Patents Represented by Attorney, Agent or Law Firm Dinnin & Dunn
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Patent number: 5365901Abstract: An engine cover assembly for use in an internal combustion engine. The engine cover includes a composite plastic body and low creep material for the flange section of the engine cover. The low creep material allows for a low incident of creep at the bolts which secure the engine cover to the head of the engine. This insures the bolts will not loosen due to the degradation of the material to which the bolt is tightened. A mechanical or chemical lock is used to secure the plastic cover to the low creep material flange portion of the engine cover, The engine cover reduces the weight and the engine noise associated with the internal combustion engine.Type: GrantFiled: November 15, 1993Date of Patent: November 22, 1994Assignee: Freudenberg-NOK General PartnershipInventor: Casimir R. Kiczek
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Patent number: 5355574Abstract: Tool for installing and removing anti-friction skate wheel bearings press fit in plastic skate wheels. A tubular shouldered split end passing through the inner race provides bearing engagement when spread by retraction of a conically headed rod projecting beyond the split end. A threaded end of the rod projecting beyond tube is retracted by a threaded knob reacting against the end of the tube, and the tube with bearing is retracted by rotating knob fixed on the tube to feed a threaded portion of the tube through a threaded collar reacting against a side of the wheel. For installing a bearing, it is retracted into a press fit cavity in the skate wheel; and for removing the bearing it is oppositely retracted by the same split end tube extension when spread by the conically headed rod and rotated in the collar.Type: GrantFiled: August 18, 1993Date of Patent: October 18, 1994Assignee: Inventive Fabrications, Inc.Inventors: Raymond T. Zweekly, Jeffrey A. Zweekly
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Patent number: 5340486Abstract: Polypropylene is used as a component of a lubricant/release agent composition in diecasting of metals, with the composition containing the polypropylene finely dispersed in a liquid carrier, for example in an aqueous emulsion; and, a process of diecasting metal parts using said composition.Type: GrantFiled: July 14, 1993Date of Patent: August 23, 1994Assignee: Acheson Industries, Inc.Inventor: Anthony P. Willoughby
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Patent number: 5337597Abstract: The present invention is an apparatus and method for detecting a leak from an object. A bubble collecting tube is used for collecting bubbles emitted from an object and a bubble detecting assembly adjacent the bubble collecting tube is used for detecting a predetermined volume of bubbles collected in the bubble collecting tube to indicate a leak in the object.Type: GrantFiled: February 24, 1992Date of Patent: August 16, 1994Assignee: ExpertekInventors: Don A. Peake, Brian M. Weymouth
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Patent number: 5329898Abstract: An oil seal, and in combination therewith a housing having a bore with a non-continuous groove. The oil seal has a locking or retention rib held within the non-continuous groove and a second sealing rib in compression fit against the sealing surface of the bore.Type: GrantFiled: May 5, 1993Date of Patent: July 19, 1994Assignee: Freudenerg-NOK General PartnershipInventors: John J. Nelson, Lawrence E. Bell
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Patent number: 5307884Abstract: Multi-level sampling device including compartmentalized longitudinal member for lowering into loose-material to be tested at multiple levels providing for individual containers to be simultaneously filled at each respective level through a retraction of covering lids to accommodate pouring of the material into the containers followed by closing the lids and retracting the sampling device for inspection of the material in each respective container.Type: GrantFiled: January 28, 1993Date of Patent: May 3, 1994Assignee: Millgard Environmental CorporationInventor: V. Dennis Millgard
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Patent number: 5307660Abstract: A new water based lubricant composition for cold impact extrusion of spark plug bodies or the like, said composition being free of lower molecular weight flammable aliphatic and alicyclic compounds and comprising: an alkaline soluble thermoplastic acrylic resin binder, polytetrafluoroethylene particulate powder material, an alkaline solubilizing agent to maintain the pH of the composition within the range of approximately 8 to 11, a thickening agent, a defoaming agent, and the balance water; and a novel process of cold forming of metal or steel parts.Type: GrantFiled: August 6, 1992Date of Patent: May 3, 1994Assignee: Acheson Industries, Inc.Inventor: Edmond J. Stoutenburg
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Patent number: 5301563Abstract: A cable assembly for rotating a member in response to a rotating input, including first and second pulleys and at least one conduit extending longitudinally and interconnecting the first and second pulleys. At least one strand extends longitudinally through the conduit and at least partially about the first and second pulleys. The first pulley includes a slack adjustment mechanism for adjusting slack in the strands.Type: GrantFiled: July 10, 1992Date of Patent: April 12, 1994Assignee: Nagle Industries, Inc.Inventors: David A. Van Zanten, James J. Nagle
