Patents by Inventor George J. Doundoulakis

George J. Doundoulakis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040089160
    Abstract: The invention relates to a utensil having a rigid section 2, covered with a foil, such as aluminum foil for cooking, then to be stored away clean without the need of washing by simply pilling off and discarding the foil. The foil is applied over the surface of section 2, acting as a female molding section, as a section 1, acting as a male molding section and having a surface complementary to that of section 2, presses the foil against its surface. Additional means are disclosed for providing ridges and grooves to the shape of the foil so that meat, held on top of the ridges, can be cooked outside its fat, which would drain into the grooves.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 13, 2004
    Inventor: George J. Doundoulakis
  • Patent number: 5626989
    Abstract: A storage battery having various cell constructions to increase the surface-to-weight ratio of active material exposed to electrolyte ions, to reduce internal resistance, and to extend the life of the battery is provided. One configuration for the battery cell utilizes pleated positive and negative plates which are monolithically coupled to respective electrodes. Another configuration for the battery cell utilizes a single positive plate and a single negative plate which are interrelated in, for example, a serpentine configuration.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: May 6, 1997
    Assignee: Long Island Lighting Company
    Inventor: George J. Doundoulakis
  • Patent number: 5110014
    Abstract: The object of this invention is to provide vessels for storing a gas to be used for automatically maintaining a predetermined pressure inside a container carrying a liquid, as it would be a beverage containing bottle. Two embodiments of such vessels are presented: One in shape of a capsule which can be dropped inside a beverage bottle, the other in the form of a cartridge which is attached at the bottom of a container, such as a beverage bottle. Both embodiments turn off gas flow when they sense a pressure equal or lower than atmospheric, or higher than a pressure of a predetermined value.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: May 5, 1992
    Inventor: George J. Doundoulakis
  • Patent number: 5066228
    Abstract: One object of the present invention is to provide a saliva ejector tip (3) having holes (6) on a recessed flat surface (4) for providing additional hole area than is available in conventional ejector tips, and away from the soft tissue, where they can cause injurious sucking.The other object is to provide a saliva ejector capable of self controlling the total area of holes by using the strength of the internal vacuum to displace a movable portion (17) of the tip, so that holes (12) and (13) are aligned for increasing the total hole area. Such an increase expedites the rate of removal of fluids so that subsequent inflow of air reduces the vacuum strength, and thereby, helps releasing the soft tissue that may have been sucked up by other holes. Upon lowering of the internal vacuum, the movable portion of the tip returns to its normal position.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: November 19, 1991
    Inventors: George J. Doundoulakis, James H. Doundoulakis
  • Patent number: 5025953
    Abstract: The invention relates to deformable beverage containers for minimizing empty space in the container, to which CO.sub.2 can escape, and for increasing pressure in the container for stopping evaporation of CO.sub.2 from the beverage. With the container cap off or loose, the deformable portion of the container is compressed until the beverage reaches the top of the container. The cap is then secured and further compression applied until a desired pressure is reached. One embodiment covers regular bottles with a special bottle cap, comprising a check valve connected to inflatable bladder, and valve/spout arrangement for dispensing the beverage without opening the bottle. Another embodiment covers special internally deformable containers to which the beverage is transferred for preservation. A third embodiment covers plastic bottles with an external compressing mechanism for deforming the bottle and increasing pressure for maintaining the beverage during further storage.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: June 25, 1991
    Inventor: George J. Doundoulakis
  • Patent number: 4974615
    Abstract: A filamentary article (8) free of silk-like fibers is disclosed, made out of an elastomeric material for use in dental hygiene. The article (8) is stretchable for proportionately reducing its cross section so that a sector (1) thereof, can enter between the teeth. The article (8) provides cuts along the edge, is twisted, or knotted at predetermined intervals along its length for furnishing radially directed edges or surfaces to help wipe food remanants, when longitudinally drawn through the larger interproximal openings, usually found in between teeth near the gums.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: December 4, 1990
    Inventor: George J. Doundoulakis
  • Patent number: 4860702
    Abstract: The object of the invention is to provide means for continuously adjusting the value of the compression ratio in Otto-cycle reciprocating piston engines, for increasing their thermal efficiency, especially at part throttle operation. Embodiment A provides means for continuously adjusting the position of the crankshaft 18 in the crankcase (30); while according to Embodiment B, the position of the connecting rod's head bearing (51) is being adjusted with respect to the cylinder heads by predetermined continuous rotation of eccentric cylinders (17) which are used to support the bearings. Means are shown for accurately meshing the crankshaft gear to the transmission gear in Embodiment A and for introducing predetermined rotational phase shifts to the eccentric cylinders in Embodiment B.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: August 29, 1989
