Patents Assigned to Ametek
  • Patent number: 4444054
    Abstract: A system for extending the temperature range over which diffused semiconductor strain sensing devices specifically can be used includes a semiconductor chip having a base material and a semiconductor device formed in the base material. Biasing potential is applied to the base material and excitation potential applied to the diffused device. The biasing potential and the excitation potential are selected relative to one another to permit a predetermined variation in the semiconductor device characteristic with temperature over an extended temperature range. In the semiconductor strain sensing application, this predetermined characteristic is the impedance of the device. In this way, compensation for the variation of the characteristic can be applied to extend the useful temperature range for the semiconductor device.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: April 24, 1984
    Assignee: Ametek, Inc.
    Inventor: Alfred Schaff, Jr.
  • Patent number: 4416162
    Abstract: A gram beam force gauge has a housing having a peripheral wall and a partition with a front face and a rear face substantially perpendicular to the peripheral wall. A pointer overlies a dial mounted on the front face of the partition and is mounted on a rotatable shaft passing through the partition. A pinion on the shaft to the rear of the partition engages a sector gear mounted on a drum which in turn is rotatably mounted adjacent the rear face of the partition on an axis parallel to the axis of the pinion. A flexible band passes around the drum and has each free end connected to one end of an extension coil spring. The first spring has its outer end secured to the housing and the second spring has its other end secured to a slide for preloading the springs and zero adjusting the pointer. A force transmitting beam is secured to the drum and extends beyond the housing. Advantageously, the slide is a slotted block retained by a headed screw secured to the partition.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: November 22, 1983
    Assignee: Ametek, Inc.
    Inventors: Alfred L. Lea, Frank A. Votta, Jr.
  • Patent number: 4411158
    Abstract: An apparatus for sensing the condition of a pressurized fluid including a semiconductor chip having a diaphragm portion adapted for exposure to the pressurized fluid and an adjacent terminal portion adapted for connection to external circuitry for providing a measurement of the condition of the fluid. The semiconductor chip has sensing elements formed within the diaphragm portion and conductor elements in electrical contact with the sensing elements formed within and extending from the diaphragm portion to the terminal portion. A fluid barrier is provided for isolating the diaphragm portion from the terminal portion to prevent the terminal portion from being exposed to the pressurized fluid, while permitting pressurized fluid to contact the diaphragm portion so that the condition of the pressurized fluid can be sensed.
    Type: Grant
    Filed: April 14, 1981
    Date of Patent: October 25, 1983
    Assignee: Ametek, Inc.
    Inventor: Alfred Schaff, Jr.
  • Patent number: 4409372
    Abstract: Improved paint brush bristles and provided from a blend of nylon 6/6 or nylon 6/12, together with between 4-15%, depending upon the shape and size of the filament, of a co-polyester derived from terephthalic and isophthalic acids with cyclohexane dimethanol.
    Type: Grant
    Filed: January 20, 1982
    Date of Patent: October 11, 1983
    Assignee: Ametek, Inc.
    Inventors: John Ward, Robert E. Austin
  • Patent number: 4376746
    Abstract: Improved paint brush bristles formed of synthetic materials are hollow and tapered with a central axial hollow. The tapered hollow bristles are characterized by their consistent wall thickness, i.e., ratio of cross-sectional hollow area to cross-sectional wall area remains consistent from one end of the bristle to the other; and by their consistency in neck-down location.
    Type: Grant
    Filed: September 17, 1981
    Date of Patent: March 15, 1983
    Assignee: Ametek, Inc.
    Inventors: John Ward, Robert Austin, Anthony Genovese
  • Patent number: 4361134
    Abstract: Solar energy collector assembly including a solar energy collector in an enclosed space housing with bottom closure member secured by a snap-fit spring channel and low thermal conductivity mating projection therefor, a collector member securing means comprising a plurality of stiff low thermal conductivity wire retainers and top cover securing and sealing means comprising a seal and clamp engaging the top cover just inward of its periphery, to prevent intrusion of condensate in the enclosed space of the housing.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: November 30, 1982
    Assignee: Ametek, Inc.