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Patent number: 5299786Abstract: A noise suppression apparatus for use with a spring. The apparatus includes a plurality of circular tubular members having a longitudinal slit in the tube wall and a radial slit. The slits allow the tubular members to be separated and disposed about the spring. Each of said circular tubes is interconnected by a web member. When the apparatus is snapped around the spring and the spring is compressed, any noise resulting from metal to metal contact will be suppressed by the apparatus.Type: GrantFiled: March 17, 1993Date of Patent: April 5, 1994Assignee: Freudenberg-NOK General PartnershipInventor: Roger R. Godin
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Patent number: 5295408Abstract: A strand end fitting includes a housing adapted to be attached to a mounting pin located on a moveable member and having a passageway extending therethrough. The strand end fitting also includes a longitudinal member having an aperture therethrough telescopingly disposed within the passageway whereby a strand extends through the longitudinal member and has a retainer member secured thereon which abuts the longitudinal member. Once the longitudinal member is properly positioned within the housing a locking structure prevents relative movement between the longitudinal member and the housing.Type: GrantFiled: October 9, 1992Date of Patent: March 22, 1994Assignee: Nagle Industries, Inc.Inventors: James J. Nagle, David A. Van Zanten
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Patent number: 5293785Abstract: A cable strand end fitting includes a housing adapted to be attached to a mounting member and having a passageway extending therethrough. The cable strand end fitting also includes a screw member including a passageway extending therethrough, whereby a strand extends through the passageway and has a retainer member which abuts the screw member. The cable strand end fitting includes a structure for adjusting the tension in the strand.Type: GrantFiled: September 17, 1991Date of Patent: March 15, 1994Assignee: Nagle Industries, Inc.Inventor: Norman B. Lichtenberg
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Patent number: 5292159Abstract: A new latch mechanism for a vehicle glove box doors, or other locking requirements, wherein the door is to be held in flush position relative to an adjoining panel surface, said latch mechanism comprising, an injection molded plastic body, an injection molded plastic handle, an injection molded lock member or actuator member, with the previous parts being spring biased into their appropriate positions during operation of the latch mechanism, and with the actuator member being of sufficient width to provide a strong retaining force for the latch mechanism upon the event of a vehicle crash impact and also acting to provide a wide contact locking surface to thereby assist in preventing flex distortions between said door and panel surface.Type: GrantFiled: March 24, 1993Date of Patent: March 8, 1994Assignee: NYX, Inc.Inventors: Chain S. Sandhu, Lev Lilov
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Patent number: 5289104Abstract: A battery charging device for charging a rechargeable battery unit includes a step-down unit which receives an external alternating current line voltage input and which reduces the line voltage input to an appropriate level. A rectifier unit receives the reduced line voltage input from the step-down unit and generates a direct current signal to charge the battery unit. A current limiting resistor serially interconnects the rectifier unit and the battery unit. A control unit is in series with the battery unit and includes a temperature switch, an excess current protective device in series with the switch, and a high resistance heating unit connected across the series combination of the switch and the protective device.Type: GrantFiled: November 20, 1992Date of Patent: February 22, 1994Inventor: Pi-Chu Lin
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Patent number: 5285754Abstract: A one-piece valve cover product for use on an internal combustion engine having an engine cylinder head, said cover product including dome-like upper portion which acts as a cover over the cylinder head area of the engine, a peripheral flange portion adapted for sealing engagement to the cylinder head, a plurality of apertures through said flange portion through which a plurality of fasteners can be inserted to secure said cover product in sealing engagement to the cylinder head, said valve cover including in an upper portion thereof a molded or cast conduit passageway member formed as part of the valve cover itself, said passageway member extending inside the cover and being adapted to receive an air/oil vapor mixture associated with operation of the engine and to condense oil out of said air/oil mixture, at least one or more apertures located in a lower part of that passageway member to permit the oil droplets which are condensed, to drain back into the engine, and wherein said valve cover is formed from aType: GrantFiled: July 12, 1993Date of Patent: February 15, 1994Assignee: Freudenberg-NOK General PartnershipInventor: Lawrence E. Bell
