Having Percussion Or Explosive Operator Patents (Class 29/254)
  • Patent number: 4443922
    Abstract: A tool for extracting an object from an assembled arrangement, for example, a low and reverse gear clutch housing from a planetary gear arrangement. The tool is made of an outer cylindical hollow member and an inner cylindrical hollow member telescopingly arranged in the outer cylindrical member such that the outer cylindrical member is telescopingly movable relative to the inner cylindrical member. Elongated legs extend from the outer surface of the outer cylinder over the outer surface of the inner cylinder, and each leg is made of a flexible material and includes a cam at the free end thereof. A stop consisting of three fins is disposed inwardly of the inner end of the inner cylindrical member.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: April 24, 1984
    Inventor: Francois Deland
  • Patent number: 4433463
    Abstract: A flat strip of metal formed as an expandible wedge having an inside triangular space bounded by jaws that correspond to the beveled sides of the wedge and a rear portion that corresponds to the thick end of the wedge opposite from its apex. The apex ends of the jaws are sharpened. A shaft extends through a hole in the rear portion of the wedge and has an eccentric inside of the triangular space. The shaft has a projection that is larger than the hole and can be reciprocated for the projection to drive the wedge and can be turned for the eccentric to spread the jaws.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: February 28, 1984
    Assignee: William Diedrich
    Inventor: Alvin J. DuVal
  • Patent number: 4387697
    Abstract: An arrow point puller is provided having a shaft member, an anvil member at one end of the shaft member, and an arrow point connecting portion at the other end for connection to an arrow point embedded in a tree or the like. A hammer member is detachably connected to one end of the shaft member for slideable movement along the shaft member to impart longitudinal hammer blows to the anvil member thereby linearly applying withdrawal force to an embedded point to withdraw the point without applying bending or twisting moment to either the embedded arrow point or the arrow point puller assembly. The subject arrow point puller also includes apparatus for attaching it to an archery bow for use as a stabilizer.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: June 14, 1983
    Inventor: J. Douglas Duke
  • Patent number: 4335493
    Abstract: An extractor for in situ removal of stump cutting teeth from a cutting wheel. The extractor includes a clamping device having a c-shaped frame with an elongated base member especially adapted to receive and then retain a downwardly stepped land disposed on a head portion of a cutting tooth. The clamping device is mounted on a slide hammer which when activated exerts a sharp pulling force on the head portion of the tooth to efficiently remove the tooth from the cutting wheel without distorting the original shape of the tooth.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: June 22, 1982
    Inventors: Norman E. Shivers, Jr., David E. Shivers, Paul N. Shivers
  • Patent number: 4330918
    Abstract: A method and apparatus for containing an annular body of fluid about a sleeve spanning the abutting ends of pipe lengths, and firing a charge of propellant, such as fast burning smokeless powder, in the liquid so as to radially shrink the sleeve into sealing engagement with the pipe lengths. If desired, the pipe lengths can be internally supported to avoid the possibility of collapse. Hard annular elements may be interposed between the sleeve and the pipe length ends to produce better mechanical locking.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: May 25, 1982
    Assignee: Akzona Incorporated
    Inventor: Hugh E. Whitted, III
  • Patent number: 4329766
    Abstract: A tool for installing scarifier teeth in a hole in a socket attached to a drum, as by using an identical pin and air hammer as can be used for removing the teeth through an aperture at the rear of the socket. The tool has a circular hole with an inner bevel at an angle of not less than 321/2.degree. but preferably 35.degree. to the center line of the hole, while this bevel engages an outer bevel of a body of the tooth adjacent a shoulder to which weld metal attaches a tip of relatively hard metal to the body, or a flare or skirt of the body adjacent a stem of the tooth. The aforesaid holes in the body may be of different length and different diameter, depending on the distance from the point of the tip to the bevel or the flare or skirt. The opposite end of the tool is provided with a hole to receive a pin which may be impacted by an air hammer, while a shim may wedge the pin in this hole to prevent the tool from flying off the pin if the air hammer is accidentally triggered.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: May 18, 1982
    Inventors: James F. Leonard, John Lane
  • Patent number: 4307635
    Abstract: An adapter for and in combination with a plier-type toggle locking wrench having an elongated handle with a fixed gripping jaw at one end, an opposing gripping jaw pivotally mounted on the handle, a resilient device urging the pivoted jaw away from the fixed jaw and a toggle mechanism for moving the pivoted jaw toward the fixed jaw, the toggle mechanism including a stub lever variably positioned by a coacting screw operator to effect fine adjustment of the jaws with respect to, and for over-center locking thereof on, the work, the screw operator being threaded into the free end of the handle opposite the fixed jaw, the adapter comprising a replacement screw operator having an externally-threaded portion to be received in the handle and a head portion having an internally-threaded passage adapted to receive a threaded stem of an accessory attachment such as a lifting eyebolt or a impact tool device.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: December 29, 1981
    Inventor: Ralph F. Genova
  • Patent number: 4283827
