Patents Represented by Law Firm Hauke and Patalidis
  • Die and punch assembly for compacting powder material
    Patent number: 4347051
    Abstract: A unitary punch and die assembly for tooling a powder material compacting apparatus, or press, the assembly comprising a die plate mounted in the press table, which removably holds a die bushing clamped in position by a retainer collet provided with a peripheral thread and an internal thread. The retainer collet has an internal shoulder engaging a shoulder at the base of the die bushing, and a clamping ring threads on the internal thread of the collet for holding the die bushing in position within the collet. The peripheral thread of the collet engages the corresponding internal thread of a die spacer on which the die plate is mounted. By means of the retainer collet and the clamping ring, the die bushing surface may be adjusted flush with the surface of the die plate, without requiring grinding or lapping of the die bushing after assembly of the die bushing in the die plate.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: August 31, 1982
    Assignee: PTX-Dentronix, Inc.
    Inventor: Raymond P. DeSantis
  • Hemispherical ball and socket joint
    Patent number: 4347014
    Abstract: A knuckle or swivel joint of the half-ball and socket type comprising a stud terminating in an enlarged diameter half-ball member disposed in the socket member and having a hemispherical recess engaged by the hemispherical convex surface of a retainer bearing member disposed in or, alternatively, made integral with the socket member. The retainer bearing member or, alternatively, a segment of the socket internal surface engaged with the half-ball peripheral surface is elastically pre-loaded in an appropriate direction which causes firm engagement of the diverse bearing surfaces in mutual contact, thus, among others, compensating for wear. The knuckle or swivel joint assembly of the invention is capable of transmitting substantial loads within a wide range of angular variations between the stud and the shank, or other member, rigidly connected to the socket.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: August 31, 1982
    Assignee: Gulf & Western Manufacturing Company
    Inventor: Joseph E. Smith
  • Method and apparatus for electrode tool wear compensation
    Patent number: 4345131
    Abstract: A method and apparatus for compensating for the wear of an electrode tool during machining by EDM of an electrode workpiece by the electrode tool. During penetration of the electrode tool into the electrode workpiece, relative displacement of the electrodes is stopped as soon as it reaches a predetermined reference position corresponding for example to a machining depth limit data entered in a control buffer memory. The reference position data is corrected as a function of the actual wear of the electrode tool which is measured by comparing the positions taken by the electrode tool when one of its active surfaces reaches the same reference position before and after a machining pass. The correction of the reference position data may be obtained either by successive approximations, or by a single calculation step effected after the first machining pass.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: August 17, 1982
    Assignee: Ateliers des Charmilles, S.A.
    Inventors: Georges Semon, Alain Wavre
  • Adjustable seal member for conduit to manhole junction
    Patent number: 4342462
    Abstract: An adjustable seal member for effecting a leak-proof junction between a conduit and an opening in the sidewall of a manhole well in an underground sewer installation. The seal member, made of elastomeric material, is in the form of a flanged sleeve which is disposed about the periphery of the conduit and which is clamped over the conduit by means of a steel strap clamp. The flange is embedded in the concrete or cement of the manhole well structure in the edge of the opening in the manhole. The sleeve is adjustable to diverse conduit sizes within a range by having a plurality of increasing internal diameter portions for fitting conduits of different outer diameters within the range to insure relatively close fit between the internal surface of the sleeve and the external surface of the conduit.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: August 3, 1982
    Inventor: John Carlesimo
  • Wire electrode for cutting an electrode workpiece by electrical discharges
    Patent number: 4341939
    Abstract: A metallic wire, for cutting a workpiece by electrical discharge machining, coated with at least one layer of a metal having a low temperature of vaporization and a film of a metal oxide on the metal layer. The metallic coating is preferably made of zinc and is subjected to an oxidizing thermal or electrolytic treatment such as to form on the surface of the metallic layer a thin film of zinc oxide.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: July 27, 1982
    Assignee: Ateliers des Charmilles, S.A.
    Inventors: Jean-Paul Briffod, Roland Martin, Jean Pfau, Bernard Bommeli, Danielle Schnellmann
  • Peeling machine having a rotating cutter plate
    Patent number: 4335650
    Abstract: A peeling machine for peeling fruits and vegetables comprising a cutter disc having in its center a boss for mounting the disc to a driving shaft and having a plurality of apertures arranged substantially radially and open into clearances arranged at the periphery of the plate, each said aperture being bounded on its rear side relative to the rotation of the plate by a cutter blade with a sharp edge. The plate may further comprise at least one, and preferably two radial protruding bosses, the upper portion of each of the bosses comprising at least one aperture also bounded on its rear side with a cutter blade whereby the fruit or vegetables to be peeled are stirred during the peeling operation. A peripheral safety guard and a tapered edge may also be provided for the plate.
