Patents Assigned to O
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Patent number: 4636242Abstract: A slow release particulate fertilizer product in which the fertilizer particles are encapsulated with a sulfur coating. The sulfur coating is substantially crystalline and contains in admixture therewith from 0.05 to 2% (by weight of the coating) of a substituted symmetrical dialkyl polysulfide plasticizer as the sole organosulfur compound in the admixture. Fertilizer efficiency over standard sulfur coatings improves typically 40-50% with the plasticized sulfur coatings.Type: GrantFiled: April 7, 1986Date of Patent: January 13, 1987Assignee: The O. M. Scott and Sons CompanyInventor: Richard J. Timmons
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Patent number: 4634360Abstract: Apparatus for manufacturing multiple color thin-walled hollow shells for parts such as automobile door panels, consoles and instrument panels from dry thermoplastic plastisol includes a supply box with a divider to form two or more compartments in the box. The box divider cooperates with selectively positioned split mold parts defining a separation in an open-ended heated mold for separating the mold into two or more sections. Complementary open ends of the charge box and mold are joined. Then the apparatus is rotated so that the powder is distributed into each mold section by gravity flow with the powder from each section flowing to the divider which separates the colors so as to form two or more tones on a resultant shell of cured material; thereafter the powder box is removed and the split mold parts are joined to clamp cast shell segments for fusion at a joint line.Type: GrantFiled: November 4, 1985Date of Patent: January 6, 1987Assignee: Ex-Cell-O CorporationInventor: John D. Gray
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Patent number: 4634298Abstract: A self-aligning bearing assembly particularly suited for use in a fractional horsepower electric motor includes a bearing having a partially spherical outer surface and a central hole for rotatably journaling a shaft therein. A housing defining a generally cylindrical opening having an internal surface which is radially spaced from the bearing, also defines a bearing seat adjacent to and conforming in shape with a portion of the outer surface of the bearing. The housing further includes a lip extending radially inward from the internal surface of the cylindrical opening. A spring bearing retainer of resilient flexible sheet-like material and having a generally planar body is inserted into the cylindrical opening. The retainer includes a plurality of radially deformable projections which extend outwardly from the body and has a central aperture for engagement with a second portion of the outer surface of the bearing.Type: GrantFiled: August 14, 1985Date of Patent: January 6, 1987Assignee: A. O. Smith CorporationInventor: Bradly A. Crawford
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Patent number: 4633763Abstract: A switch and valve assembly for inflating or deflating a pair of bladders mounted in the back and seat regions of a vehicle seat. The assembly houses two normally-closed valve assemblies and two normally-open electrical switch assemblies, with two pushbutton-actuated stems adapted to selectively either partially open the valve assemblies by partial depression of the pushbuttons to thereby bleed-off fluid under pressure from respective bladders, or to fully open the valve assemblies while closing the switch assemblies by full depression of the pushbuttons to thereby actuate the pump to provide fluid under pressure to fill the respective bladders as desired for operator riding comfort or support. Pressures in the two bladders may be changed individually or concurrently.Type: GrantFiled: April 15, 1985Date of Patent: January 6, 1987Assignee: Ex-Cell-O CorporationInventors: Steven F. Manning, Jimmie G. Perkins, Dennis H. Heling
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Patent number: 4632845Abstract: A process for fabricating electronic switching elements and/or circuits in multilayer thick-film technology on a substrate. The electronic switching elements and/or circuits are printed onto the substrate in the form of liquid or pasty mixtures of materials, then heat-treated, whereupon at least one insulating layer is deposited on the thick-film conducting layer. In this process, the surface of any desired insulating interlayer is finished abrasively and subsequently again at least one thick-film conducting layer or at least one insulating layer is deposited on the finished surface. Then, the surface or this insulating layer is again finished abrasively in subsequent printing operations of thick-film conducting layers or in other insulating layers in order to provide upon completion each layer at least the same processing ingredients and conditions as those on the surface of the substrate.Type: GrantFiled: November 9, 1983Date of Patent: December 30, 1986Assignee: F+O Electronic Systems GmbH & Co.Inventors: Gunther Obstfelder, Gerhard Kreutze, Winfried Luttig