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Patent number: 5255647Abstract: A new elastomeric grommet-fastener assembly for use in connection with first and second apertured workpieces, for example in connecting a valve cover to an automotive engine block, with the fastener assembly being comprised of a fastener with clamping surface thereunder, a shank, and a reduced diameter entry portion; a washer member including a radial flange portion and an axially extending washer sleeve, with the washer means being telescopically positioned on the fastener shank; and an elastomeric grommet means, being molded from an elastomer, and having an axially extending sleeve portion, and a radial rim portion extending laterally from an upper part of the sleeve portion, with said grommet being telescopically positioned over the washer; and the sleeve of said washer having at least one or more holes therethrough such that the molded grommet has a portion of its elastomer protruding through to the inside of the washer sleeve, thereby enabling the washer with its associated grommet member to be capturedType: GrantFiled: February 8, 1993Date of Patent: October 26, 1993Assignee: Freudenberg-NOK General PartnershipInventor: Casimir R. Kiczek
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Patent number: 5254933Abstract: A battery charging device includes a step-down unit which receives an external alternating current line voltage input and which reduces the line voltage input to an appropriate level. A rectifier unit receives the reduced line voltage input from the step-down unit and generates a direct current signal to charge a rechargeable battery unit which is serially connected to the rectifier unit via a current limiting resistor. A control unit has a temperature switch and a high resistance heating unit which is connected across the temperature switch. The switch and the heating unit are provided in a single circuit package. The switch is serially connected to the battery unit and is closed when the temperature of the battery unit is below a predetermined limit. The switch is opened so as to permit the direct current signal to flow through the heating unit when the temperature of the battery unit reaches the predetermined limit.Type: GrantFiled: July 9, 1992Date of Patent: October 19, 1993Inventor: Pi-Chu Lin
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Patent number: 5237855Abstract: A method and apparatus for leak testing a fluid containing chamber wherein the chamber is pressurized with a gas and is submerged in a liquid. The bubbles of gas rising from the submerged chamber are directed past a plurality of a predetermined locations that are each in optical communication with a photoelectric detector. The signals from the detectors are counted and when the number of bubbles exceeds a predetermined number, a signal is activated indicating a leaking container. By grouping a number of adjacent photoelectric detectors into a predetermined set, the apparatus can discriminate between random bubbles rising from the chamber surface as it is submerged and a number of bubbles all originating from a given location indicating a leak. The photoelectric detectors may be positioned in the liquid adjacent the predetermined locations or positioned out of the liquid and coupled to the predetermined locations by fiber optic cables.Type: GrantFiled: February 26, 1991Date of Patent: August 24, 1993Assignee: Expertek, Inc.Inventor: Donald C. Gates
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Patent number: 5237856Abstract: The present invention is an apparatus and method for detecting a leak from an object. A bubble collecting tube is used for collecting bubbles emitted from an object and a bubble detecting assembly adjacent the bubble collecting tube is used for detecting a predetermined volume of bubbles collected in the bubble collecting tube to indicate a leak in the object.Type: GrantFiled: June 20, 1991Date of Patent: August 24, 1993Assignee: Expertek, Inc.Inventors: Don A. Peake, Brian M. Weymouth
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Patent number: D347341Type: GrantFiled: March 22, 1991Date of Patent: May 31, 1994Inventors: David J. Handley, Patrick G. Costigan
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Patent number: RE34731Abstract: Digital level sensing probe system including digital probe constructed of two (2) concentric cylinders, forming a set of discrete, cylindrical capacitors that use the substance whose level is to be measured as a dielectric material. The set of capacitors is arranged along the axis of measurement where each capacitor represents a discrete level increment. Each capacitor is assigned a unique time slot in a switching sequence. The first level capacitor is used as a reference to which all other capacitors are sequentially compared. In the switching sequence, an AC signal is applied across each capacitor and compared with the inverted signal which is applied across the first level capacitor. A logic "1" results when the substance is present and a logic "0" when the substance is absent. The logic is decoded and converted to display the appropriate quantity of substance measured.Type: GrantFiled: December 22, 1992Date of Patent: September 20, 1994Assignee: Lee/Maatuk Engineering, Inc.Inventors: Calvin S. Lee, Eliahou Tousson