marine winch applications includes a stationary coil housing that encompasses springs that apply pressure to an armature, a pair of separator plates, three friction plates and a stationary endplate. The multi-disc brake is released by means of a DC voltage applied to the brake coil. The excited coil generates an electromagnetic force that attracts the armature across an air-gap thus reducing the spring force applied to the disc pack. The brake is applied when the DC voltage is removed from the brake coil. Various structures and methodologies for reducing vibrations in the brake are also provided.
    Type: Application
    Filed: January 28, 2016
    Publication date: January 25, 2018
    Inventors: Richard E. Cole, Jr., Timothy A. Clapp, David A. Farwell
  • Publication number: 20170363156
    Abstract: A self-contained clutch for diesel engines for off-highway implementation is provided. A stationary friction disc, pressure plate and endplate sandwich a pair of rotating separator discs. Attenuation of vibration damping of the rotator discs may be achieved by a centrifugal weight. A pulse-width-modulated DC motor or valve is employed in association with a hydraulic actuator to control pressure to the clutch piston. An RFID tag uniquely identifies the nature and parameters of the clutch itself and is associated with the clutch such that the controller can most efficiently operate the clutch. Heat is dissipated by an oil pump servicing the support bearings and/or by the integration of a centrifugal fan into the heat disc stack.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 21, 2017
    Inventors: Timothy A. Clapp, Richard E. Cole, David A. Farwell, Tyler A. Naumoff, David J. Morris
  • Patent number: 8474589
    Abstract: A compact universal fluid-actuated clutch employs a pair of tapered roller bearings between a cover plate and output shaft, the roller bearings serving to not only rotationally maintain the output shaft, but receive and transfer clutch reactionary forces therethrough. Lubrication to the tapered roller bearings serves to lubricate not only a thrust bearing through which the actuation forces are transferred, but also to lubricate the clutch, as well, in the embodiment of a wet clutch. Also provided is an output shaft brake assembly, which is also lubricated through the tapered roller bearings, and which is of a small compact nature, consisting of a piston rotatably secured to the end cover, and a rotor operatively attached to the output shaft. The invention substantially eliminates the need for rotary unions and rifle boring of the output shaft, and allows for adaptation of the shaft to direct or belt drive equipment connections.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: July 2, 2013
    Assignee: EBO Group, Inc.
    Inventor: Timothy A. Clapp
  • Patent number: 8418786
    Abstract: A selectively powered ambulatory stretcher chair has a bifurcated articulating base of free-wheeling casters at each of the corners thereof, with motor driven wheels on a transaxle interposed therebetween. Articulation of the bifurcated base causes deployment and retraction of the drive wheels to allow use of the stretcher chair in both a manual and power-driven mode, while ensuring stability in both. A u-shaped positionable bar is pivotally connected to a back of the stretcher chair and maintains a control box within a tight range of positions as the chair of the stretcher chair assembly translates between upright and horizontal positions. The back of the stretcher chair is of a radiolucent material, accommodating medical procedures in the stretcher chair in a broad range of positions.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: April 16, 2013
    Assignee: TransMotion Medical, Inc.
    Inventors: Timothy A. Clapp, Richard E. Cole, Jr., Zackary D. McKee, Robert E. Herchick, Michael E. Maske
  • Publication number: 20120024655
    Abstract: A compact universal fluid-actuated clutch employs a pair of tapered roller bearings between a cover plate and output shaft, the roller bearings serving to not only rotationally maintain the output shaft, but receive and transfer clutch reactionary forces therethrough. Lubrication to the tapered roller bearings serves to lubricate not only a thrust bearing through which the actuation forces are transferred, but also to lubricate the clutch, as well, in the embodiment of a wet clutch. Also provided is an output shaft brake assembly, which is also lubricated through the tapered roller bearings, and which is of a small compact nature, consisting of a piston rotatably secured to the end cover, and a rotor operatively attached to the output shaft. The invention substantially eliminates the need for rotary unions and rifle boring of the output shaft, and allows for adaptation of the shaft to direct or belt drive equipment connections.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 2, 2012
    Inventor: Timothy A. Clapp
  • Patent number: 8066619
    Abstract: A clutch control system is interposed between an engine and a piece of driven equipment. The clutch control system includes a clutch assembly with input and output speed sensors for providing signals corresponding to the shaft rotational speeds of the engine and the driven equipment, respectively. A pressure sensor is connected to the clutch assembly and provides an output signal corresponding to clutch pressure. A temperature sensor is also associated with the clutch assembly and provides a temperature signal corresponding to the operating temperature of the clutch assembly. Transducers of various types are also employed to sense operating conditions such as shock loads or the like. Also included is a machine control system connected to the driven equipment and an engine control module connected to the engine, both of which are interconnected through an SAE J1939 CAN to the clutch control unit.
    Type: Grant
    Filed: April 19, 2008
    Date of Patent: November 29, 2011
    Assignee: PT Tech, Inc
    Inventors: Robert E. Herchick, David C. Heidenrcich, Erik L. Olson, Joseph W. Guinter, David A. Peterman, Arthur F. Gouker, Timothy A. Clapp
  • Publication number: 20110272200
    Abstract: A selectively powered ambulatory stretcher chair has a bifurcated articulating base of free-wheeling casters at each of the corners thereof, with motor driven wheels on a transaxle interposed therebetween. Articulation of the bifurcated base causes deployment and retraction of the drive wheels to allow use of the stretcher chair in both a manual and power-driven mode, while ensuring stability in both. A u-shaped positionable bar is pivotally connected to a back of the stretcher chair and maintains a control box within a tight range of positions as the chair of the stretcher chair assembly translates between upright and horizontal positions. The back of the stretcher chair is of a radiolucent material, accommodating medical procedures in the stretcher chair in a broad range of positions.
    Type: Application
    Filed: May 6, 2010
    Publication date: November 10, 2011
    Inventors: Timothy A. Clapp, Richard E. Cole, JR., Zackary D. McKee, Robert E. Herchick, Michael E. Maske
  • Publication number: 20090264253
    Abstract: A clutch control system is interposed between an engine and a piece of driven equipment. The clutch control system includes a clutch assembly with input and output speed sensors for providing signals corresponding to the shaft rotational speeds of the engine and the driven equipment, respectively. A pressure sensor is connected to the clutch assembly and provides an output signal corresponding to clutch pressure. A temperature sensor is also associated with the clutch assembly and provides a temperature signal corresponding to the operating temperature of the clutch assembly. Transducers of various types are also employed to sense operating conditions such as shock loads or the like. Also included is a machine control system connected to the driven equipment and an engine control module connected to the engine, both of which are interconnected through an SAE J1939 CAN to the clutch control unit.
    Type: Application
    Filed: April 19, 2008
    Publication date: October 22, 2009
    Inventors: Robert E. Herchick, David C. Heidenrcich, Erik L. Olson, Joseph W. Guinter, David A. Peterman, Arthur F. Gouker, Timothy A. Clapp