By Wedge Or Cam Patents (Class 403/374.1)
  • Patent number: 6457895
    Abstract: The flush mount breakaway post coupler is a coupler for connecting a post to a ground anchor. The coupler has an upper section and a lower section. The upper section has a socket for receiving a post, a shear section, and an anchor attachment portion for attachment to the lower section. The shear section is hollow and cylindrical and has an groove defined about its exterior so that the wall of the shear section is thin, fracture of the coupler occurring around the annular groove. The lower section is an expansion anchor having a threaded bore for receiving a bolt, the lower section being placed in a tubular ground anchor, or a hole defined in the ground. The socket has a bottom wall, and a cylindrical bore extends through the shear section to a predetermined base in the anchor attachment portion. A bolt hole extends from the base of the bore through the anchor attachment section. A bolt connects the upper and lower sections so that the coupler is wedged into the tubular ground anchor as the bolt is tightened.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: October 1, 2002
    Inventor: Mark T. Salman
  • Patent number: 6447200
    Abstract: A connector having gripping teeth which are formed intrinsically with a first set of locking lugs which are in a parallel relationship with a second set of locking lugs, the first and second set of locking lugs being spaced apart with two parallel supporting posts disposed therebetween. The second set of locking lugs has a bore through an approximate center thereof and the first set of locking lugs is split in two portions to form a slit aligned with an axis of the central bore of the second set of locking lugs such that a screw or similar fastener can be inserted so as to open the slit for forcing the gripping teeth against a channel member wall surface.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: September 10, 2002
    Assignee: Linking Industries, LLC
    Inventor: C. Stuart Hungerford, III
  • Patent number: 6438913
    Abstract: The invention is a glazing panel wall system having unique and advantageous glazing clips. The clips, several different embodiments of which are described, serve to hold the glazing panels and frame member face covers in place. The system comprises the various glazing clips; interconnected frame members, each frame member having recesses adapted for containing glazing panels and a channel adapted for engaging the clips; and face covers which are placed over the front face of the frame members. The invention thus provides a convenient, time-saving, and very effective way of constructing a glazing panel wall.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: August 27, 2002
    Assignee: YKK Corporation of America
    Inventors: Masayoshi Ishikawa, Tsutomu Ito
  • Patent number: 6431786
    Abstract: An intermediate sleeve (30) to be rigidly connected to the end of the motor shaft (11) is provided, having an inner surface (32) of frusto-conical shape adapted to fit the frusto-conical surface (12) of the motor shaft (11), and a cylindrical outer surface (31), and having at least one rib (33), projecting radially from the cylindrical outer surface (31) and positioned to the side thereof; the end of the pump shaft (21) possesses an axial cavity (22) having a cylindrical surface (23) adapted to engage as an exact fit the outer surface (31) of the sleeve (30), and has at least one projecting axial element (25), arranged to lie axially alongside said rib (33) of the intermediate sleeve (30), and to interfere therewith during rotation.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: August 13, 2002
    Assignee: Annovi Reverberi S.p.A.
    Inventors: Fabrizio Fabbri, Maurizio Magri
  • Publication number: 20020095881
    Abstract: An end member is joined against axial displacement to a handrail by a lock member that is coupled to a mounting flange portion of the end member against axial movement and for rotation relative to the mounting flange portion. A locking cam portion of the lock member is received in an undercut mounting groove of the handrail and is configured to permit the lock member to be moved axially along the locking groove in an unlocked rotational position relative to the locking groove and to frictionally engage walls of the locking groove in a locked rotational position relative to the locking groove and thereby retain the end member against axial movement relative to the handrail.
    Type: Application
    Filed: May 24, 2001
    Publication date: July 25, 2002
    Inventor: Thomas A. Shreiner
  • Publication number: 20020098037
    Abstract: A locking device assembly to connect two sections of cable together. The locking device assembly has a body with two chambers with two wedge members that each have base portions that are each positioned on substantially opposite sides of the body in the chambers. Each wedge member and chamber can hold a cable therein and each cable can have tension place upon it without slippage. The cables can be easily removed by hitting the front end portions of the wedge members.