    Abstract: An improved tool construction for removing spindles from axle shafts by use of a slide hammer which exerts an axial pull on the spindle to dislodge it from an axle housing. The tool is a section of cylindrical thick-wall tubing or pipe which forms a housing, one end of which is open and the other end having an end wall attached thereto. A circular opening is formed in the end wall and is concentric to the cylindrical tubing. A pair of bolt-receiving lugs are mounted at diametrically opposite locations on the tubing at the open end thereof. The outer end of a spindle is inserted through the opening formed in the end wall of the housing and the spindle nuts are reinstalled on the spindle and are adapted to abuttingly engage the inside surface of the housing end wall. A plate is attached to one end of the slide hammer and is mounted on the open end of the housing by a pair of bolts engaged in the housing lugs.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: August 18, 1981
    Inventor: Oliver R. Abel
  • Patent number: 4265008
    Abstract: A tool engageable in a driving device is used for inserting and setting self-drilling dowels of the type consisting of a drill member and a spreader member. The tool is formed of an integral transmission member and plunger and an engaging member laterally encircling the plunger. The transmission member-plunger is axially displaceable relative to the engaging member. Percussive and rotative forces generated in the driving device are transferred into the transmission member-plunger. Projections are formed on the transmission member and engage surfaces on the engaging member for selectively transmitting one or both of the percussive and rotative forces to the drill member. Further, by axially displacing the transmission member-plunger relative to the engaging member, the spreader member can be driven into the drill member for setting or anchoring it within the borehole formed in the receiving material by the drill member.
    Type: Grant
    Filed: November 27, 1979
    Date of Patent: May 5, 1981
    Assignee: Hilti Aktiengesellschaft
    Inventors: Wolfgang Lippacher, Gerhard Teger
  • Patent number: 4244092
    Abstract: A shock wave transmitted through the fluid to the piston of hydraulic force apparatus provides additive shock force to steady hydraulic force.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: January 13, 1981
    Inventor: Andrew M. Riddles
  • Patent number: 4229870
    Abstract: A freeze plug installation tool adapted to be driven by a pneumatic driver is provided, preferably in kit form having a driver section which chucks into a pneumatic driver, one or several extensions shafts connectable to the driving section, and several freeze plug carrying heads which carry freeze plugs at various angles, so that by utilizing the kit in its various permutations numerous different combinations are provided which accomodate varying freeze plug installation situations involving hard to reach installation points.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: October 28, 1980
    Inventor: Ernest L. Tate
  • Patent number: 4205697
    Abstract: A method and a device for interrupting or reducing a media flow through a tubular pipe, involving removal of two opposed circumferential wall portions of the tubular pipe by means of two mainly parallel pistons, thereafter moving a third piston mainly mutually perpendicularly to the direction of travel for the pistons parallel piston and the length axis of the tubular pipe to a position mainly extending through the parallel pistons, the tubular pipe and the opposed openings of same, the third piston means being arranged with expanding devices, which, after completed movement of the third piston, are expanded to reduce, or interrupt, the internal cross-sectional area of the tubular pipe.
    Type: Grant
    Filed: May 16, 1978
    Date of Patent: June 3, 1980
    Inventor: Sven R. V. Gebelius
  • Patent number: 4182016
    Abstract: An elongated approximately C-shaped frame with a handle portion above an elongated hand hole has downwardly-projecting arms depending from its forward and rearward ends. The forward arm is bifurcated by being keyhole-slotted vertically into a pair of laterally-spaced L-shaped fingers which straddle the spike and the tubular spacer surrounding it within the gutter. The rearward depending arm is provided with an impact abutment for receiving hammer blows during use. A strengthening rib extending along the body between the depending portions imparts rigidity to the frame. In the first stage of its use, the forward depending arm is moved over the top of the gutter and dropped around the tubular spacer, then pulled toward the user until the flat ends of the fingers engage the inner surface of the outer gutter wall directly beneath the spike. A hammer blow on the abutment on the rearward arm pulls spike, spacer and gutter bodily a short distance away from the building wall to which they are attached.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: January 8, 1980
    Inventor: Douglas G. Break
  • Patent number: 4150469
    Abstract: A novel tool and method for extracting arrowheads from stumps, trees and the like using a linearly slideable housing or hammer mounted on a shaft which is attached to the arrowhead is described. In particular, the tool is provided with a retaining means to hold the shaft in the housing to prevent accidental movement and thus noise in use in the field. The tool preferably has a round shaft which is rotatable in an extended position in the housing which facilitates arrowhead extraction during linear movement and which in its retracted position in the housing engages a locking means which holds the shaft from rotational movement to permit threading of the shaft onto and off from the arrowhead by rotating the housing.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: April 24, 1979
    Assignee: Tomar Corporation
    Inventor: Anthony J. Hoggard
  • Patent number: 4125927