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: June 22, 1982
    Assignee: DITO
    Inventor: Olivier H. C. Prevot
  • Sealed compound bearing
    Patent number: 4331367
    Abstract: A sealed compound bearing consisting of an outer and an inner member movable relative to each other and between which are disposed load carrying annular members. The load carrying annular members comprise a pair of elastomeric rings held between the outer and inner members under compression, and a metallic ring insert disposed between and separating the two elastomeric rings. A narrow clearance is provided between the peripheral surface of the metallic ring insert and the inner surface of the bearing outer member, and between the metallic ring inner surface and the inner member peripheral surface. Normal loads are taken and absorbed by the elastomeric rings, while overloads and shock loads are taken by the metallic ring insert.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: May 25, 1982
    Assignee: Gulf & Western Manufacturing Company
    Inventors: William H. Trudeau, Joseph E. Smith
  • Apparatus and process for preventing rupture of the wire electrode of an EDM travelling wire apparatus
    Patent number: 4329558
    Abstract: An arrangement for detecting abnormal concentration of electrical discharges between a travelling wire electrode and a workpiece in a travelling wire EDM apparatus. The abnormal electrical discharge detector of the invention comprises a circuit measuring the voltage across a pair of contacts supplying machining current to the electrode wire. The length of the electrode wire between the two contacts forms a pair of variable resistors connected in a branch of a Wheatstone bridge circuit. The voltage measuring circuit, connected across a diagonal of the bridge, in turn controls some of the machining parameters such as to prevent damages, as for example rupture of the wire electrode, when an abnormal concentration of electrical discharges is detected at a given point of the machining zone between the wire electrode and the workpiece.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: May 11, 1982
    Assignee: Ateliers des Charmilles, S.A.
    Inventor: Roland Martin
  • Foldable chair
    Patent number: 4325577
    Abstract: A foldable chair comprising a seat portion made of a sheet of flexible material such as canvas, fabric, leather or plastic supported by a pair of rectangular support frames hinged relative to each other and crossing each other along an intermediary hinge line such as to form a figure X when supported from the ground and viewed from the front. The flexible seat portion is frictionally held at its ends as a result of being wrapped around and passed between a pair of parallel lateral tie members forming part of each support frame or, alternatively, forming part of an armrest in chair structures including a back supporting portion.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: April 20, 1982
    Inventor: Sacha Thebaud
  • Process and apparatus for machining by electrical discharges along a slant axis
    Patent number: 4323749
    Abstract: The present invention is a process and apparatus for machining an electrode workpiece by electrical discharges, wherein the electrode workpiece and an electrode tool are displaced relative to each other at least in one slant direction disposed at a predetermined angle with the principal axis of feed of one electrode relative to the other, the machining gap between the electrodes is set at a finite value such as to maintain predetermined machining conditions, consecutive machining passes are effected and, at the end of each machining pass, the slant direction of feed is displaced as soon as the amplitude of relative displacement between the electrodes reaches a predetermined limit value, and such limit value is changed from one pass to the next.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: April 6, 1982
    Assignee: Ateliers des Charmilles, S.A.
