Patents Represented by Attorney Richard E. Jenkins
  • Patent number: 4977268
    Abstract: Novel boron dipeptide analogs and their corresponding amide derivatives which exhibit significant antihyperlipidemic and antineoplastic activities. Methods for preparing the boron containing compounds are disclosed as well as methods for utilizing the compounds to induce antihyperlipidemic and antineoplastic activity.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: December 11, 1990
    Assignee: Duke University
    Inventors: Andrew T. McPhail, Bernard F. Spielvogel, Iris H. Hall
  • Patent number: 4970853
    Abstract: A push rake having a handle member with a transverse frame secured to one end thereof for carrying a plurality of tines. The tines define an arcuate forwardly extending lowermost portion which carries a fixed cylindrical bearing member. The fixed bearing member serves to provide rigidity to the tines as well as a fixed bearing surface to accommodate movement of the raking device across a ground surface.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: November 20, 1990
    Inventor: Jesse M. Greene, III
  • Patent number: 4970242
    Abstract: A novel anhydrous nonflammable tire sealer and inflator composition comprising a hydrochlorofluorocarbon (HCFC) propellant, a solvent, and a rubber resin soluble in the solvent. The composition is packaged in aerosol cans and is used to seal and inflate punctured pneumatic tires. The composition utilizes a solvent-based adhesive resin with a hydrochlorofluorocarbon propellant in order to provide a nonflammable composition which does not utilize environmentally objectionable chlorofluorocarbon (CFC) propellants.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: November 13, 1990
    Assignee: Nationwide Industries, Inc.
    Inventor: Richard W. Lehman
  • Patent number: 4965977
    Abstract: A panelized roof system comprises a plurality of panels for positioning on a roof substrate. The panels comprise a foam insulation board with a rubber-modified bitumen-saturated synthetic fiber mat bonded to the top surface thereof. A plurality of fasteners penetrates the sides of the panels and secure the panels to the roof substrate. The panelized roof system is completed and rendered waterproof by a plurality of rubber-modified bitumen-saturated synthetic fiber strips which are applied with hot-mopped asphalt or other non-torched adhesive to the joints between the panels so as to overlap the adjacent fasteners securing the panels to the roof substrate.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: October 30, 1990
    Inventor: Daniel R. White
  • Patent number: 4963866
    Abstract: A multi-channel digital random access recorder-player receives an analog audio signal, converts the audio signal into a digital signal, and stores the digital signal in a memory for random access. The memory includes sixteen channels, each channel having sixteen memory boards, each channel and each memory board being assigned a unique four bit binary address by an address counter. An external control is provided by which the user selects an address for recording or playback and a comparator compares the selected address with the addresses of the memory. When the memory address corresponding to the selected address is detected, that memory board is enabled so that data can be recorded on the memory board or retrieved from the memory board for playback through an audio output device such as a loudspeaker. The recorder-player thereby provides random access to a memory. Also provided is a system in which several modules, each with a logic board and a memory, are combined into a single system.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: October 16, 1990
    Assignee: Digital Recorders, Inc.
