Patents Represented by Attorney Gary V. Pack
  • Patent number: 4079243
    Abstract: A light fixture of the type enclosing a plurality of standard dry cells. An outer, support member forms an outer housing to be affixed to a wall, ceiling or other fixed object. The outer housing receives an inner housing comprising a unitary battery enclosure, reflector and lamp socket receptacle. A sheet of resilient foam material disposed between the outer and inner housings is compressed upon assembly of the two members and urges them apart to aid in separating the members when latches are released. A dome-shaped lens attaches to the inner housing to protect the lamp and to diffuse the light which it produces.The enclosures for the batteries which are formed by the inner housing are provided with partitions separating the batteries, and upstanding bosses about certain of the contacts therefor, to prevent completion of an electrical circuit should any of the cells be reversed during installation.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: March 14, 1978
    Assignee: ESB Incorporated
    Inventor: Whitley Pemberton
  • Patent number: 4078127
    Abstract: An alkaline battery having a divalent silver oxide (AgO) positive active material (cathode) in which a sulfide additive is incorporated into the alkaline electrolyte on the positive side of the battery separator or barrier or is added to the positive active material is provided. The sulfide additive improves the stability of the divalent silver oxide (AgO) active material in the aqueous alkaline electrolyte without adversely affecting the electrochemical reaction during the discharge of the battery. The additive consists of a sulfide of cadmium, calcium, mercury, tin, tungsten, or mixtures thereof.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: March 7, 1978
    Assignee: ESB Incorporated
    Inventors: El Sayed Megahed, Carol Buelow
  • Patent number: 4074720
    Abstract: A cardiac pacer having an improved oscillator circuit therein which provides rate runaway protection in the event of circuit malfunction. The oscillator establishes the normal operating rate of the pacer and limits the pacer operating rate to a predetermined rate which, while above the normal pacer operating rate, is still considered to be a safe pacer operating rate.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: February 21, 1978
    Assignee: ESB Incorporated
    Inventors: Franklin L. Malchman, William J. Raddi, Susan Sharples
  • Patent number: 4075398
    Abstract: The mouth of a tubular cell envelope is closed by compressing into it an end cap formed of a resilient plastic exhibiting a low creep characteristic. An elongate terminal is inserted through the end cap and into the cell interior, and a vent passage is formed in the cap at a location between the electrode and the cap edge. In one embodiment a plug is placed in the passageway before assembly of the end cap into the envelope such that the radial compression of the end cap by the surrounding envelope clenches the plug more tightly in the passageway. In a preferred embodiment, the plug is formed with a hollow core and the outer end of the passageway is counterbored or chamfered to allow the plug to be blown clear of the passageway by undesirably high pressure generated within the cell.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: February 21, 1978
    Assignee: ESB Incorporated
    Inventor: Isaac I. Levy
  • Patent number: 4072799
    Abstract: A vent system for an electric storage battery designed to remove the electrolyte which is entrained in the gases that are vented from the particular battery cell to the atmosphere through the vent plug assembly. The liquid gas separation feature has a primary inlet on the sidewall of the vent plug at its uppermost position that still remains in the battery cell, a drain opening in the lowermost portion of the vent plug, and baffles arranged inside the vent plug assembly such that the fluid entering the primary inlet flows in a horizontal direction and is scrubbed to remove the electrolyte. The electrolyte is then collected and returns to the cell through the drain opening while the scrubbed gases eventually reach the atmosphere. The liquid gas separation system can be used in a vent plug having a low profile for use on maintenance free batteries as well as on non-maintenance free batteries.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: February 7, 1978
    Assignee: ESB Incorporated
    Inventors: Jeffrey S. Leeson, Joseph F. Szabo
  • Patent number: 4071661
    Abstract: A process is described for repairing secondary batteries which have defective seals. The process of repair can be performed safely while the battery is in operation.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: January 31, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Stanley M. Davis
  • Patent number: 4070528
    Abstract: An improved battery having an electrolyte permeable porous inherently sealable separator and intercell connector both extending beyond the periphery of the cell electrodes. A polymeric film material separator seals the intercell connector. The separators may extend beyond the intercell connectors and are sealed to adjacent separators.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: January 24, 1978
    Assignee: ESB Incorporated
    Inventors: Bernard C. Bergum, Walter Lee Fong
  • Patent number: 4048523
    Abstract: An electronic filter having active components for eliminating A.C. signals, and for producing constant D.C. voltage at its output, wherein the filter can be effectively used between the D.C. power supply and the B+ terminal for an audio amplifier, especially one having vacuum tubes for its major active elements. The electronic filter monitors its output voltage to control the conductivity of a transistor which maintains the output voltage constant. Bias current and voltage requirements for the filter elements are generated internally from the filter input, and are also referenced to the filter output to provide a constant D.C. output over load variations.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: September 13, 1977
    Assignee: Paoli High Fidelity Consultants Inc.