    Type: Application
    Filed: July 19, 2001
    Publication date: July 25, 2002
    Inventor: Peter Ouimet
  • Patent number: 6401935
    Abstract: There is provided a shale shaker having at least a base, a shaker screen, a basket, and a screen retainer for releasably mounting the shaker screen to the basket. The basket is mounted movably with respect to and on the base. The screen retainer has at least a cam surface and a tensioning device. The tensioning device has at least a bearing surface in contact with the cam surface, a spring responsive to the bearing surface, and at least one screen contact surface for engaging the shaker screen when the spring is placed in compression by the exertion of force by the cam surface on the bearing surface.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 11, 2002
    Inventor: Michael D. Wiseman
  • Publication number: 20020061224
    Abstract: The present invention relates to improvements in drill slip assemblies for use in holding a drill pipe or other tubular member in a vertical position above or within a wellbore. The invention comprises a plurality of slip segments assembled in a slip bowl, each segment containing a plurality of dies which grip the tubular member to prevent any axial displacement. The invention provides at least three improvements over prior art drill slips. First, the outer surface of the slip segment assembly, particularly the lower nose region, is fully supported by the inner surface of the slip bowl such that no portion of the slip segment assembly extends below the bowl. Second, the slip segments are fabricated from forged steel, making them more durable and able to carry higher loads. Third, each die in the lowermost set of hardened dies is fabricated having a rounded bottom end with a tapered profile to complement the rounded bottom of the axial grooves cut into each slip segment.
    Type: Application
    Filed: January 8, 2002
    Publication date: May 23, 2002
    Inventors: Jerry P. Allamon, Jack E. Miller
  • Patent number: 6386518
    Abstract: An end member is joined against axial displacement to a handrail by a lock member that is coupled to a mounting flange portion of the end member against axial movement and for rotation relative to the mounting flange portion. A locking cam portion of the lock member is received in an under cut mounting groove of the handrail and is configured to permit the lock member to be moved axially along the locking groove in an unlocked rotational position relative to the locking groove and to frictionally engage walls of the locking groove in a locked rotational position relative to the locking groove and thereby retain the end member against axial movement relative to the handrail.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: May 14, 2002
    Assignee: Construction Specialties, Inc.
    Inventor: Thomas A. Shreiner
  • Publication number: 20020051679
    Abstract: Method of connecting or joining at least two panels in a piece of furniture and a piece of furniture made thereby. The method includes providing a first panel, wherein the first panel includes a surface having at least one recess, providing a second panel, wherein the second panel includes a surface having at least one recess, arranging the surface of the first panel adjacent the surface of the second panel, and connecting the first panel to the second panel using at least one sphere. The at least one sphere projects into the at least one recess of each of the first and the second panels.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 2, 2002
    Inventor: Mario Bissegger
  • Patent number: 6375383
    Abstract: An attachment device for arresting a machine member having a substantially cylindrical bore on a cylindrical shaft includes first and second sleeve members adapted to be positioned in a space between the outer surface of the shaft and the inner surface of the bore in the machine member. The two sleeve members have mating, cooperating taper surfaces in the form of a plurality of saw-tooth-shaped axially tapering sections that face one another. At least one of the sleeve members is movable for displacement relative to the other sleeve member to change the radial size of at least one of the sleeve members. The end edge of the first sleeve member projects axially beyond an adjacent end edge of the second sleeve member for receiving an external pushing force causing the first element to be displaced relative to the second element to cause the relative displacement of the sleeve members. The opposite end edge of the second sleeve members engages a stop that may be formed on the machine member.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: April 23, 2002
    Assignee: SKF Mekan AB
    Inventors: Sture Östling, Uno Axelsson
  • Patent number: 6371685
    Abstract: A method of repairing a crack in a boiling water reactor shroud includes forming a pair of slots in the shroud on opposite sides of the crack in angled relation to one another so that the lateral spacing between the slots increases in a direction parallel to the crack, lowering a wedge clamp with laterally spaced slides into the annular space between the core shroud and the reactor vessel, positioning the slides in the slots, and moving the clamp in the direction of increasing lateral spacing between the slots to an operational position where the clamp prevents unacceptable opening of the crack during reactor operation by providing a structural load path which transmits structural loads across the crack. The slots are preferably configured to mate cooperatively in a manner which prevents the clamp from moving in a radially outward direction relative to the shroud once the clamp has been installed.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: April 16, 2002
    Assignee: MPR Associates, Inc.