    Inventor: Virgil D. Duncan
  • Patent number: 4962879
    Abstract: A method for bubble-free bonding of silicon wafers to silicon wafers or silicon wafers to quartz wafers either outside or inside a Clean Room. The method includes the steps of positioning wafers in closely spaced-apart and parallel relationship to each other in a rack or the like with mirror-polished surfaces of the wafers facing each other, cleansing the mirror-polished surfaces with a hydrophilization cleansing solution, flushing the cleansing solution from the mirror-polished surfaces of the wafers with deionized water, drying the wafers in a spin-dryer, and moving the wafers together so that contact occurs between opposing mirror-polished surfaces of the wafers and bonding occurs. The bonded wafers are then placed into a wafer shipping and storing container for improved wafer storage performance.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: October 16, 1990
    Assignee: Duke University
    Inventors: Ulrich M. Goesele, Volker Lehmann
  • Patent number: 4952217
    Abstract: A fire kindler particularly adapted for ease of ignition and complete combustion so as to render the initiation of a log fire in a fireplace a quick and easy task. The fire kindler comprises a combustible block having a generally V-shaped aperture therethrough and at least one slot extending across the top of the combustible block and downwardly into the block so as to be in fluid communication with the V-shaped aperture.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: August 28, 1990
    Assignee: John S. Fisher
    Inventor: Jerry Porter
  • Patent number: 4951457
    Abstract: A narrow pitch articulated chain wherein the chain links have a narrow pitch and include a concave bearing surface in the bottom thereof in order to travel around a small diameter nose bar and effect an end transfer of small items from a flat top product transport chain. The pitch of the chain links is 0.625 inches or less, and the radius of the bearing surface and nose bar are both 0.5 inches or less and substantially equal to each other.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: August 28, 1990
    Inventor: Douglas O. Deal
  • Patent number: 4951539
    Abstract: An apparatus which cuts grooves in duct board panel is provided which includes a cutting head assembly which travels transversely across the apparatus on a cross track which is mounted to travel along the length of the apparatus. The cross track is positioned according to indicia along the side of the apparatus which indicate where grooves should be cut to form a particular size air duct, and a plurality of different cutting blades carried by the cutting head are sequentially rotated into use to sequentially cut a plurality of differently shaped grooves across the duct board panel.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: August 28, 1990
    Inventor: James A. Buckner
  • Patent number: 4944143
    Abstract: The invention provides a means of controlling the speed of operation of a material processing apparatus, such as a ring spinning machine in a textile mill. The purpose of the invention is to allow high speed processing, while maintaining a high quality product. In the case of ring spinning for instance, the object is to reduce the incidence of yarn breakages.The method in accordance with the invention includes controlling the speed of operation during a total time for processing a finite quantity of the material, and including the use of an automatic control apparatus preset to change the speed of the driving motor in a series of very small increments throughout a speed change time which is a predetermined percentage of the total time, between two speeds, one of which is a predetermined optimum operating speed and the other of which is a predetermined percentage of the operating speed.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: July 31, 1990
    Inventor: Akira Tanaka
  • Patent number: 4944288
    Abstract: The invention provides apparatus for use by a physiotherapist, for measuring the force exerted by a patient, and for exercising a patient, particularly in a rehabilitation program. The apparatus is of the kind wherein the patient is required to exert a force against resistance beam arrangement and in the first aspect of the invention, there is a pre-set rest duration indicator which is adapted to issue a "count-down" signal to the patient up to a predetermined starting time at which the patient is required to exert force against the beam. This feature avoids the patient jerking a limb or body part when a force is required to be exerted against the beam. The indicator includes a graphic display device which has a presetable target force display. Hence the patient is able to obtain a visual indication as to when the force he is applying is equal to the target force.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: July 31, 1990
    Inventor: John Rawcliffe
  • Patent number: 4941813
    Abstract: A mold guidance system for preventing horizontal movement of the mold of a concrete block making machine including, on each side of the machine, a mold support arm extending laterally outwardly from the inside corner of the mold and including a bushing in the outer end thereof, a first clamp secured to the side of the machine frame above the mold arm bushing, a second clamp element secured to the side of the machine frame below the mold arm bushing, and an elongate pin slidably movable within the mold arm bushing and fixedly engaged at the upper end by the first clamp and at the lower end by the second clamp. The mold guidance system prevents horizontal movement of the mold so as to reduce mold wear and increase mold life.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: July 17, 1990
    Inventors: Lloyd T. Grubb, Jr., Joseph T. Kennamer
  • Patent number: 4936823
    Abstract: An implant capsule for insertion into a body canal to apply radiation treatment to a selected portion of the body canal. The device includes a body member defining at least one therapeutic treatment material receiving chamber and at least one resilient arm member associated with the body member for removably engaging the body canal when the device is positioned therein.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: June 26, 1990
    Assignees: Triangle Research and Development Corp., The Johns Hopkins Univ.
