Patents Examined by Robert Mackey
  • Patent number: 4312464
    Abstract: This invention comprises a latchable swivel hook garment hanger in which the swivelling hook may be latched in any radial position relative to the hanger body and unlatched to swivel, repeatedly at will; it has a hanger body containing a bore for receiving, through its top end, the elongated shaft portion of the hook member, and, through its bottom end, a latching member, such as a wing bolt, set screw, et.,; the bore is interrupted by a window-like opening in the hanger body; the segment of the hook shaft coming within the window includes a means, such as a flattened portion alone, or a detent in combination with a washer, to limit axial movement of the hook shaft while permitting it to swivel freely. The latching member is axially movable within its bore segment to axially engage or disengage the hook shaft.
    Type: Grant
    Filed: May 28, 1980
    Date of Patent: January 26, 1982
    Inventor: Alfred A. Treiman
  • Patent number: 4309800
    Abstract: A felting needle having a wedge-like tip with an open double barb formed in the leading edge of the tip. The double barb includes a pair of opposed outwardly diverging fiber-engaging surfaces with precisely formed angles. One outwardly diverging barb angle extends to one side of the needle, and the other outwardly diverging barb angle is disposed symmetrically and diametrically opposite thereto. Unlike ordinary barbs formed in a lateral edge of a felting needle, the double-barb of the present invention allows fibers to slip off to either side of the needle and thus prevent fiber damage.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: January 12, 1982
    Assignee: Foster Needle Co.
    Inventor: Edson P. Foster
  • Patent number: 4309801
    Abstract: An improved method and apparatus for texturizing thermoplastic yarn. The process and apparatus are characterized by a unique control system which facilitates accumulatorless operation and which allows two or more yarns to be texturized at the same time and wound on the same winder spindle. The control system is adapted to sense relative high and low yarn tension and to control tension to control wound yarn length to ensure that equal lengths of each yarn are collected (wound) on the winder spindle without over tensioning the yarn and without intermediate yarn accumulation.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: January 12, 1982
    Assignee: Chevron Research
    Inventor: Philip C. Feffer
  • Patent number: 4308923
    Abstract: Disclosed herein is a device for orienting a drilling auger disposed on and powered by a vehicle defined by a lower frame member carried by the vehicle, an upper frame member pivoted to the lower frame member for rotation about an axis, and an auger supporting framework pivoted to the upper framework for rotation about a second axis orthogonal to the first axis in which the rotation is controlled by hydraulic cylinders extending between the lower and upper frame members, and between the upper frame member and the auger supporting framework, respectively. The auger itself is driven by a power take-off on the vehicle in a preferred form which in conjunction with the preceeding structure allows the auger to address the earth in which the hole is to be drilled in substantially any angle above the surface of the earth.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: January 5, 1982
    Inventor: Robert E. Gilbert
  • Patent number: 4308649
    Abstract: Apparatus to pattern brush pile fabric which has been pre-heated so that the pattern brushed into the pile fabric will remain as the fabric cools. An adjustable fabric pressure rod positions the fabric in a pre-determined position relative to the bristles of the rotating brush. To provide the desired pattern on the surface of the pile fabric, a plurality of movable reed members deflect the bristles of the rotating brush.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: January 5, 1982
    Assignee: Milliken Research Corporation
    Inventors: Michael W. Gilpatrick, Carroll L. Pack
  • Patent number: 4308981
    Abstract: A clip hanger for suspending trousers or skirts especially used in laundries. The clip hanger comprises an inverse V-shaped clip body having two resilient clamp arms, a resilient hook mounted on an upper hook mounting base of the clip body and a resilient loop which is disposed around the clamp arms so as to narrow an acute angle of the clamp arms when in used. With the simple narrowing operation, a desired clamping force is exerted between the clamping ends of the clamp arms without necessitating a metal spring means which a conventional clip hanger requires for clamping purposes.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: January 5, 1982
    Inventor: Shozo Miura
  • Patent number: 4307784
    Abstract: The improved shut-off apparatus for pneumatically driven tools includes an auxiliary shut-off valve located in the flow passageway. The valve is controlled by a control rod which extends through the air motor into engagement with a latching device. The latching device is held in the latched position with the valve open by a movable weighted control member. The movable weighted control member is responsive to inertia so that as the speed of the air motor decreases due to a torque load imposed thereon, the shaft slows causing the inertial movement of the weighted member to release the latching device permitting the auxiliary shut-off valve to close.
    Type: Grant
    Filed: January 17, 1979
    Date of Patent: December 29, 1981
    Assignee: Dresser Industries, Inc.