    Inventor: John C. Bowen
  • Patent number: 4351734
    Abstract: A method of treating liquid waste with ozone by passing the liquid to be treated between complementary horizontal electrodes having therebetween electrically conductive particles so as to form an electrode bed, pulsing air simultaneously with said liquid, and maintaining between said electrodes an electrical potential so that as the air and liquid pass through said electrode bed, the bed expands to establish electrical contact between the electrodes thus to create localized arcing between particles in the bed and to form ozone.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: September 28, 1982
    Assignee: Ametek, Inc.
    Inventor: Gilbert Kauffman
  • Patent number: 4345107
    Abstract: Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a conductive substrate, preferbaly comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate. The cell further includes a rectifying barrier layer which may be a Schottky barrier. The film is electrodeposited on the substrate surface and the substrate materials and electrodeposition conditions are controlled so as to produce a substantially stoichiometric deposit. Preferably, the film or cell is subsequently treated to enhance its efficiency.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: August 17, 1982
    Assignee: Ametek, Inc.
    Inventors: Gabor F. Fulop, Jacob F. Betz, Peter V. Meyers, Mitchell E. Doty
  • Patent number: 4343700
    Abstract: A filtration assembly including a perforate basket, screen and filtration media is provided with bands of complementary releasable attachment means along mating surfaces. The complementary releasable attachment means permit the backing screen and filtration media to be installed in and removed from the perforate basket simply without tools, while retaining the backing screen and filtration media in proper alignment with the perforate basket during the filtration process.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: August 10, 1982
    Assignee: Ametek, Inc.
    Inventors: Edward A. Daubman, William G. Owler, Jr.
  • Patent number: 4341200
    Abstract: Improved solar collector sub-assemblies and combinations thereof includes corner-locking piece sub-assemblies, top glazing clamping member sub-assembly, collector plate mounting member sub-assembly and collector assembly mounting means, all adapted to facilitate assembly and installation of collectors in accordance with the present invention and to permit thermal expansion of components thereof.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: July 27, 1982
    Assignee: Ametek, Inc.
    Inventor: John C. Bowen
  • Patent number: 4307478
    Abstract: Improved paint brush bristles formed of synthetic materials are hollow and tapered with a central axial hollow. The tapered hollow bristles are characterized by their consistent wall thickness, i.e., ratio of cross-sectional hollow area to cross-sectional wall area remains consistent from one end of the bristle to the other; and by their consistency in neck-down location.
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: December 29, 1981
    Assignee: Ametek Inc.
    Inventors: John Ward, Robert Austin, Anthony Genovese
  • Patent number: 4300665
    Abstract: A switch device is used in a self-retracting cord reel having a housing, a rotating drum, and an electrical cord having a portion thereof wound on the drum, a spring motor for rewinding the cord on the drum, a ratchet, a pawl having a first stop position for engaging the ratchet to stop the reel from rewinding the cord and a second position permitting the reel to rewind the cord, the positioning of the pawl being controlled by the movement of the reel with the cord. A switch is secured to the drum in circuit with the cord and is biased to one of its two positions. Switch operating mechanism is adapted to be moved by the pawl for placing the switch in the other position when the pawl is in its stop position.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: November 17, 1981
    Assignee: Ametek, Inc.
    Inventor: John C. Arechaga
  • Patent number: 4300534
    Abstract: The invention relates to solar collectors which transfer thermal energy from a collector to a point of use by means of a heat exchange fluid. An array of collectors may be provided having a modified system to facilitate convenient assembly into an array and to provide balanced fluid flow across the array. The outlet conduit sized to insure the steady flow of fluid and air thus preventing the accumulation of air to the outlet to block fluid flow.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: November 17, 1981
    Assignee: Ametek, Inc.