    Inventors: Sterling J. Weems, William E. Sylvester
  • Patent number: 6357960
    Abstract: A Non-Protrusive Expandable Clamping Device fastens together two bodies when conventional fastening devices cannot be used because of the unique space constraints and/or the shape of the joining surfaces of the bodies. The expandable clamping device, which has two tenons on opposite sides of its housing, can be slid into the bodies that have corresponding mortises on their joining surfaces to accommodate the tenons. The clamping device connects the bodies in one linear plane using motion in an orthogonal plane. When the clamping process is completed, facilitated by the rotational motion of a threaded bolt within the cavity inside the housing, what results is a joint that is strong in all directions as well as flush and airtight between the surfaces when an appropriate gasket or O-ring is utilized. Such a joint ensures proper alignment of the bodies while providing fixity in six degrees of freedom.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 19, 2002
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Charles S. Cornelius, David A. Gibson, Bob R. Hurst
  • Patent number: 6357959
    Abstract: The present invention relates to the connection of removable and replaceable equipment to a structural member. The invention is particularly advantageous in environments where there is vibration or movement, such as with a tractor-trailers, railroad freight containers, airplane or the like. The present invention provides a triple acting wedge boltless connector system for connecting a mounting member to a structural member. The boltless connector system of the present invention tends to tighten and more securely engage when subject to vibration or movement. Consequently, vibration does not loosen the boltless connection but instead makes the connection more secure. Thus, there is no need for threaded fasteners and washers. The present invention also facilitates easy removal of the equipment from the main structure.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: March 19, 2002
    Assignee: TTX Company
    Inventor: William R. Halliar
  • Publication number: 20010053309
    Abstract: The present invention relates to improvements in drill slip assemblies for use in holding a drill pipe or other tubular member in a vertical position above or within a wellbore. The invention comprises a plurality of slip segments assembled in a slip bowl, each segment containing a plurality of dies which grip the tubular member to prevent any axial displacement. The invention provides at least three improvements over prior art drill slips. First, the outer surface of the slip segment assembly, particularly the lower nose region, is fully supported by the inner surface of the slip bowl such that no portion of the slip segment assembly extends below the bowl. Second, the slip segments are fabricated from forged steel, making them more durable and able to carry higher loads. Third, each die in the lowermost set of hardened dies is fabricated having a rounded bottom end with a tapered profile to complement the rounded bottom of the axial grooves cut into each slip segment.
    Type: Application
    Filed: May 23, 2001
    Publication date: December 20, 2001
    Inventors: Jerry P. Allamon, Jack E. Miller
  • Patent number: 6328499
    Abstract: A screwed connection comprises at least one rod end (10, 12) with an external thread (16) and a threaded sleeve (18) with an internal thread (20). The threaded sleeve (18) is screwed with axial play on to the rod end (10, 12). A cotter (26) is driven through a lateral opening (30) in the threaded sleeve (18) in such a way that it bears on the threaded sleeve (18) and on the end face (22, 24) of the rod end (10, 12) in order to press the external and internal threads (16, 20) axially against each other. A screwed connection of this type is particularly suitable for the production of sleeve connections and end anchorages in the case of reinforcing rods with a rolled-on thread.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: December 11, 2001
    Assignee: Ares S.A.
    Inventors: Henri Reding, Gallus Rehm
  • Publication number: 20010046412
    Abstract: The invention relates to the provision of a mechanical joint, a method for forming the same and items made incorporating the joint. The joint includes a first member with an opening which is in an initially sufficiently wide condition to receive therein a second member, insert or former. When the same is positioned correctly the opening is moved to a condition whereby the insert, second member or former is trapped in the opening. By this method the second and first members are connected either directly or via connection to the insert or former. Items including a plurality of said joints at the required locations can be made which are strong and sturdy and with relatively straightforward manufacturing requirements.
