Patents Represented by Attorney J. Gibson Semmes
  • Patent number: 6743632
    Abstract: Centrifugal analyzer and method for staining biological or non-biological samples in microgravity, wherein the method utilizes an increase in weight of a fluid sample as a function of g-load, to overcome cohesive and frictional forces from preventing its movement in a preselected direction. Apparatus is characterized by plural specimen reservoirs and channels in a slide, each channel being of differing cross-section, wherein respective samples are selectively dispensed, from the reservoirs in response to an imposed g-factor, precedent to sample staining. Within the method, one thus employs microscope slides which define channels, each being of a differing cross-section dimension relative to others. In combination therewith, centrifugal slide mounting apparatus controllably imposes g-vectors of differing magnitudes within a defined structure of the centrifuge such as a chip array.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: June 1, 2004
    Assignee: Universities Space Research Association
    Inventors: Mark S. F. Clarke, Daniel L. Feeback
  • Patent number: 6233874
    Abstract: A balanced free-standing juvenile safety gate characterized by its facile placement and displacement in a passageway wherein adjustably connected frame sections include a hinge frame and frame supporting platform with a hinge standpost being fixed to the platform; an extendible latch frame attached to the hinge frame with a latch handle atop said frame section, said latch handle having intermediate pivot connection to the frame section by pivoted connectors which in turn join the latch handle to a lever yoke, the lever yoke being connected at a lower end to a moveable bracket, whereby, upon closure of the latch handle transverse movement of bracket and pressure bar is forced into registry with one extreme of the passageway, against resistance of the standpost on an opposite extreme of the passageway; a caster supports the latch frame in extension of the hinge frame, during positions of passageway closure and opening.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: May 22, 2001
    Inventor: Marvin B. Johnson, Jr.
  • Patent number: 5855041
    Abstract: This heavy-duty, sliding panel door guard/bumper includes a rigid base plate which is suitable for mounting upon a doorjamb or a sliding panel in a distortion-free connection, by means of plural fastening anchors. The panel serves as a mount for opposed trunnions which mount a wheel axle thereon. The gudgeons of the trunnions are elevated vertically from the base plate, adjacent one end thereof and the elevation of each trunnion is inclined forwardly to form a sliding slope which corresponds at its proximal end to the circumference of an aligned sliding panel bumper wheel, although the maximum elevation of the trunnions is less than the protruding circumference of the bumper wheel. The wheel has axle bearings therein such that a minimum of friction is presented to passing contact of one heavy duty panel which is slid relative to another.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: January 5, 1999
    Inventor: Paul C. McMichael
  • Patent number: 5632514
    Abstract: The invention encompasses a juvenile safety gate latch and housing which is handily mobile, its function being to render the existing gate secured, for intermittent passage of an adult through a gateway. It is especially useful for swinging such a gate from its open to closed position, and vice versa. It has specific utility for gates which are extendible and retractable. In their extended, closed position they compress against walls of a passageway for fixation against dislodging forces. The latch housing may be mounted upon a door stop or balustrade separately from the gate, but it is ideally portable with the gate from one passageway to another. It is characterized by its portability and versatile mounting without the use of any screws or other fixing devices. Once mounted it permits the adult to open and close the gate with one hand.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: May 27, 1997
    Inventor: Marvin B. Johnson, Jr.
  • Patent number: 5543040
    Abstract: The present industrial purification system consists of an electronic power supply and control unit, an ionization delivery unit, having at least one unique Copper/Silver electrode rods. It's objective as applied to water-based fluids in a closed-loop flow system is to prevent electrostatic materials from building up on the cathodic ionization rods and/or achieving ionization in very low conductive water-based systems which have as their medium de-ionized, ultra-purified, or reverse osmosis filtered water. The power supply and control unit requires 120 or 240 vac input at less than 1 amp, and provides an adjustable regulated dc voltage to the electrode rods, dc voltage being 50 volts. A zero center meter on the control panel indicates the actual voltage supplied to the electrodes, whereas current flowing through the electrodes is indicated by a second zero centered meter.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: August 6, 1996
    Assignee: FI-Tek Purification Systems, Inc.