    Inventor: George J. Doundoulakis
  • Patent number: 4735873
    Abstract: The object of the invention is to provide the active substances in storage batteries, both the lead acid and alkaline types, in quasi-fluid form so that they can be replaced by newly charged substances, for rejuvenating the battery after long use, or for immediate charge of the battery.Said battery has a casing (5); active solid cathodic and anodic substances in the form of surface-convoluted negative (15) and positive globules (16), that are close-packed in negative and positive cell compartments (7) and (8) respectively; electrolyte which fills the space between and inside said globules, circulates freely throughout the battery and, if needed, through an external supplementary storage; dielectric separators between cell compartments, electrically insulating negative and positive globules in each cell; and conductive separators providing series connection of adjacent cells.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: April 5, 1988
    Inventor: George J. Doundoulakis
  • Patent number: 4392351
    Abstract: A multi-cylinder Stirling engine comprises a stationary casing, working fluid, at least one heat source, a first heat exchanger for carrying the working fluid and for transferring heat from the heat source to the working fluid thereby raising the working fluid's temperature, and an output shaft rotatably supported by the stationary casing, which provides reaction surface members in at least one chamber where the working fluid is allowed to expand as the reaction members are allowed to move with respect to the casing. A bi-directional flow regenerator with two chambers, a second heat exchanger for further lowering the temperature of the working fluid to a predetermined temperature, and a compression device for returning the relatively cool and therefore dense working fluid back into the first heat exchanger at a lower expense of work are provided. The casing output shaft with reaction members, expansion chamber and compression device have a rotary engine configuration.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: July 12, 1983
    Inventor: George J. Doundoulakis
  • Patent number: 4348636
    Abstract: An integrated circuit tester, comprising switching means for adjusting the logic state of the pins of a test socket to a logic state of "1" and "0" and following a debounced pulsating signal, depending on the logic function and mode of operation of the IC chip under test. Electronic detection means serve to detect the logic state of each pin which is then displayed by luminus means. A card library of IC diagrams provides a diagram for each IC chip that can be tested by the invention with pin numbers, supported adjacent to the luminous display means, so that the significance of each pin is clearly demonstrated. The whole or part of the chip under test is detected as faulty if the pattern of the luminous display with the pulsating signal connected to predetermined input pins, does not obey the predetermined operation of the chip under test.The tester also provides extentions so that the pins of the test socket may be connected to a breadboarding strip and to in circuit operating IC chips.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: September 7, 1982
    Inventor: George J. Doundoulakis
  • Patent number: 4307711
    Abstract: A sun tracking solar energy collector system comprising a plurality of light focusing elements disposed side by side in the form of a surface array, providing a linear array of foci; and a metallic heat exchanger tube having externally a high absorbtivity, low reflectivity coating containing a working fluid such as water, air, hydrogen or helium, to which a substantial portion of the energy in the focused light is imparted.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: December 29, 1981
    Inventor: George J. Doundoulakis
  • Patent number: 4281628
    Abstract: A tri-rotor ballistic engine comprising a frame, a drum rotatably mounted on the frame having an output shaft, with a power cavity and an energy absorbing cavity defined therein. A power shaft is rotatably mounted in the drum. A reaction shaft is also rotatably mounted in the drum and axially aligned with the power shaft. A differential gearing or linkage device interconnects the power shaft, reaction shaft and drum.A pair of inner power pistons are connected to the power shaft and extend radially outwardly thereof and into the power cavity of the drum. The drum includes a pair of outer power pistons which are integral with the drum and extend radially inwardly into the power cavity to define four power chambers with the inner power pistons. Two or more energy storing paddles extend radially outwardly from at least one of the power and reaction shafts and into the energy storing cavity of the drum.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: August 4, 1981
    Inventor: George J. Doundoulakis
  • Patent number: 4217649
    Abstract: A Digitizer for determining the location of a point of contact between a stylus and a surface comprising a rotating light projector for projecting a single light beam having two spaced apart light boundaries, a light sensing stylus spaced from the rotating light projector for sensing the passing of the light boundaries emitted from the rotating light projector, and a logic circuit connected between the rotating light projector, and the light sensing stylus for converting information coming from the rotating light projector, as to the angular position of the light beam and information coming from the sensing stylus, as to the time of the passing of the light boundaries, into digital information. The rotating light projector includes a rotating turntable having at least one light focusing lens thereon with a fixed shielded light source spaced from the turntable and cooperating with the rotating light focusing lens to produce a light beam having a predetermined angle of convergence.
