Patents Represented by Attorney Burton E. Levin
  • Patent number: 4943992
    Abstract: Apparatus is described for immobilizing a child and shielding its gonads during X-ray examination. The child is held on the upper surface of an X-ray transparent horizontal platform with its legs straddling a vertical post bearing a laterally extending lead shield. The lead shield is both vertically and horizontally positionable so as to permit precise and close spacing above the child's body. The lower surface of the child supporting platform is flanged to provide a frame which retains an X-ray film cassette and minimizes blurring resulting from the child's movement. A gonadal shield assembly which is suitable for both male and female children has a generally triangular sheet of lead mounted on a rotatable X-ray transparent plate which is supported by an X-ray transparent arm extending laterally from the post.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: July 24, 1990
    Inventor: Joseph F. Caccavo
  • Patent number: 4762424
    Abstract: Low temperature dilatometers are described which employ a combination cryostat/furnace made from an elongated block of metal by drilling separate longitudinal tubular chambers for insertion of a specimen tube containing a specimen and at least one electric resistance heater. A separate longitudinally drilled tubular cooling chamber serves as the expansion chamber for a conventional compressed gas refrigeration system, one end of the cooling chamber communicating with the inlet of the refrigerant gas compressor and the other end communicating, through an intermediate heat exchanger, with the outlet of the compressor. The metal construction of the cryostat/furnace and the absence of a conventional ceramic protection tube for the specimen facilitates rapid heat transfer to and from the specimen. The specimen can be brought quickly to the minimum desired temperature by operating the refrigeration system until that temperature is reached and then shutting off the compressor.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: August 9, 1988
    Assignee: Theta Industries, Inc.
    Inventors: Thomas A. Baricevac, Karl-Heinz Raffalski
  • Patent number: 4739796
    Abstract: Fluid flow diverter apparatus is described for reversing the direction of fluid flow through a process loop, such as a bundle of heat exchange tubes in an air conditioning system. The apparatus utilizes a housing enclosing a rotary valve in which the diverter disk seats in two positions against generally U-shape seating frames that can be repositioned to compensate for erosion or other distortion of the seating surfaces on the frames and disk. The seating frames comprise a plurality of seating bars, each of which is adjustably fastened to the interior of the valve casing by at least one threaded fastener that extends through a transverse slot in the bar and engages the casing. All seating surfaces preferably are coated with a resilient material, such as rubber.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: April 26, 1988
    Assignee: Water Services of America, Inc.
    Inventors: Paul J. Harding, K. Peter Koch
  • Patent number: 4687343
    Abstract: Deformation dilatometers are described for heating, deforming and cooling a test specimen, as well as for measuring changes in the linear dimensions of that specimen. A ferrous metal specimen, that is held between a fixed and a movable fused silica or quartz platen, first is heated by a high frequency induction coil and then crushed by the application of a hydraulic force to the movable platen. The hydraulic force then is withdrawn and, as the specimen is cooled by a jet of quenching gas, changes in its linear dimension are measured by a linear variable differential transformer which is coupled through ceramic pushrods to the platens. Use of fused silica or quartz platens in deformation dilatometers permits the accurate simulation of steel mill forging and rolling operations and enhances the usefulness of the instruments for studying phase changes in steel and determining optimum heating and quenching rates.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: August 18, 1987
    Assignee: Theta Industries, Inc.
    Inventor: Karl-Heinz Raffalski
  • Patent number: 4667732
    Abstract: Apparatus is disclosed which is attached to the ends of a heat exchanger tube to capture a tube cleaning brush or sponge that has been propelled back and forth through the tube by reversing the direction of flow of the circulating cooling fluid. The apparatus includes a tubular synthetic polymer cage with perforated walls which receives the expelled cleaning element and holds it in alignment with the tube and a tandemly positioned tubular synthetic polymer adapter which is bonded at one end to an open end of the tube and which functions as a conduit for the movement of the cooling fluid and cleaning element between the tube and cage. The adapter and cage are coupled through lockable mating open ends which permit the cage to be removed manually and non-destructively, thereby providing fast and unobstructed access to the interior of the tube by test probes. A particularly secure coupling also is disclosed in which these mating open ends are the male and female elements of a snap fastener.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: May 26, 1987
    Inventors: Paul J. Harding, K. Peter Koch
  • Patent number: 4636090
    Abstract: Low temperature dilatometers are described which employ a combination cryostat/furnace made from an elongated block of metal by drilling separate longitudinal tubular chambers for insertion of a specimen tube containing a specimen and at least one electric resistance heater. A separate longitudinally drilled tubular cooling chamber serves as the expansion chamber for a conventional compressed gas refrigeration system, one end of the cooling chamber communicating with the inlet of the refrigerant gas compressor and the other end communicating, through an intermediate heat exchanger, with the outlet of the compressor. The metal construction of the cryostat/furnace and the absence of a conventional ceramic protection tube for the specimen facilitates rapid heat transfer to and from the specimen. The specimen can be brought quickly to the minimum desired temperature by operating the refrigeration system until that temperature is reached and then shutting off the compressor.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: January 13, 1987
    Assignee: Theta Industries, Inc.