    Inventors: Robert D. Fite, Jr., John S. Ilasenko, Edwin H. Colburn
  • Patent number: 5529321
    Abstract: A portable ground engaging, draft and equalizer assembly and kit for loading and subsequent hauling of discrete items of large bulk such as mulch, leaves, and grass cuttings. The kit is characterized by a singletree draft bar to which a hauling harness is secured, the draft bar and harness bearing clevis clips for attachment to a flexible, reinforced tarpaulin. Grommets suitably anchored in the tarpaulin selvedge edges provide towable connection thereto. Specific reinforcement of the tarp ensures against tearing under excess load conditions and the tarp is thus provided with consistently spreadable characteristics. The coaction of tow bar, tarpaulin weights in the combination, enhance the continual spreading of the tarpaulin when it is loaded and being towed by hand or tractor. The assemblage provides a readily furled travel kit, the tow bar serving as a rigid core therefor.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: June 25, 1996
    Inventor: George R. Thompson
  • Patent number: 5487367
    Abstract: An automatic advance unit as applied to the circuit breaker ignition of motorcycles. In the circuit breaker advance unit herein, flyweight roll pins are not set in the flyweights, per se, but they are mounted in the advance unit backing plate, ensuring that the flyweights are movable in perfect horizontal position. The advance unit assembly baseplate and centrally disposed breaker cam journal thereon has connection to a driving gear cam; opposed flyweight mounting pins project from the, backing plate and opposed flyweight mounting pins are on the backing plate, per se; opposed flyweight roll pins being set thereon, breaker cam spot pin is interposed on the plate including the breaker cam and flyweight roll pins. A breaker cam 9 is mounted in extension of journal of the backing plate, centrally thereof; centrifugally activated flyweights are slideably contacting contiguous portions of the baseplate.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: January 30, 1996
    Inventor: Keith R. Lassiter
  • Patent number: 5218176
    Abstract: Lightweight speaker cabinets manufactured from acoustical composite panels having unique acoustical and structural properties, include an acoustical composite laminate consisting of a porous inner core of closed cell rigid urethane foam which is bonded to fiberglass rovings or skin by means of polyester resin and resin tie blocks, interconnecting the exterior and interior roving and core.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: June 8, 1993
    Inventor: Kurt K. Meyer, Jr.
  • Patent number: 5213553
    Abstract: A complemental series of handheld, tactile devices in kit form to assist in behavioral modification training techniques as well as utilizing the techiques of "resisted movement" and "successive approximation". Each positioner device is handheld, with one portion protruding from the lips and the other portion loosely fitting on the patient's hard plate. Different shapes are introduced to the tongue and lips on each respective device. A commonalty within the interdependent positioner devices is presented by an elongated palatal base defining a convex upper surface to engage the palate, a manipulable handle projecting from the base and the respective devices are further characterized in configuration.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: May 25, 1993
    Inventor: Jack Light
  • Patent number: 5199442
    Abstract: Apparatus for treatment of spasticity by electrical stimulation in male and female patients having spinal cord injury. The apparatus is likewise adapted to stimulate ejaculatory nerves in the male through ejaculation and is characterized by an electronic stimulator which delivers current by rectal probe to the prostate and seminal vesicle glands in serial variance of since wave voltage. In both male and female treatment of spasticity, substantially similar apparatus is employed.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: April 6, 1993
    Inventors: Stephen W. J. Seager, Lauro S. Halstead
  • Patent number: 5199415
    Abstract: An adjustable fireplace hearth shield characterized by a frame which by extension and/or retraction is compressed upon the hearth outline, above the surface of the floor. Major and minor tightening adjustments may be effected while the frame is closely applied to the hearth. Simplicity of construction and/or on-site assembly distinguish the invention.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: April 6, 1993
    Inventor: Marvin B. Johnson, Jr.