    Type: Application
    Filed: May 24, 2001
    Publication date: November 29, 2001
    Applicant: Stage One Creative Service, Ltd.
    Inventor: Mark Nicholas Johnson
  • Patent number: 6309135
    Abstract: A clamp includes an object clamping portion having a tubular shape defining an object receiving passageway therethrough, and a clamp receiving passageway transverse to the object receiving passageway and in communication therewith. An object clamp is received in the clamp receiving passageway, and may include a pair of cooperating clamp members defining an imaginary cylinder and a recess therein for the object. Each clamp member may also have at least one fastener receiving passageway therein offset a predetermined distance from an axis defined by the imaginary cylinder. The object clamp may also include at least one fastener extending between corresponding fastener receiving passageways of the pair of clamp members for urging the clamp members together to engage the object. The at least one fastener may be a plurality of fasteners. The fastener receiving passageways may also be canted at a predetermined angle from parallel to the axis of the imaginary cylinder.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: October 30, 2001
    Assignee: L.H. Thomson Company, Inc.
    Inventors: Loronzo H. Thomson, Brian Thomson, Mark P. McJunkin
  • Patent number: 6305873
    Abstract: Structural members 1, 21 are connected by way of a connecting rod 3 which is attached to one structural member 1 and projects outward from connecting surface 2 of structural member 1 in the direction of other structural member 21, and a connector 23 which is attached to other structural member 21 and has a plurality of wedges 25 which engage with connecting rod 3 stopping it so that it cannot slip out. Connecting rod 3 is attached so as to be moveable in a direction parallel to connecting surface 2.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: October 23, 2001
    Assignees: Obayashi Corporation, Ishikawajima Construction Materials, Co., Ltd.
    Inventors: Eiji Tauchi, Akihiko Nakano, Kenta Matsubara, Hiroki Someya, Shuuichi Nishimura, Susumu Okayama, Toshio Kobayashi
  • Patent number: 6276880
    Abstract: A tool interconnect structure includes a spindle adapter, a rotary cutting tool, and a lock mechanism securing the rotary cutting tool to the spindle adaptor. The spindle adapter has a face and a short hollow tapered shank at the face. The rotary cutting tool has a face for engaging the spindle adaptor face and a tapered recess at the face for cooperating with the tapered shank. The lock mechanism includes a first retention stud secured within the tapered recess, a second retention stud secured within the tapered shank, first and second lock elements located within the hollow tapered shank and on opposite sides of the retention lugs, and a universal screw extending through the lock elements for selectively interconnecting the locking elements with the first and second retention studs.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: August 21, 2001
    Assignee: Master Tool Corporation
    Inventors: John Cirino, Richard Waiwood
  • Publication number: 20010014252
    Abstract: An intermediate sleeve (30) to be rigidly connected to the end of the motor shaft (11) is provided, having an inner surface (32) of frusto-conical shape adapted to fit the frusto-conical surface (12) of the motor shaft (11), and a cylindrical outer surface (31), and having at least one rib (33), projecting radially from the cylindrical outer surface (31) and positioned to the side thereof; the end of the pump shaft (21) possesses an axial cavity (22) having a cylindrical surface (23) adapted to engage as an exact fit the outer surface (31) of the sleeve (30), and has at least one projecting axial element (25), arranged to lie axially alongside said rib (33) of the intermediate sleeve (30), and to interfere therewith during rotation.
    Type: Application
    Filed: February 14, 2001
    Publication date: August 16, 2001
    Applicant: ANNOVI REVERBERI S.P.A.