    Inventor: William S. Smith
  • Patent number: 4307497
    Abstract: A method is disclosed for the treatment of textile yarns of filamentary material, such as glass fiber yarns. The yarn passes through a fluid jet which includes a central chamber which is formed from a pair of interconnected and overlapping passageways. Each passageway includes one or more fluid inlets along its length to allow treating fluid to pass circumferentially around each passageway in a counterdirectional pattern. The textile yarn passes between the passageways in the chamber and the filaments in the yarn are entangled with each other to consolidate and round the yarn without a true or false twist being placed on the yarn. Depending upon the amount of tension in the yarn, the fluid pressure in the jet and the speed of the yarn through the jet, the degree of entanglement can be varied. Under low to zero tensions, texturized yarns and yarns having slubs thereon can be produced.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: December 29, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Warren W. Drummond
  • Patent number: 4306340
    Abstract: This invention relates to an improvement in an externally held cylindrical spreading means for tubular fabric, particularly for the treatment of the fabric with a fluid treating agent, with a central carrier for radially displaceable supports and segment-like guide elements carried by the supports, body means at each end of the central carrier, each of the body means being tapered in the longitudinal direction, and the guide elements extending in the longitudinal direction of the spreading means between the body means, the improvement comprising that the spreading means includes a pair of threaded sleeves mounted on opposite threads on the central carrier, radially-extending means with external magnetic pole means non-rotatably connected to the central carrier, and means for applying an external magnetic force on the magnetic pole means whereby the central carrier may be rotated.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: December 22, 1981
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Werner Strudel, Christian Strahm
  • Patent number: 4306341
    Abstract: This invention relates to an improvement in an externally held cylindrical spreading means for tubular fabric, particularly for the treatment of the fabric with a fluid treating agent, with a central carrier for radially displaceable supports and segment-like guide elements carried by the supports, body means at each end of the central carrier, each of the body means being tapered in the longitudinaL direction, and the guide elements extending in the longitudinal direction of the spreading means between the body means, the improvement comprising pneumatic drive means within the spreading means connected to sleeve means on the central carrier, the sleeve means being connected to the radially displaceable supports and being displaceable on the central carrier, compressed air junction means in at least one of the guide elements and having a back pressure valve means therein, and means connecting the compressed air junction means with the pneumatic drive means.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: December 22, 1981
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventor: Hans Rottensteiner
  • Patent number: 4305473
    Abstract: A power control device for a pneumatic motor includes a pressure air supply flow limiting means in the form of a flow restriction having a diverging, pressure recovering outlet. The device also comprises a load responsive pressure relief means which is located downstream of the flow restriction and which is arranged to gradually release pressure air from the motor into the atmosphere in response to decreasing load applied on the motor. The device is effective in reducing the motor power in response to decreasing load upon the motor. The disclosed motor is a hammer piston impact tool, and the motor load responsive pressure release means comprises the forward end of the motor cylinder and passages on a thrust sleeve which receives the shank of a chisel and which is slidingly received in the cylinder.
    Type: Grant
    Filed: October 3, 1978
    Date of Patent: December 15, 1981
    Assignee: Atlas Copco Aktiebolag
    Inventor: Per. A. L. Gidlund
  • Patent number: 4305472
    Abstract: Apparatus for recording and limiting the torque applied to a pipe by a set of power tongs, wherein the tongs are operated by a hydraulic fluid pumped through a feed line to a hydraulic motor in the tongs and then returned by a return line. The apparatus includes a hydraulic tension cell attached between the tongs and a fixed attachment whereby torque applied by the tongs causes hydraulic pressure in the tension cell proportional to the torque applied. The tension cell is hydraulically connected to a helical pressure sensor tube. An operating arm is attached to the pressure sensor tube such that hydraulic pressure in the hydraulic tension cell causes the operating arm to rotate in an amount proportional to the pressure and therefore the torque. The operating arm is cammingly engaged with a spring arm which in turn is engaged with an air valve.