    Inventors: Michel P. Mazond, Alain Wavre
  • Modular contoured furniture
    Patent number: 4322109
    Abstract: Contoured furniture, such as chairs and tables, made of elongated profiled slats disposed substantially parallel to each other in at least two separate groups. The profiled and contoured slats in each group are attached together in spaced relationship at least at one of their ends, and the two groups of slats are interlaced along a crossing hinge area, such as to form an X-shaped piece of furniture when viewed from a side. Tension rod members are provided for rigidly holding the two groups of interlaced contoured slats relative to each other.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: March 30, 1982
    Inventor: Sacha Thebaud
  • Rotary screen for receiving optical images particularly advertising images
    Patent number: 4319805
    Abstract: A rotary screen mounted in the median area of a preferably spherical enclosure, the rear face of which being made opaque except in its central portion, while its front face is perfectly transparent, a projector being placed rearwardly of the enclosure in central axis of the portion which is not opaque in order to enable light rays from the prospector to pass through the enclosure to reach the rotary screen.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: March 16, 1982
    Inventor: Pierre Nicolas
  • Electrode tool holder for EDM apparatus
    Patent number: 4319115
    Abstract: An electrode tool holder for an EDM apparatus which can support either an electrode tool of large size or an electrode tool of small size. The EDM apparatus is provided with a ram consisting of two separate, preferably concentric, linearly movable slide members. One of the slide members, linearly displaceable by a servo motor, carries a holder for an electrode tool of small dimension. The second slide member, although normally linearly displaceable relative to the first slide member, is arranged to be coupled to the first slide member for supporting an electrode tool of large dimension, both coupled slide members being thus driven by the same servo motor.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: March 9, 1982
    Assignee: Ateliers des Charmilles
    Inventor: Benno I. Bonga
  • Cutting tool
    Patent number: 4318318
    Abstract: A cutting tool, preferably in the form of a cutting insert of hard material, having a narrow land area or ledge along the cutting edge, forming a shallow recessed groove promoting the formation of a false cutting tip build-up during use of the cutting tool, the cutting tip build-up resulting from the transfer of material from the chip to the ledge surface. The cutting tool of the invention enhances and favors the formation of a cutting tip build-up by providing the shallow recessed groove with a width which is a function of the cut taken by the cutting tool in a workpiece such that the chip removed from the workpiece during a cutting operation bridges the recessed groove.
    Type: Grant
    Filed: July 29, 1980
    Date of Patent: March 9, 1982
    Inventor: Lawrence A. Schott
  • Comb with integral clip for attaching to a support
    Patent number: 4317465
    Abstract: A comb adapted for attaching to a support member, such as the bracket of a motor car inside rear-view mirror, is provided with an integral handle having an extending end terminating in a resilient clamp arrangement which enables the comb to be conveniently attached to, and removed from, a support member which is dimensioned to receive the clip jaws.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: March 2, 1982
    Inventor: Thomas A. Rae, Jr.
  • Auxiliary windshield and window wiper
    Patent number: 4316303
    Abstract: An auxiliary portable and removable windshield and window wiper, for a motor vehicle, consisting of a wiper unit comprising an electrically driven motor oscillating a wiper blade and adapted to be mounted on the exterior of the motor vehicle body by, for example, a pair of strong magnets engaged with a metallic portion of the body proximate a rear window, a side window, or the windshield, with the wiper blade disposed over the window or windshield transparent surface. Electric power for the motor is supplied by an electric line provided on its end with a plug engageable within the cigarette lighter socket in the dashboard, the electric line being passed from the exterior to the interior of the vehicle, for example between the edge of a window and the window frame or opening window.
    Type: Grant
    Filed: April 3, 1980
    Date of Patent: February 23, 1982
    Inventor: Silas Penn
  • Inlet manifold preheating device
    Patent number: 4316442
    Abstract: A preheating device for the inlet manifold of an internal combustion engine, comprising at least one probe projecting into the exhaust manifold of the engine connected via a heat-conductive metallic rod or pipe to a second probe projecting into the inlet manifold, for transferring heat from the exhaust manifold to the fuel-air charge flowing through the inlet manifold. The probe disposed in the inlet manifold may be provided with an electrical heating element such as to preheat the interior of the inlet manifold prior to starting the engine, and providing heat to the fuel-air charge during cold starts of the engine.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: February 23, 1982
    Inventor: George P. McGinnis
  • EDM Apparatus with tool changer
    Patent number: 4316071
    Abstract: An EDM apparatus for machining by electrical discharges an electrode workpiece by one of a plurality of electrode tools individually and selectively mounted by an automatic tool changer on the apparatus electrode tool holder. The tool changer comprises a tool transfer carriage provided with a grasping mechanism adapted to take hold of electrode tool supports of diverse shapes provided with cut-out portions enabling connection with the carriage for carrying the electrode tools from a storage magazine to the electrode tool holder and back from the electrode tool holder to the magazine.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: February 16, 1982
    Assignee: Ateliers des Charmilles S.A.
    Inventor: Benno I. Bonga
  • Play mat
    Patent number: D264102
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: April 27, 1982
    Inventor: Jan Howard
  • Calibrated replacement torque rod
    Patent number: RE31013
    Abstract: A torque rod replacement assembly which includes ball joint assemblies, each having a projection arm, one of which telescopes into the other, weld slots .Iadd.or windows .Iaddend.being provided for permanent assembly, and graduation being provided on the telescoping parts to facilitate accurate adaptation to a vehicle being serviced.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: August 17, 1982
    Assignee: Gulf & Western Manufacturing Company
    Inventor: Joseph E. Smith, Jr.