    Inventor: Joseph John Curcio
  • Patent number: 4048405
    Abstract: A high drain rate, primary alkaline cell comprising a negative electrode, a divalent silver oxide (AgO)/monovalent silver oxide (Ag.sub.2 O) depolarizer blend, a separator between said negative electrode and depolarizer blend, and an alkaline electrolyte consisting essentially of potassium hydroxide. The surface of the depolarizer blend adjacent to the separator is coated with a layer of silver. The reduced surface layer of the depolarizer provides improved stability of the depolarizer blend in the alkaline electrolyte, and it provides the cell with a single voltage plateau during discharge. The cell is characterized by a maximum open circuit voltage of about 1.75 volts. The surface of the depolarizer blend can be reduced to form the silver layer either prior to being placed in the cell container or after the blend is consolidated in the container.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: September 13, 1977
    Assignee: ESB Incorporated
    Inventor: El Sayed Megahed
  • Patent number: 4035556
    Abstract: A unique alloy comprising lead with small additions of zinc and tin is used to make grids for lead acid cells. The alloy as produced is softer than is desirable. It is hardened by mechanical working. When properly worked, it has a strength and stiffness approaching that of other low alloy lead materials currently in use as storage battery grids.
    Type: Grant
    Filed: April 7, 1972
    Date of Patent: July 12, 1977
    Assignee: ESB Incorporated
    Inventors: Joseph C. Duddy, Edward R. Hein
  • Patent number: 4011897
    Abstract: A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled and an interlock system located in conjunction with the latching collar on the discharge spout of the nozzle, for preventing the dispensing of gasoline until the discharge spout is inserted into the vehicle fillpipe. The interlock system includes a valve mounted in the discharge spout in such a manner that it is actuated by the weight of the nozzle resting upon the fillpipe inlet. The valve is interconnected with the automatic shut-off system of the nozzle so that when the valve is in its open position, signifying that the nozzle is properly inserted in the fillpipe, dispensing of gasoline is permitted.
    Type: Grant
    Filed: November 25, 1975
    Date of Patent: March 15, 1977
    Assignee: Suntech, Inc.
    Inventor: William B. Hansel
  • Patent number: 4009833
    Abstract: Lead-acid storage battery plates damaged during battery manufacture are placed in a trough having an upward slope. The trough is vibrated causing the non-metallic components of the plates to be shaken free from the metallic components of the plates with the non-metallic components being reduced in size during the vibration process. The non-metallic components of the plates are discharged from the trough as a fine powder through suitable openings in the bottom of the trough while the metallic components climb the trough and are discharged at the upper end of the trough.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: March 1, 1977
    Assignee: ESB Incorporated
    Inventors: Terry D. Litt, Richard C. Shelton, Earl J. Colwell
  • Patent number: 4009056
    Abstract: A primary alkaline cell having a stable divalent silver oxide depolarizer mix comprising a negative electrode (anode), a divalent silver oxide (AgO) depolarizer mix, a separator between said negative electrode and depolarizer mix, and an alkaline electrolyte. The surface of the depolarizer mix is treated with a mild reducing solution to form a reduced layer surrounding the mix, and the surface of the reduced layer adjacent to the separator is coated with a layer of silver. The reduced layer surrounding the depolarizer mix in combination with the layer of silver provides improved stability of the depolarizer mix in the alkaline electrolyte and a single voltage plateau during discharge of the cell. The primary alkaline cell is characterized by a maximum open circuit voltage of about 1.75 volts.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: February 22, 1977
    Assignee: ESB Incorporated
    Inventors: El Sayed Megahed, Carol Ruth Buelow, Patrick Joseph Spellman
  • Patent number: 4007759
    Abstract: A pressure stabilizer for use in hydrocarbon storage facilities which acts as an orifice and also permits the pressure in the system to be stabilized when it reaches a given amount. The stabilizer has a casing with a valve seat and a heavy ball located above the valve seat so that the ball is forcibly displaced upwards when the pressure in the hydrocarbon storage facility reaches an amount sufficient to lift the weight of the ball. Support members extending from the side of the valve seat suspend the ball away from the valve seat a sufficient distance to form the appropriate sized orifice and to minimize contact of the ball to the casing so that the possibility of the stabilizer being frozen closed is minimized.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: February 15, 1977