    Type: Grant
    Filed: March 18, 1980
    Date of Patent: December 15, 1981
    Inventor: McKinley J. Brossette
  • Patent number: 4305185
    Abstract: The disclosure is directed to apparatus for processing of tubular knitted fabric, including an internal flat spreader and width-adjustable edge drives, typically used in connection with other processing apparatus, such as calendars, padding equipment, compressive shrinking stations, etc. The apparatus utilizes a pre-loaded, resiliently biased spreader frame which, within its operating limits, presses outwardly against adjustably movable, opposed edge drive rolls. The spreader frame, which is positioned internally of the moving fabric tube during processing operations, is capable of in-process width adjustments, without either stopping the processing line or damaging the fabric. Width adjustment of the internal spreader frame may be accomplished from a remote operator station. Moreover, the apparatus may incorporate edge-sensing means operative automatically to adjust the width of the spreader to maintain uniformity of width in the processed fabric.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: December 15, 1981
    Assignee: Samcoe Holding Corporation
    Inventor: Robert Frezza
  • Patent number: 4303130
    Abstract: A self-propelled all terrain drill unit having propulsion means for the chassis, a drilling mast mounted on the latter for movement between horizontal and vertical positions and a drilling head carried by the mast wherein all major functions are performed hydraulically, the hydraulic functions being divided into two groups; those of propelling the vehicle to a drilling site and operating the drill at the site provided by a variable displacement pump and those of adjusting the position of the machine at the site and aligning and positioning the drilling head provided by an independent pump.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: December 1, 1981
    Assignee: BOA Drilling Equipment, Inc.
    Inventor: Aaron Bonca
  • Patent number: 4301579
    Abstract: A cylindrical guide for varying the width of a bundle of continuous filaments has a surface in contact with the bundle that has an array of nonparallel grooves. The grooves converge until a minimum distance is reached on the guide surface and from thereon diverge to a maximum distance. With this arrangement of grooves it is possible to control the width of the bundle of filaments in a widening or narrowing manner by simply rotating the cylindrical guide one direction or the other until the desired width is reached.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: November 24, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gerardus Van den Hoven
  • Patent number: 4301578
    Abstract: In the stuffing of synthetic continuous filamentary threads in stuffer boxes, special value is to be placed on the thermal treatment and especially the cooling of the initially crimped filaments. The filaments in the configuration of a compact thread plug, which is formed in the stuffer box, can be wound on a rotatably driven drum in several helical windings, the last thread plug winding can then be disentangled again at the end of the drum, and the finished texturized thread drawn off. The disentangling of the thread plug and the drawing off of the thread is improved by the present invention through an application of axial and/or radial forces or pressures onto the last thread plug winding in the region of the disentangling point. Suitable mechanical and pneumatic devices are provided by the invention for this purpose.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: November 24, 1981
    Assignee: Barmag Barmer Maschinenfabrik AG
    Inventors: Peter Dammann, Hans-Peter Berger, Wilfried Mundelein, Manfred Bussmann, Horst Beifuss
  • Patent number: 4301577
    Abstract: A process for erecting the pile and increasing the yarn bulk of dyed or printed carpeting which has been bent, matted and crushed during processing. The carpeting is heated in a steam chamber to a temperature above the highest processing temperature and in the range of 170.degree.-212.degree. F., to override the yarn memory. A beater bar within the steam chamber then beats the carpet to reduce the bending, matting and crushing of the pile.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: November 24, 1981
    Assignee: Bigelow-Sanford, Inc.
    Inventors: Helmut C. Mueller, Harry G. Gallagher
  • Patent number: 4300641
    Abstract: A rotary power driver is provided which drives with a two-stage torque and speed control, wherein the initial driving is done at higher speed and lower torque, and a subsequent higher torque is automatically imposed with lower speed. The second stage is a selected pre-set stage, with provision for the selected torque built into the driver. The second stage is imposed on the drive shaft by a one-way clutch or ratchet drive.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: November 17, 1981
    Assignee: DeMag Aktiengesellschaft
    Inventor: Karl Kinkel
  • Patent number: 4299015
    Abstract: A process is provided for space dyeing synthetic yarn in which the synthetic yarn, such as polyester yarn, wound upon a yarn package, is first treated by immersing the ends of the package into a solution of at least one sublimatable ink, thereby dyeing the yarn located at the ends of the package but leaving the yarn at the center of the package undyed, and then at least two ends from at least two such packages are passed through otherwise conventional drawing and texturizing apparatus. Each yarn so fed is intermittently dyed and undyed along its length, the color strength near the dye boundaries being attenuated and muted due to sublimation of the inks and diffusion and migration of the dyes through the yarn ends and into the package. By utilizing at least two feed yarn packages in such process having significantly different diameters and different colored ends thereof, very highly random dyeing effects are achieved in a knitted or woven fabric produced from such yarns.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: November 10, 1981
    Inventors: Frederick Marcus, Richard Dikeman, Allan A. Wiggins, Jr.
  • Patent number: 4297772
    Abstract: A two-piece yarn bulking jet is automatically opened and closed for yarn stringup by means of a pneumatically operated piston connected to a rod which in turn passes through the jet body and is attached to the jet cover. The piston is powered by the same pressurized fluid supply used to supply the bulking fluid to the jet apparatus.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: November 3, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John S. Seney