    Inventors: David P. Colvin, Bernard R. Marsh
  • Patent number: 4932359
    Abstract: A process for sanitizing and increasing the hatchability of hatchery eggs by exposing the eggs to a solution of hydrogen peroxide during one or more stages of the hatchery process prior to hatching. The process unexpectedly results in a significant increase in the hatchability of the eggs treated.
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: June 12, 1990
    Assignee: North Carolina State University
    Inventors: Brian W. Sheldon, John T. Brake
  • Patent number: 4930824
    Abstract: A gutter cleaner for remotely cleaning an overhead gutter or the like which includes an elongate handle, a pair of cooperating fork-like jaws mounted at the upper end of the handle, and a sleeve slidably mounted on the lower end of the handle for selectively opening and closing the fork-like jaws. The jaws include a stationary first jaw and a relatively pivotably movable second jaw which each have a greater width than height so that the jaws may be placed in a gutter extending in a direction lengthwise with the gutter. In this manner a substantial length of the gutter may be cleaned of collected debris with each application of the gutter cleaner thereto.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: June 5, 1990
    Assignee: Mercantile Enterprises, Inc.
    Inventors: Thomas R. Matthews, Garland B. Ricketts
  • Patent number: 4926512
    Abstract: An inexpensive and lightweight folding paperboard beach chair is formed from a single scored blank of paperboard. The elongated paperboard body has two spaced-apart and transverse score lines which define a bottom leg support panel, a middle seat support panel, and a top back support panel wherein the bottom and top panels are adapted to be folded so as to overlay the middle panel. A plurality of spaced-apart foldable support panels extend across the back of the top back support panel to provide support for the panel when the chair is unfolded, and are further adapted to fold upon and overlay the top panel when the chair is folded. An aperture is provided adjacent to the side edge of each of the top, middle, and bottom panels and positioned so as to be in vertical registration and to thereby form a carrying handle when the chair is folded into its closed configuration with the top and bottom panels overlaying the middle panels thereof.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: May 22, 1990
    Inventor: Brian D. Coyle
  • Patent number: 4903450
    Abstract: A concrete footer block and foundation system formed therefrom for a concrete block wall is provided and comprises a plurality of elongate concrete masonry footer blocks positioned in side-to-side abutting relationship along an axis parallel to the concrete wall to be supported by the foundation system. The footer blocks include an enlarged triangular cavity therein which extends across the footer block and downwardly into at least the middle portion of the block. The cavity is open on each side of the block as well as at the top surface thereof and has a bottom surface which is parallel to the bottom surface of the footer block and includes a plurality of spaced-apart first support ribs extending across the block and at least one second support rib extending perpendicularly to the first support ribs and parallel to the lengthwise direction of the footer block for supporting, respectively, reinforcement wire and reinforcement rods thereon in spaced-apart relation from the bottom surface of the cavity.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: February 27, 1990
    Assignee: Adams Products Company
    Inventor: Fred H. Adams
  • Patent number: 4901861
    Abstract: The present invention relates to a high speed asynchronous fruit sorter, particularly suitable for pit scanning of cherries in order to segregate cherries containing pits from pitted cherries.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: February 20, 1990
    Assignee: Clayton Durand Manufacturing Company
    Inventor: Martin D. Cicchelli
  • Patent number: 4899729
    Abstract: The invention relates to a surgical cannula for introducing instruments, scopes or tubing into body cavities or organs. The cannula comprises a conical tubular stem which is formed of thin sheet material, such as beryllium copper, the sheet material being coiled or partially coiled so that if is capable of opening up from a closed condition by reducing the cone angle, thereby increasing the diameter of the stem at the distal end.In the preferred arrangement, the proximal end of the stem is clamped between two tubular elements fitted one inside the other.The invention also includes the combination of the expansible cannula and a guide rod adapted to pass through the stem and bored throughout its length to receive a guide wire. The guide rod may have a slightly enlarged distal end and the arrangement be such that passage of the enlarged distal end through the distal end of the stem causes a slight opening out of the distal end to allow passage of the enlargement.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: February 13, 1990
    Inventors: Steven S. Gill, Joseph F. Jackson
  • Patent number: D307183
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: April 10, 1990
    Inventor: Robert W. Kalayjian