    Assignee: Sun Oil Company of Pennsylvania
    Inventors: William R. Martin, Stewart W. Nystrom
  • Patent number: 3998702
    Abstract: An apparatus in which bituminous froth is concurrently heated and deaerated while flowing by gravity from one zone to another.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: December 21, 1976
    Assignee: Great Canadian Oil Sands Limited
    Inventor: Sam Kwame Opoku
  • Patent number: 3996975
    Abstract: A system for automatically releasing the pressure built up inside a tank when the liquid level falls below a predetermined level. This system is particularly applicable for use on a hydrocarbon tank truck which receives the vapors from the underground tank being filled, so that the pressure built up during filling can be released into the atmosphere through a filter in order to minimize the hydrocarbons released into the atmosphere when the connections to the underground tank are uncoupled. The system includes a pressure relief line connected to a float valve located inside a tank compartment on one end and to a filter on the other end. The filter can be made out of an adsorbant material which permits it to be cleaned and used over again.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: December 14, 1976
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: William B. Hansel
  • Patent number: 3997826
    Abstract: A valve operator circuit normally operates to compare the pulse rates of two trains of pulses and to step an associated valve open or closed depending on which of the two pulse rates is the higher. The circuit includes a manually-operated presetting arrangement which, when operated, causes the normal pulses to be inhibited from moving the valve, and causes the valve to move to a desired position.
    Type: Grant
    Filed: January 2, 1975
    Date of Patent: December 14, 1976
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: Robert Mayer
  • Patent number: 3996919
    Abstract: A system for collecting and storing solar energy which includes solar panels which are installed between the joists of the roof so that the collector surface of each panel acts as part of the roof of each panel, and also includes a heat storage system connected to the back side of each panel. Each heat storage system has a plurality of heat storage cylinders containing a phase change, heat storage mixture and a heat pipe for conducting the heat collected by the collector surface to the heat storage material. The containers of heat storage material extend into ductwork connected to a conventional forced air heating system so that the air is heated when it is circulated around the heat storage cylinders. The heat storage system can be used with a flat solar collector surface as well as with a parabolic reflector for focusing sunlight on the end of the heat pipe.
    Type: Grant
    Filed: November 21, 1975
    Date of Patent: December 14, 1976
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: Peter S. Hepp
  • Patent number: 3996976
    Abstract: A manifold system for use in an underground hydrocarbon storage system is disclosed. The vent lines from each individual tank are connected to the manifold, and one manifold vent line extends from the manifold to a point above the surface level. A vapor return line from the manifold to a surface location for connection to a tank truck can be provided to recover the vapors displaced when the underground tanks are filled. The manifold design features a removable top for access to the float valves, thereby eliminating the need for excavation down to the manifold for maintenance. Also included in the manifold design is a feature which prevents the contamination of the unleaded gasoline by leaded gasoline.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: December 14, 1976
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: William B. Hansel
  • Patent number: 3990885
    Abstract: A method for removing bitumen from mineral particles recovered from bituminous froth recovered as a product of aqueous extraction of tar sands which method comprises scrubbing the minerals with a liquid hydrocarbon solvent containing at least 10 weight percent aromatics and thereafter separating the minerals from the solvent and subsequently drying the minerals.
    Type: Grant
    Filed: September 10, 1974
    Date of Patent: November 9, 1976
    Assignee: Great Canadian Oil Sands Limited
    Inventors: Robert A. Baillie, Lawrence F. Schmoyer, Thomas E. Skarada