  • Patent number: 5183055
    Abstract: A device which is useful in urological and andrological measurements of anatomical organs and for calculation of related volumetric capacity thereof which includes a graduated rule, bearing at one end thereof a fixed jaw, the rule defining an elongated cavity therein with a rack on at least one side thereof, and a movable jaw marker assembly opposed to the fixed jaw, said assembly being slideably mounted upon the rule; a refined marker scale engaging the rule in operative connection, and including a drive to motivate the refined scale relative to the graduated scale of the rule.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: February 2, 1993
    Inventor: Stephen W. J. Seager
  • Patent number: 5158283
    Abstract: Portable association croquet wicket practice assembly of three-point playing surface contact, defining a simulated target wicket wherein upright legs are fixedly spaced apart in regulation measure by a topmost transverse crown, the free ends of the legs being supported by surface contact, the target wicket being ballasted and balanced rearwardly by two interconnected weights, a first weight being elevated and fixed relative to the crown to apply vertical and horizontal moments to the wicket, a second weight being in slope declination relative to the first weight to apply target aligned and anchoring moments to the wicket. The wicket, per se, is white in the assembly foreground and neutral or dark in its background.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: October 27, 1992
    Assignee: Damon Company of Salem, Inc.
    Inventor: Wayne Herkness, 2nd
  • Patent number: 5046321
    Abstract: A thermodynamic constant volume vapor compression heat pump system including method and apparatus wherein a closed fluid loop having first, intermediate and second treatment stations, is employed. A liquid refrigerant fluid under low pumping pressure is introduced to a first treatment station following initial expansion, accelerating propulsion, and atomization thereof, precedent to evaporation of the refrigerant fluid through a divisive containment of the accelerated refrigerant fluid.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: September 10, 1991
    Assignee: Thermotek, Inc.
    Inventor: Sherwood F. Webster
  • Patent number: 5034581
    Abstract: An apparatus comprising a plurality of electric switches, pneumatic actuators for the switches, assemblies for preventing inadvertent actuation of one or more switches and supports for the elements of the assemblies in coactive relation to each other, in such a way as to prevent eventual binding of the spring arm retainer. This apparatus further eliminates the need for molding of the retainer plate or the separate molding of the supports leading to a reduction in cost and assembly time.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: July 23, 1991
    Inventor: John F. Bruels
  • Patent number: 5029407
    Abstract: A collapsible bipod for sidearms weapons characterized by extensible and retractable legs, contained in the forearm of the weapon.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: July 9, 1991
    Inventor: Lloyd D. Kirkpatrick
  • Patent number: 5027811
    Abstract: A device which adapts to the neck of a patient who has undergone a tracheostomy. It is useful in supplying humidification and oxygenation upon inhalation and to exhaust the outgoing exhalation gases and secretions upon exhalation. It is characterized as a tracheostomy bubble and has front and rear barriers which remain in spaced relation to each other, irrespective of the patient's breathing.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: July 2, 1991
    Inventor: Judith D. Tuxill
  • Patent number: 4926513
    Abstract: In storage and utilization of disposable bedding materials as for example for institutional usage, non-woven bedding materials dispensably secured to a portable bed, and including tensioning therefor, whereby the two or more bedding materials such as sheets are held in superposed and stretched relation to the mattress of a bed, the system to include means for longitudinally shifting used portions of bedding materials, for cutting same, while simultaneously replacing same in bedding relation to a bed mattress. Sheets may either be pulled, hand-cranked or motorized on a bed.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: May 22, 1990
    Assignee: Roll-in-Sheet Inc.
    Inventor: Edwin O. Oats
  • Patent number: 4913451
    Abstract: A vehiclular towing hitch is described wherein its coupling to the frame or bumper of a towing vehicle may be easily connected and/or disconnected, simply by towing hitch extension and traverse. The towing hitch is characterized principally by an extendible tongue on its trailing end which is slidable, relative to draft bars and a tie bar, permitting, when extended, the angular dislocation thereof to the degree that an attached towing hitch may be readily secured to the towed trailer vehicle frame ball mount without any further movement at all of the towing vehicle relative to the towed vehicle.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: April 3, 1990
    Inventor: Reginald O. Woodall
  • Patent number: D350887
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: September 27, 1994
    Assignee: C. M. E. Blasting and Mining Equipment Ltd.
    Inventors: Robert Sjolander, Dag Stenmark