Patents by Inventor John M. Ferrara

John M. Ferrara 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).

  • Patent number: 4767554
    Abstract: A concentrate of the type useful for preparing an oil-in-water emulsion lubricant used in the drawing and ironing of ferrous and non-ferrous metals comprising:______________________________________ Ingredient % by Weight ______________________________________ A carboxylic acid ester from the 60-90 group consisting of: (a) Dibasic acid having at least 70% by weight of its carboxylic acid groups esterified with a C.sub.4 -C.sub.30 mohydric alcohol (b) A C.sub.8 -C.sub.22 mono carboxylic acid ester of a polyhydric alcohol. Water-in-oil emulsifying agent, .5-30 Polyglycol co-emulsifier 2-4 Phosphate corrosion inhibitor 0.5-2 Copper corrosion inhibitor 0.2-1 Thickener 0-10 ______________________________________the improvement which comprises said composition having an Iodine number not greater than 5.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: August 30, 1988
    Assignee: Nalco Chemical Company
    Inventors: John T. Malito, Richard D. Wintermute, Scott F. Ross, John M. Ferrara
  • Patent number: 4441888
    Abstract: An improved coal-water slurry of the type comprising at least 45% by weight of finely divided coal particles and a dispersing agent, said slurry being characterized as having a Brookfield viscosity at 60 rpm of less than 4,000 centipoise, the improvement which comprises adjusting the pH of said slurry to at least 6 and using as the dispersing agent, a water-soluble salt of an olefin/maleic acid copolymer having a molecular weight within the range of about between 3,000-50,000.
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: April 10, 1984
    Assignee: Nalco Chemical Company
    Inventors: Joseph Matt, John M. Ferrara
  • Patent number: 4034794
    Abstract: A novel mold coating comprising humic acid, and/or humic acid salts, and graphite in a liquid suspension containing organic bonding agents is disclosed as well as a method of forming ingots in which molten steel is poured into molds which are covered by the coating.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: July 12, 1977
    Assignee: Nalco Chemical Company
    Inventors: Kenneth A. Gebler, John M. Ferrara, Joseph V. Grothaus
  • Patent number: 4025923
    Abstract: A circuit which allows the operation of a VOR receiver in the presence of unwanted interference signals without sacrificing a fast response to omnirange bearing selector changes. A switching-type synchronous filter is used to filter the 30 Hz AM channel signal in the receiver. The narrow bandwidth of this synchronous filter rejects unwanted interference signals without introducing phase shift into the desired signal. The switching signal for the synchronous filter is generated by the FM channel in such a manner that the switching filter center frequency follows the input frequency. The use of a synchronous filter allows rejection of interfering AM signals that lie outside a narrow pass band, while allowing the receiver to follow variations in frequency of the transmitted signal.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: May 24, 1977
    Assignee: Narco Scientific Industries, Inc.
    Inventors: John M. Ferrara, Frank Patterson Smith, 2nd
  • Patent number: 4011503
    Abstract: A known reference signal is applied to a zero crossing detector and normal and inverted outputs from the zero crossing detector are applied to the input control terminals of a pair of bilateral switches. A measured signal of the same frequency but not necessarily of the same phase is simultaneously applied to the input terminals of the bilateral switches. The resultant output of the bilateral switches is connected to a parallel RC network. The capacitor acquires a charge proportional to the deviation from, which is applied to a differential amplifier. The output of the differential amplifier is used to drive a meter which indicates the phase relationship of the two signals. The capacitor used to accumulate the net charge is ungrounded to eliminate errors resulting from unequal currents to ground.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: March 8, 1977
    Assignee: Narco Scientific Industries, Inc.
    Inventor: John M. Ferrara