    Type: Grant
    Filed: October 11, 1978
    Date of Patent: August 12, 1980
    Inventor: George J. Doundoulakis
  • Patent number: 4169697
    Abstract: An angular cylinder piston combination is disclosed for providing compression and expansion chambers in a large number of items, such as compressors, pumps, internal and external combustion engines, hydrostatic generators, air motors, and the like, in which compression and expansion chambers are formed angularly, inside a cylindrical drum which rotates at substantially uniform velocity "Wo" and connected to the output shaft. The chambers are formed between N outer radial pistons provided by the drum and N inner radial pistons attached to an inner rotor which accelerates and decelerates from zero velocity to a velocity "2Wo" with respect to a stationary housing. The inner rotor comprises a sleeve overlaying the output shaft and rotatably displacable in relationship therewith. A single port per chamber provides intake and exhaust as it comes into juxtaposition with slots, azimouthally cut on the base of a stationary housing.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: October 2, 1979
    Inventor: George J. Doundoulakis
  • Patent number: 4167922
    Abstract: An internal ballistic engine for providing high thermal efficiency comprising a housing, a powering chamber, a ballistic piston, not directly engaged with the output shaft in the state of motion of the piston, primarily depending on its mass moment of inertia and the internal forces provided by the powering chamber, this piston is disposed in, and movable in the powering chamber, for accumulating a substantial portion of the internal energy in the powering chamber as kinetic energy in conjunction with its mass moment of inertia, such transfer of energy causing the temperature and pressure in the powering chamber to be drastically reduced, therefore lowering the rate of loss of heat to the walls; a second chamber, in tandem with the powering chamber, so that the second chamber is being compressed as the powering chamber is being expanded, whereby the kinetic energy accumulated on the ballistic piston is being converted into potential energy temporarily stored in the second chamber; means of interaction between
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: September 18, 1979
    Inventor: George J. Doundoulakis
  • Patent number: 3989012
    Abstract: This is a continuation-in-part to a previous patent application now pending entitled Two-Rotor Engine, Ser. No. 542,250. In accord with said patent pending, the present invention also involves an engine comprising a cavity of genus 1 generated by the revolution of a rectangle about an axis. Two sets of diaphragms with n diaphragms in each set are alternated inside the cavity of revolution, separating the cavity in 2n chambers, the volume of n chambers increasing while the volume of the other n chambers is decreasing when the two sets of diaphragms are forced to rotate with respect to each other. In the present invention, one set of diaphragms is attached to a center rotor, the other set being attached to a side rotor. While in the Two-Rotor Engine, the two sets of diaphragms are attached to the two side rotors which, in turn, are connected to the two side gears of a differential assembly. The changing of volume of chambers is used to execute complex thermodynamic cycles.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: November 2, 1976
    Assignees: William J. Casey, Helias Doundoulakis
    Inventor: George J. Doundoulakis
  • Patent number: 3985110
    Abstract: A multi-stroke engine for converting energy into torque is described including two rotors and a housing along surfaces of revolution of genus 1 about same axis. In the preferred configuration a cavity of revolution is used, generated by the revolution of a rectangle about the axis, two sides of the rectangle being parallel to the axis; one half of the cylindrical surface generated by the side nearest the axis is allocated to each rotor, while the surface generated by the other three sides of the rectangle is allocated to the housing. n substantially similar diaphragms having azimouthal thickness substantially equal to 90/n.degree. extend from each rotor at azimouthal angles 360/n across the cavity of revolution and are interleaved with the diaphragms of the other rotor so that the diaphragms divide the cavity of revolution in 2n chambers the volume of half of the chambers increasing while the volume of the others is equally decreasing as the rotors are pressured to rotate with respect to each other.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: October 12, 1976
    Assignees: William J. Casey, Helias Doundoulakis
    Inventor: George J. Doundoulakis