Patents Represented by Law Firm Kenway & Jenney
  • Patent number: 4572058
    Abstract: To reduce deformation of the piston pin for the rotating connection of a ton and a connecting rod in a piston cylinder system, especially in internal combustion engines, where the piston pin is made of fiber-reinforced composite material in which fibers running in different directions are placed, it is proposed that the piston pin is secured against rotation around its longitudinal axis in the piston or in the connecting rod, and has first regions in which the fibers are arranged in planes parallel to the piston pin axis and when secured against rotation in the piston, running parallel to the piston axis, or when secured against rotation in the connecting rod, running parallel to the connecting rod axis, so that they have a component running parallel to the piston axis or to the connecting rod axis.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: February 25, 1986
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventors: Bernhard Hinz, Gerhard Gruninger
  • Patent number: 4570578
    Abstract: A method and apparatus is provided for propelling a hydrogen engine with ogenically stored hydrogen, wherein a pump, cooled down to an operating temperature close to the hydrogen boiling point, feeds hydrogen to the fuel-injection hydrogen engine. In order to improve the method and the apparatus so that the pump need not be maintained constantly at the operating temperature, it is proposed that the pump, when its temperature exceeds its operating temperature level, be purged with cold hydrogen gas and thus cooled down until its temperature drops to the operating level, and that the hydrogen gas that has been passed through the pump be utilized to propel the hydrogen engine in a partial-load range.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: February 18, 1986
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventors: Walter Peschka, Gottfried Schneider, Willi Nieratschker
  • Patent number: 4570352
    Abstract: Bow sight for accurate aiming of an archery bow. The sight includes a mount for supporting a front sight and a rear sight a predetermined distance apart. The front sight has a staircase configuration while the rear sight consists of an opening including cross-hairs. In operation, the cross-hairs of the rear sight are aligned on a target and the bow is elevated to place selected portions of the staircase arrangement of the front sight into alignment with the cross-hairs.
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: February 18, 1986
    Inventor: Manuel J. Leal
  • Patent number: 4569505
    Abstract: In order to simplify production of clip removing forceps used to bend open skin clips, it is suggested that one of the two branch elements encircles the other in the shape of a U in the region of pivotal connection, that one of the two branch elements bears on its side walls facing the other branch element projections arranged at the axis of rotation, that the other branch element has circular recesses to accommodate these projections, that the projections have a circular cross section corresponding to that of the recesses, whereby two opposite side faces of these projections are flattened, and that a groove runs from the circular recess to the edge of the other branch element, the width of this groove corresponding at least to the distance between the flattened sides of the projections but being smaller than the diameter of the circular recess and this groove being aligned such that, in the operating position of the two branch elements, the curved side portions of the projections rest at least partially on c
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: February 11, 1986
    Assignee: Aesculap-Werke AG
    Inventor: Karl Braun
  • Patent number: 4566723
    Abstract: It is suggested in relation to a coupler for hose lines of high-pressure cleaning equipment and high-pressure spraying equipment comprising a nipple and a connecting piece to be coupled to the latter that the nipple be captured by a sleeve containing catch projections with recesses extending into its interior, that a compression spring be positioned between the inner wall of the sleeve and the nipple, that the connecting piece have on its outer wall outwardly projecting catches with locking lugs which slip into the recesses in the catch projections, and that the compression spring push the locking lugs into the recesses in the catch projections when the connecting piece is inserted into the sleeve.
    Type: Grant
    Filed: July 12, 1983
    Date of Patent: January 28, 1986
    Assignee: Alfred Karcher GmbH & Co.
    Inventors: Werner Schulze, Josef Gerich, Emil Scheef, Heinz Dautel
  • Patent number: 4562901
    Abstract: A sound absorbing block of molded structural material has a sequence of internal cavities that communicate with a region containing the sound to be suppressed through a first elongated slot located in an exterior wall of the block. The internal cavities are defined by interior walls, at least one of which also contains an elongated, sound-communicating slot. Each slot and its associated cavity define an acoustical Helmholtz resonator that dissipates sound energy incident upon the slot with an absorption peak at a natural frequency f.sub.n. The value of f.sub.n for each resonator is inversely proportional the square root of the volume of the cavity. The internal cavities are arranged to cascade in order of decreasing stiffness beginning at the first slot. In one form, two sequences of cavities in a block use a common final cavity. Also, the exterior slots can be formed in more than one wall to absorb sound produced in multiple regions.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: January 7, 1986
    Assignee: Miguel C. Junger
    Inventors: Miguel C. Junger, Klaus Kleinschmidt
  • Patent number: 4562860
    Abstract: A valve assembly is provided which is particularly suitable for operation and maintenance under extreme environments. It includes a valve body, a ball valve member rotatably mounted within the valve body, a bonnet removably secured to the valve body, and seat retaining asemblies removably secured to the bonnet. Upon removal of the bonnet, the valve member and all internals are also removed as a unit so that they may be serviced at a convenient location. The seat retaining assemblies may include inclined surfaces which seat against oppositely inclined surfaces defined within the valve body. An alignment plate is secured to the seat retaining assemblies to insure proper sealing.
