Motive Fluid Does Not Contact Work But Induces Flow Of Another Fluid Patents (Class 173/60)
  • Patent number: 10357862
    Abstract: A pneumatically operated tool driver has a debris suction apparatus including a dust gathering assembly fastened to the front head of tool driver and surrounding the tool, a venturi element mounted on the tool driver, and an air diverting apparatus that uses pressurized air to establish an airflow through the venturi element to create a suction upstream of the venturi element that draws debris from the dust gathering assembly to a dust collection site. The air diverting apparatus obtains the pressurized air from an exhaust diverter that captures pressurized exhaust air expelled through the tool driver's exhaust port, and from a capillary tube coupled to the tool driver's inlet air port.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: July 23, 2019
    Assignee: G. A. W. INC.
    Inventor: Robert Arthur
  • Patent number: 10337167
    Abstract: A collection tank for use in a vacuum operated earth reduction system, the collection tank comprising a closed first end, an open second end defining a tank sealing flange and a body extending between the closed first end and the open second end. An internal chamber defined by the body, the closed first end and the open second end has a door coupled to the open second end and is configured to releasably seal the open second end. An automated door closer is coupled to a center of the door, wherein the automated door closer provides a closing force at the center of the door so that the closing force is equally distributed about a periphery of the door to seal the door against the tank sealing flange.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: July 2, 2019
    Assignee: McLaughlin Group, Inc.
    Inventor: Charles Robert Maybury, Jr.
  • Patent number: 10238252
    Abstract: A drill removal device is provided for use with a scratch generating tool having a stationary member and a scrap generating workpiece engaging member that is moveable with respect to the stationary member. The debris removal device includes a bracket having a stationary member receiving portion for coupling the bracket to the power tool stationary member. A vacuum receiving portion of the bracket is provided for coupling the bracket to a vacuum source, and a passageway portion is provided for placing the stationary portion in fluid communication with the vacuum source. A variable tube bellows is configured for placement adjacent to the workpiece engaging member. The bellows includes a plurality of bi-stable pleats that are moveable between and stationarily positionable in each of an expanded position and a compressed position for permitting the user to vary the length of the bellows between, and fixedly positioned the length of the bellows at a plurality of different lengths.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: March 26, 2019
    Inventor: Christopher Joseph Buczek
  • Patent number: 9937598
    Abstract: A cutting tool cover set to a cutting tool which includes a hollow shaft body and at least one insert attached to an end face of the shaft body and cuts by bringing the insert into contact with a work while rotating the shaft body. The cutting tool cover includes: a body portion fixed to a top end portion of the shaft body; and an extension portion extended outward from the circumferential edge of the body portion in the entire circumference of the top end portion of the body portion to cover the surface of the work.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 10, 2018
    Inventors: Hisayuki Oode, Shinya Matsuo, Manabu Saito, Morihiro Hideta, Koji Sato, Yasuhiro Inamasu, Shoujirou Touma
  • Patent number: 9816250
    Abstract: A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: November 14, 2017
    Assignee: McLaughlin Group, Inc.
    Inventors: Charles Robert Maybury, John William Gilman
  • Patent number: 9789549
    Abstract: A drilling end effector may include a motor operative to drive a drilling member, a housing surrounding the motor, and a vacuum shroud coupled to the housing and surrounding the drilling member, wherein the vacuum shroud has a variable length.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: October 17, 2017
    Assignee: The Boeing Company
    Inventors: Tuong Q. Nguyen, John W. Pringle, IV
  • Patent number: 9604297
    Abstract: The present invention relates to liquid dispensing system for a rotatable work tool (2), comprising a control valve (13), an inlet and outlet liquid guiding device (11, 15). The control valve (13) comprises a housing (18) with a rotatable drum part (19) arranged to rotate. The housing (18) comprises inlet and outlet tubes (21, 22) arranged to be connected to the liquid guiding devices (11, 15). The tubes (21, 11) have corresponding inlet and outlet openings (23) facing the drum part (19). The drum part (19) comprises a first seal (25) and a third seal (27), the seals (25, 27) running around the drum part (19). The third seal (27) has an extension (34) running partially along the first seal (25), such that a first and second volume (28, 29) are formed. Each opening (23, 24) is connected to one of the volumes, or both. At least one volume (29) enables fluid connection between the openings (23, 24) that is variable by means of the third seal (27) moving over one or more of the openings (23).
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: March 28, 2017
    Assignee: HUSQVARNA AB
    Inventors: Fredrik Karlsson, Hans Petersson
  • Patent number: 9393657
    Abstract: A fitting having a cover tube connected to one end and a pressure line in the fitting, connected to a rigid tube projecting from the fitting and through the cover tube. The method includes projecting a rigid tube in a masonry bore, and applying pressurized air to blow debris from the bore to be captured in a cover tube.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: July 19, 2016
    Inventor: Hadley H. Caneer
  • Patent number: 9157481
    Abstract: A clamping system for detachably connecting two parts, one part has a hollow shaft and the other part has a receiving portion for receiving the hollow shaft with a precise fit, comprising: a main body to be arranged concentrically in the receiving portion, extends into the hollow shaft when the two parts are joined to one another, and bears two clamping bodies, operable in a diametrically opposed manner between release and clamping positions, and comprising an ejector axially adjustable by a defined ejection stroke in a centric through-bore in the main body, the clamping bodies subject the one part to a pressing force in the clamping position, and in the release position subject the one part to an ejection force, the ejector formed from a body of revolution, which is detachably anchored directly in a centric through-bore in the main body with axial play corresponding to the ejection stroke.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: October 13, 2015
    Assignee: Guehring OHG
    Inventor: Klaus Matheis
  • Patent number: 4302185
    Abstract: A system for concurrently supplying a liquid and drive gas to a gas-driven tool includes a drive gas source and conduit means connecting the drive gas source to the tool. Exhaust conduit means connect the tool to exhaust sensor means. A liquid source is connected to the tool by liquid conduit means. Means for causing liquid to flow from the liquid source to the tool is activated by means responsive to pressure of over a predetermined value at the exahust gas sensor.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: November 24, 1981
    Inventor: Arthur L. Hall
  • Patent number: 3993355
    Abstract: A mining system for extraction of coal or the like from narrow seams has a conduit system for pneumatic conveyance of mined material. A leading section of apparatus comprises a cutter head assembly driven by an air motor which exhausts into the conduit system. The leading section includes further an anchoring means which is changeably mounted thereon to permit advance of the leading section and cutter head assembly, and ground contact means for pivoting of the cutter head from side-to-side.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: November 23, 1976
    Inventor: Kelly G. Cunningham