    Inventors: Thomas A. Baricevac, Karl-Heinz Raffalski
  • Patent number: 4618274
    Abstract: Dilatometers in which the dilation sensor, pushrod or rods and the specimen holder all are enclosed within a unitary hermetically sealed housing, including an elongated protective tube for the portion of the specimen holder that is inserted in an electric tube furnace. The housing, which is compact and can be evacuated and flushed with an inert or reducing gas to protect its contents from oxidation, can easily and quickly be withdrawn as a unit from a stationary or unopened furnace to facilitate the rapid installation of similar housings having specialized sensors or tubular enclosures designed for different applications. The sensor, push rod and specimen holder also can be readily removed as a unit from the housing, which permits rapid specimen changes without the necessity of withdrawing the protective tube from the furnace or realigning it after reinsertion. A dilation sensor also is described which utilizes a calibrating micrometer positioned abreast of a linear variable differential transformer.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: October 21, 1986
    Inventor: Gerhard R. Clusener
  • Patent number: 4548515
    Abstract: Dilatometers are described which employ measuring heads having multiple linear variable differential transformer dilation sensors for concurrently measuring the thermal dilation of multiple specimens within a single conventional electric tube furnace. The sensors, which have their cores coupled to calibrating micrometers, are positioned in a closely separated cluster in which each sensor is parallel, abreast and adjacent to each other. Separate parallel pushrods, which abut separate specimens within a common tubular specimen holder, are attached to the axially mobile coil of each sensor at the point closest to the center of the cluster. The resulting close separation of the parallel pushrods and their specimens within a small diameter specimen holder permits the use of an energy efficient electric tube furnace having a small diameter oriface and facilitates uniform heating of the pushrods and specimens.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: October 22, 1985
    Inventor: Gerhard R. Clusener
  • Patent number: 4521119
    Abstract: Differential dilatometers are described which employ a linear variable differential transformer dilation sensor in which the core and/or coil is independently supported to accommodate the imposition of a constant load on a specimen abutting a pushrod coupled to that transformer element. The independent support system has at least one collar that slidably enages a mating extension of the supported transformer element, thereby permitting long range axial movement of that element while rigidly restricting lateral movement. The collar which thus holds the supported transformer element may be tilted by an adjustable clamp on at least one plant parallel to the path of axial movement of that element, thereby facilitating alignment adjustment.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: June 4, 1985
    Assignee: Theta Industries, Inc.
    Inventors: Anthony C. Stepke, Gerhard R. Clusener
  • Patent number: 4503047
    Abstract: The invention relates to a hair growth stimulating composition with improved properties, which contains horse radish extract in an aqueous-alcoholic solution optionally together with additives commonly applied in the preparation of hair growth stimulating agents. The composition according to the invention contains, beside the above ingredients 8 to 2000 mg/l, preferably 35 to 100 mg/l, of allyl isothiocyanate and 600 to 6000 mg/l, preferably 1100 to 2200 mg/l, of one or more sulfur-containing amino acid(s), and optionally up to 160 mg/l, preferably 1.5 to 6 mg/l, of copper(II) ions and up to 28 mg/l, preferably 1 to 5 mg/l, of rhodanide ions.The invention also relates to a process for the preparation of the above composition.The composition according to the invention is devoid of the disadvantage of B/a/ nfi hair-lotion, since it does not make the hair tacky, does not render the scale sensitive to ultraviolet radiation, and has no unpleasant smell.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: March 5, 1985
    Assignee: Licencia Tal/a/ lm/a/ nyokat /E/ rt/e/ kesit/o/ V/a/ llalat
    Inventors: Andr/a/ s B/a/ nfi, J/a/ nos Leibinger, L/a/ szl/o/ Moln/a/ r, Gizella N/a/ dori n/e/ e Kozel, S/a/ ndor Tar
  • Patent number: 4322989
    Abstract: An improved power operated gear-driven box wrench is described in which a tool module containing the work engaging ring gear and both its drive gear and drive shaft can readily be slipped on or off a separate power module containing a motor and drive shaft. Rotational coupling of the tool module drive shaft and that on the power module is accomplished through slideable engageable couplers which are keyed to rotationally lock the drive shafts together. The tool module and the power module also are slideably engaged through coupling collars which are keyed to prevent independent rotation. The ease of changing the tool module permits the operator to select a work engaging gear ring that fits the work without the use of a compensating socket, thus minimizing the work clearance required for use of the wrench.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: April 6, 1982
    Inventor: Joseph J. Garolis
  • Patent number: 4304380
    Abstract: An improved stand is described for supporting the scientific instrument and accessories, such as a dilatometer and electric furnace, comprising a box base and an upright inverted U or box frame. Means also are described for varying the point of attachment and angle of the upright frame to the base. The upright frame may be equipped with the variety of instruments support brackets, including telescoping slides, which are extendable beyond the frame and which permit the frame to be used alone in a horizontal position or attached to the base in an upright position.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: December 8, 1981
    Inventor: Gerhard R. Clusener
  • Patent number: 4286142
    Abstract: An improved electric tube furnace is described in which a compressible leaf-spring attachment between the heating element tube and at least one of its supporting electric terminals compensates for linear thermal expansion of the tube without restricting access to the interior of the tube. The use of such furnace in an evacuated atmosphere for high temperature thermal diffusivity measurements is shown.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: August 25, 1981
    Assignee: Theta Industries, Inc.
    Inventor: Raymond E. Taylor
  • Patent number: D261194
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: October 6, 1981
    Assignee: Cities Service Company
    Inventor: Theodor M. Box