    Abstract: A tool for pulling an arrowhead out of, e.g., a tree trunk in which it is embedded comprises a flexible cable threaded at one end to screw into the shank of the arrowhead and a weight to bring a withdrawal impact force to bear at the free end of the cable. The weight may be affixed to the end of the cable or may be provided with a hole through which the weight may be guided along the cable for impact engagement with a stop on the end of the cable. The weight may be used for other purposes, such as holding the arrowhead for sharpening, straightening bent arrow shafts, and other purposes.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: November 21, 1978
    Inventor: James L. Geary
  • Patent number: 4120082
    Abstract: A kit for servicing a constant velocity drive shaft, particularly of the type found on General Motors automobiles. A first tool safely removes bearings held by a nylon ring from the yoke without damaging the yoke and includes a stud support member with yoke supports extending upwardly therefrom to engage the yoke, a pair of rods extending upwardly outside the yoke supports and through a top member to threadingly engage nuts for applying force to the yoke. A bushing receiver is mounted on the top member to receive the bearing as it is forced from the yoke. A second tool has a free swinging center for gripping the bearing after it has been pushed out a distance by the first tool. A third tool holds the cross and yoke in alignment during reassembly.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: October 17, 1978
    Inventor: William L. Bond
  • Patent number: 4054032
    Abstract: A pin puller comprising a piston having a pull shaft extending from a cylinder in which the piston is slidable, is actuated by an explosive charge which, when ignited, develops a pressurized gas that is directed, through a transfer tube, into a chamber extending through the piston and into the piston shaft, from which it is directed outwardly through a port in the shaft into a sealed space behind the piston, to move the piston in a direction to exert a pull upon the shaft and a pull-actuated device connected thereto. The piston slidably receives the transfer tube and is sealed thereto to prevent short-circuit escape of the pressurized gas to the leading side of the piston. An electric circuit is provided for igniting the explosive charge when energized.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: October 18, 1977
    Assignee: Networks Electronic Corporation
    Inventor: Mihai D. Patrichi
  • Patent number: 4043020
    Abstract: A novel tool and method for extracting arrowheads from stumps, trees and the like using a linearly slideable housing or hammer mounted on a shaft which is attached to the arrowhead is described. In particular, the tool is provided with a retaining means to hold the shaft in the housing to prevent accidental movement and thus noise in use in the field. The tool preferably has a round shaft which is rotatable in an extended position in the housing which facilitates arrowhead extraction during linear movement and which in its retracted position in the housing engages a locking means which holds the shaft from rotational movement to permit threading of the shaft onto and off from the arrowhead by rotating the housing.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: August 23, 1977
    Assignee: Tomar Corporation
    Inventor: Anthony J. Hoggard
  • Patent number: 4003119
    Abstract: Disclosed is a gear or sleeve puller having a slide hammer which serves to function as a means of adjusting the gripping jaws in areas of limited access. The slide hammer device is equipped with adjusting collar engaging dogs whereby the operator may extend his reach of the adjusting collar. With the dogs engaged the operator merely rotates the slide hammer to rotate the adjusting collar and thereby accomplish adjustment of the engaging jaws. The slide hammer may then be manipulated in the conventional manner to remove a sleeve or similar devices.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: January 18, 1977
    Assignee: Ingersoll-Rand Company
    Inventor: Melvin Dong Hugh
  • Patent number: 3994057
    Abstract: An impact tool is used to apply an impact blow to the underside of a portion of a roof which has been partly cut away, wherein the portion of the roof is removed for the installation of a dormer. The impact tool consists of an elongated hollow handle formed from a plurality of sections, wherein the sections permit length adjustment of the handle. A heavy weight element communicates with an upper free end of a top section and a rubber cushion element communicates with a bottom end of a bottom section.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: November 30, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventors: Frank Montgoris, Rudolph Powers
  • Patent number: 3956815
    Abstract: An improved tool is disclosed for joining the adjacent ends of pipes, conduits, and like tubular members through the use of explosively propelled swaging members. The tool includes a jacket assembly defining a closed chamber having a die at one end thereof and a die assembly which is received in the chamber. Both the die assembly and jacket assembly are substantially cylindrical to encompass end portions of the tubular members to be joined. The masses of the die assembly and of the jacket assembly are substantially equal so that, when the explosive propellant is ignited, they travel at substantially equal speeds in opposite directions with the die faces travelling towards one another to effect a swaging of a sleeve connector on the respective ends of the tubular members or bell configuration of one member onto a straight end of the adjacent member.
    Type: Grant
    Filed: May 6, 1975
    Date of Patent: May 18, 1976
    Assignee: AMP Incorporated
    Inventors: Harry Milton Capper, William Franklin Broske
  • Patent number: 3931726
    Abstract: This invention relates to a device, actuated by a propellant, for crimping heavy-walled terminals about large size electrical wire.
    Type: Grant
    Filed: January 21, 1975
    Date of Patent: January 13, 1976
    Assignee: AMP Incorporated
    Inventor: Daniel Baker Grubb