    Inventors: Fabrizio Fabbri, Maurizio Magri
  • Patent number: 6234709
    Abstract: An improved anchor for a post-tension system having an anchor body with an internal wedge-receiving cavity. The cavity has a first portion of constantly diminishing diameter extending inwardly from one end of the anchor body. The first portion has an angle of taper with respect to a center line of the cavity. The cavity has a second portion extending inwardly from an opposite end of the anchor body. The first portion and the second portion are coaxial and communicate with each other. The second portion has an angle of taper which is less than the first portion. The first and second portions are cast with the anchor body. The angle of taper of the second portion is less than seven degrees or a negative angle with respect to the center line. The second portion of the cavity has a radiused edge curving outwardly from the cavity to the opposite end of the anchor body. The radiused edge is flush with the second portion of the cavity.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: May 22, 2001
    Inventor: Felix L. Sorkin
  • Patent number: 6224451
    Abstract: An assembling structure for main wing of a model airplane. The main wing is composed of a left wing and a right wing. The mating faces of the left and right wings are disposed with complementary engaging seat and engaging block which are mated with each other and tightened by a conic screw. Therefore, the left wing and the right wing can be quickly firmly assembled to form the main wing. The screw can be easily untightened to quickly disassemble the left wing from the right wing for easy carriage or storage.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: May 1, 2001
    Assignee: Thunder Tiger Corp.
    Inventor: Aling Lai
  • Patent number: 6193433
    Abstract: An adjusting device for a push-pull rod (1) such as is used in motor vehicles between the gearshift lever and the tranmission. To achieve continuous length compensation, the invention uses a spring (4) to directly or indirectly effect clamping between the push-pull rod (1) and the housing of the adjusting device or a connector (6).
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: February 27, 2001
    Assignee: Kuster & Co. GmbH
    Inventors: Carmelo Gutierrez, Reiner Moritz, Willi Henrich
  • Patent number: 6179260
    Abstract: A coupling bracket for interconnecting an IV stand with a patient transport device includes a base having an attachment portion for connecting the coupling bracket to the transport device. An extension arm laterally projects from the base and terminates at an IV stand receiver portion that receives and positively retains an IV pole. Redundant IV pole retaining features are provided to eliminate risk of unwanted separation from the coupling bracket. In addition, pivotally collapsing and telescopically collapsing brackets are disclosed for improved storage of the coupling bracket on a patient transport device. The coupling bracket allows simultaneous movement of an IV stand and a patient transport device.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: January 30, 2001
    Inventor: N. Sean Ohanian
  • Patent number: 6179512
    Abstract: A collet nut has a nut member for threaded engagement with threads on a collet holder. A sleeve member is rotationally coupled to the nut member in a first tightening mode of the collet nut. An annular ring is rotationally coupled to the sleeve member and rotationally coupled to the nut member in the first tightening mode. Facing ramped bearing surfaces are defined between opposing faces of the annular ring and the nut member and bearing devices, such as balls, are disposed between the opposite faces. In the first tightening mode, the nut member and the annular ring rotate as a unit. In a second tightening mode, the annular ring rotates relative to the nut member so that opposing high sections of the ramped bearing surfaces are brought rotationally closer thereby forcing the annular ring axially away from the nut member which imparts an additional axial force to a collet engaging member of the collet nut.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: January 30, 2001
    Assignee: Power Tool Holders Incorporated
    Inventors: Stephen E. Gibson, William H. Aultman
  • Patent number: 6176051
    Abstract: A splice chuck having a body with a first end and a second end and a passage extending therethrough, a first collar received within the first end of the body and having a tapered interior, a second collar received within the second end of the body and having a tapered interior, a first wedge received within the tapered interior of the first collar, a second wedge received within the tapered interior of the second collar, a cap member having a surface abutting an end of the first wedge within the passageway of the body, and a resilient member having one end exerting a compressive force onto the second wedge and an opposite end exerting a compressive force onto the cap member. The cap member includes a tubular section having an interior area and an annular section extending radially outwardly from an end of the tubular section. A cover extends over the opposite end of the tubular section. The annular surface contacts an end of the first wedge.
    Type: Grant
    Filed: May 23, 1999
    Date of Patent: January 23, 2001
    Inventor: Felix L. Sorkin