    Inventor: John C. Bowen
  • Patent number: 4278070
    Abstract: Solar energy collector assembly including a solar energy collector in an enclosed space housing with bottom closure member secured by a snap-fit spring channel and low thermal conductivity mating projection therefor, a collector member securing means comprising a plurality of stiff low thermal conductivity wire retainers and top cover securing and sealing means comprising a seal and clamp engaging the top cover just inward of its periphery, to prevent intrusion of condensate in the enclosed space of the housing.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: July 14, 1981
    Assignee: Ametek, Inc.
    Inventor: John C. Bowen
  • Patent number: 4261802
    Abstract: Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a smooth conductive substrate, preferably comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate, the cell further including a rectifying barrier layer. Preferably, the film is electrodeposited on the substrate surface with specific materials and process conditions. Preferably also, the film or cell is subsequently treated to enhance its barrier layer interface function.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: April 14, 1981
    Assignee: Ametek, Inc.
    Inventors: Gabor F. Fulop, Jacob F. Betz, Peter V. Meyers, Mitchell E. Doty
  • Patent number: 4260427
    Abstract: Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a smooth conductive substrate, preferably comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate, the cell further including a rectifying barrier layer. Preferably, the film is electrodeposited on the substrate surface with specific materials and process conditions. Preferably also, the film or cell is subsequently treated to enhance its barrier layer interface function.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: April 7, 1981
    Assignee: Ametek, Inc.
    Inventors: Gabor F. Fulop, Jacob F. Betz, Peter V. Meyers, Mitchell E. Doty
  • Patent number: 4226575
    Abstract: A motor-fan unit for a wet pick-up type of vacuum cleaner comprising a fan-section and a separately ventilated motor section. A motor-end bracket in the motor housing structure serves as a common end wall with the fan section and carries a bearing for the common shaft of the motor and fan. A baffle carried by the motor-end bracket within the fan section has an apertured central portion, at least partly enclosing the bearing, to provide a passage-way for high velocity air sealing the bearing from detergent-containing cleaning liquid entrained in working air drawn into the fan section. A normally closed check valve at an inlet to the sealing air passageway inhibits back-flow of either air or liquid through the inlet but permits such sealing air to serve as cooling air when the entrance of working air into the fan section is impeded.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: October 7, 1980
    Assignee: Ametek, Inc.
    Inventors: Robert L. Hyatt, Norbert H. Niessner, Richard D. Sumser
  • Patent number: 4206643
    Abstract: A flow meter is disclosed which is capable of providing a running total of the volume of fluid passing through a tube. The meter includes a vane which is moved along a path to a position corresponding to the rate of the fluid flow through the tube. A sensor is cyclically moved relative to the vane path to produce a pulse signal which is processed to obtain the total fluid volume.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: June 10, 1980
    Assignee: Ametek, Inc.
    Inventors: Harold H. Phillips, Milton Mollick
  • Patent number: 4202320
    Abstract: An improved solar energy collector assembly with a multiple glazed outer face, a flat collector member and an insulated bottom and side enclosure is provided with significantly enhanced thermal efficiency due to the mounting of the heat collector member and one or more inner glazing or transparent sheets in a manner to minimize conductive heat losses from this part of the assembly to the remainder of the assembly.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: May 13, 1980
    Assignee: Ametek, Inc.
    Inventor: John C. Bowen
  • Patent number: 4201190
    Abstract: Solar energy collector assembly including a solar energy collector in an enclosed space housing with bottom closure member secured by a snap-fit spring channel and low thermal conductivity mating projection therefor, a collector member securing means comprising a plurality of stiff low thermal conductivity wire retainers and top cover securing and sealing means comprising a seal and clamp engaging the top cover just inward of its periphery, to prevent intrusion of condensate in the enclosed space of the housing.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: May 6, 1980
    Assignee: Ametek, Inc.
    Inventor: John C. Bowen