    Type: Grant
    Filed: July 6, 1983
    Date of Patent: January 7, 1986
    Assignees: Wilmington Trust Company, William J. Wade
    Inventors: John F. Walter, Bruce M. Costa, Harry E. Eminger
  • Patent number: 4558600
    Abstract: A force transducer has (1) a pair of opposed rigid-body force summing members that each include a sensor member and (2) a pair of beam members that each extend between and couple the force summing members. These sensor members have opposing sensing portions which are mutually offset. A force-to-be-measured is applied to a summing member, either directly or through a rigid input force member. The force deforms the beams so that the sensing members are displaced with respect to each other while maintaining their parallel relationship. In one form the entire force transducer is formed from a single piece of material. A conductive material coated on a pair of small ceramic inserts that are bonded to the sensor portions form an accurate capacitor to measure the applied force. In another form, the sensor members are secured to the flexible beams.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: December 17, 1985
    Assignee: Setra Systems, Inc.
    Inventor: Shih-Ying Lee
  • Patent number: 4557077
    Abstract: An optical projection profile-grinding machine with a workpiece holder that accepts the workpiece to be machined, a grinding wheel that may be positioned in relation to the workpiece, a projector for displaying an enlarged image of the point of engagement between the workpiece and grinding wheel on a projection screen, and a nominal profile line arranged on the projection screen, characterized by the workpiece being capable of rotation around the optical axis of the projector and of fixation in different angular positions in unison with the projection screen and its nominal profile line. The projection screen, or a carrier screen that accepts a nominal profile line and is arranged on the projection screen, is rotatable around the optical axis of the projector, in synchrony and at the same angular velocity as the workpiece.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: December 10, 1985
    Inventor: Alfred Kolb
  • Patent number: 4552512
    Abstract: A water-powered positive displacement auxiliary sump pump has a drive water inlet connected to the municipal water supply via a float actuated pilot valve. The pump is designed to be constructed chiefly of molded plastic supported by an exit manifold connected to the discharge line of an existing electrical sump pump. The presently preferred design is a rotary sliding vane pump having drive water and pump water chambers.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: November 12, 1985
    Assignee: Permutare Corporation
    Inventors: William Gallup, Detleff W. P. Schmidt
  • Patent number: 4551241
    Abstract: A particle classifier includes a generally cylindrical, air and fine particle permeable cage having a closed top and open bottom mounted to a central drive shaft. A casing surrounds the cage and defines a volute air passage about the cage with an air separation zone between the volute and the cage. A generally tangential air inlet is provided in the casing volute and a material inlet is provided in the upper end of the casing. A stationary chamber is positioned below the cage for the air and fine material which enter the cage. From the chamber, the air and fine material is directed to cyclone separators in which the air is separated from the particles. A hopper is positioned below the chamber for collecting coarser material which fails to enter the cage. The size of the volute can be adjusted by a vertical partition within the casing. The partition allows flexibility in setting the air velocity.
    Type: Grant
    Filed: February 8, 1984
    Date of Patent: November 5, 1985
    Assignee: Sturtevant, Inc.
    Inventors: Ronald R. Saverse, Harold T. Jones
  • Patent number: 4550123
    Abstract: Textile quality polymeric fibers and thin films that are highly sorbent for organic and other vapors, mists and solutes. The fibers and films comprise a polymeric matrix with a system of interconnecting micropores, and are highly loaded with particulate sorbents such as activated carbon. The fibers and films are manufactured by forming a melt blend of the sorbent particles, the polymer and a selected diluent, spinning or extruding and drawing down the fiber of film, and extracting the diluent. The diluent functions to permit a high spin or extrusion draw down, to permit the subsequent cold drawing of fibers highly-loaded with active carbon, and to permit the fiber or film to be porosified. Optionally, the diluent may be extracted after or before cold drawing, or without any cold drawing. The fibers and films are highly sorbent, are strong and durable and exhibit substantial strength over an appreciable degree of elongation.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: October 29, 1985
    Assignee: Albany International Corp.
    Inventors: George Lopatin, Myron J. Coplan, James P. Walton, Jr.
  • Patent number: 4548385
    Abstract: A rotor valve has a set of sealing members or inserts positioned in longitudinal channels formed on the outer surface of a cylindrical rotor. A resilient O-ring snuggly engaged in a groove in the rear surface of each insert urges it against a surrounding rotor chamber formed in a valve body. Due to the resilience of the O-ring, the fluid seal between the rotor and the rotor chamber does not bind due to contaminants or extreme variations in temperature. The sealing inserts are formed of a deformable material. Fluid pressure acting on the inserts deforms them to produce a lateral squeezing force on the O-ring. The interaction between the inserts and the O-ring enhances the integrity of both the seal between the inserts and the surrounding rotor chamber and the seal established by the O-ring itself between the rotor and the insert.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: October 22, 1985
    Assignee: Quality Controls, Inc.
    Inventor: David J. Barbuto
  • Patent number: 4546404
    Abstract: Integrated circuits (IC's) are stored for a time interval in a set of elongated guideways to bring them to a preselected temperature prior to testing. The guideways each hold a line of IC's in a loose end-to-end array. A frame carries the guideways. The frame and guideways rotate about a central shaft that is generally aligned with the guideways. The guideways are rotatably mounted in the frame and a gear system, preferably one carried on the frame and the guideways, ensures that as the frame rotates the guideways maintain the same angular orientation with respect to the horizontal. In the preferred form the guideways are generally tubular members with an upwardly facing open channel and an opposed, spaced apart rail that retain and guide the IC's. The entire frame and the guideways carried in the frame are inclined from the horizontal to provide a gravity feed of the IC's from one of the guideways located at an "unloading" position.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: October 8, 1985
    Assignee: Daymarc Corporation
    Inventors: Nicholas J. Cedrone, Kenneth R. Lee
  • Patent number: 4541428
    Abstract: The tweezer legs (1) each carry, at their ends movable under spring pressure, a tweezer jaw (5) with a cutter (8). The tweezer jaws (5) and the cutters (8) are located in a mirror image opposite one another on both sides of a plane of symmetry (7') and are inclined at an angle .alpha. of 50.degree.-70.degree. in relation to an axis lying in the plane of movement (7) of the tweezer legs (1).
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: September 17, 1985
    Inventor: Hans Scherrer
  • Patent number: 4540868
    Abstract: In order to avoid contamination of a bombarding plasma jet by the products f cathode erosion in a plasma gun having a cathode and an anode, with which a connecting plasma is produced which strikes vertically onto the bombarding plasma jet and flows through a cooled duct between the cathode and the bombarding plasma jet, it is suggested that the cathode should be located in an enclosed cavity, the duct emerging from a wall of this cavity and the cathode being laterally offset relative to the inlet port to the duct, and that a gas supply line should open into the duct between the inlet port and the end of the duct facing the bombarding plasma jet, gas being supplied through this supply line as a substitute for the deposited cathode material in order to maintain a substantially constant particle density in the connecting plasma.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: September 10, 1985
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventor: Lothar Liebing
  • Patent number: 4537195
    Abstract: Electrical stimulation through externally applied electrodes is used to control discharge from a stoma. The electrical signals applied to the electrodes have a frequency in the range of 10 Hz to 80 Hz, and a voltage level in the range of 20 volts to 60 volts. Apparatus for effecting the electrical stimulation is described. The electrodes may be ECG electrodes or formed as a pair of discs molded into an insulating pad.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: August 27, 1985
    Inventor: Roy E. McDonnell
  • Patent number: 4534246
    Abstract: An adjustable wrench particularly suited for use on six-sided fasteners. The wrench has a handle that mounts two adjustable arms that each have a gripping head formed on an end portion that projects from the handle. The handle has a fixed flat surface on its top end located between the two projecting arms. The wrench includes a mechanical arrangement to move the arms into and out of a gripping relationship with the fastener. The arms are positioned with respect to the handle and the flat surface so that the flat surface and gripping surfaces of the gripping heads are in an abutting relationship with the associated fastener sides regardless of its size. This three-sided contact on the fastener results in an equiangular distribution of force exerted upon the fastener.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: August 13, 1985
    Inventor: Chris McNulty
  • Patent number: D280127
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: August 13, 1985
    Assignee: Vermont Castings, Inc.
    Inventors: Duncan C. Syme, Vance R. Smith
  • Patent number: D280615
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: September 17, 1985
    Assignee: Joseph Pollak Corporation
    Inventors: Willi K. Beck, Leo Roytberg