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Patent number: 4630878Abstract: Method and apparatus for the remote-controlled connecting or separating of two coupling parts each of which is provided with mechanical form-lock elements and with control-line connectors, one of which parts is provided on the working tool and the other on the dipper stick or the like of a hydraulic excavator, which parts can be connected in force-locked manner by a hydraulic-mechanical locking device, each connecting or separating process comprising two successive individual processes.Type: GrantFiled: March 26, 1984Date of Patent: December 23, 1986Assignee: O&K Orenstein & Koppel AktiengesellschaftInventors: Franz Heine, Heinz-Joachim Ruttershoff
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Patent number: 4630853Abstract: An auxiliary locking device for a sliding door is disclosed, comprising a blocking member having an upward-opening longitudinal channel near its inner side for receiving the inner frame member of the sliding door channel. At least one clamping screw protrudes through threaded hole(s) in the inner side of the blocking member into the longitudinal channel, for clamping the blocking member to the inner frame member of the sliding door with the outer portion of the blocking member protruding into the sliding door channel for blocking sliding of the sliding door, thereby preventing opening of the door past the blocking member location. A rod projects from the outer portion of the blocking member for positioning along the sliding door channel above the sliding door when the device is installed, for thereby preventing the sliding door from being lifted out of its channel for removal. The outer portion of the blocking member is provided with an upward-opening channel, and the rod is L-shaped.Type: GrantFiled: March 29, 1985Date of Patent: December 23, 1986Assignee: O. Ruben PetterssonInventor: L. James Bell
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Patent number: 4628643Abstract: The grinding wheel infeed control method provides a constant infeed rate calculated on the average electrical power consumed by the wheel drive motor in rough grinding an immediately preceding workpart. Each subsequent workpart is rough ground at a constant infeed rate established from the wheel drive motor power consumption of the immediately preceding workpart until the grinding wheel is in need of re-trueing or re-dressing. The first workpart ground after wheel re-trueing or re-dressing is ground at a rough (high) infeed rate which is continuously varied by the machine control computer so as to maintain the electrical power consumed by the grinding wheel drive motor substantially constant at a preset level and from which the constant infeed rate for the second workpart is determined.Type: GrantFiled: November 27, 1985Date of Patent: December 16, 1986Assignee: Ex-Cell-O CorporationInventors: Richard H. Gile, Robert W. Ludwig, Steven P. Farrar, Steven P. Farmer, Eben C. Waterman
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Patent number: 4628398Abstract: A surge voltage protection arrangement for a load 10 connected to an A.C. supply 8 comprising a gas-filled excess voltage arrester 11 connected in series with a capacitor 12 across the load 10. The value of the capacitor 12 is chosen such that the largest expected surge pulse which causes the arrester 11 to fire will not charge the capacitor to such an extent that the voltage then applied across the load 10 exceeds that of the A.C. supply 8. The arrangement enables the arrester 11 to recover after such a surge pulse within a fraction of an A.C. supply cycle, thus avoiding placing an unnecessary load on the arrester. A resistor 13 whose resistance is of a value such that the capacitor 12 is able to discharge through it within one half cycle of the A.C. supply may be connected across the capacitor 12.Type: GrantFiled: June 1, 1984Date of Patent: December 9, 1986Assignee: The M-O Valve Company LimitedInventor: Kenneth G. Cook
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Patent number: 4626161Abstract: A pre-assembled turntable mounting unit for a storage structure. The storage structure is mounted on a foundation having a radial trough extending from the center of the structure to the exterior. A pre-assembled turntable mounting unit is disposed in the inner end of the trough at the center of the storage structure. The turntable mounting unit includes a fixed mounting ring which rests on the upper surface of the foundation bordering the trough and a plurality of angle-shaped roller support brackets are supported on the ring. A turntable, which supports the inner end of a rotatable sweep arm, is mounted for rotation on rollers carried by the roller brackets. By removing the anchor bolts the entire turntable mounting unit can be readily removed from the storage structure. The drive transmission that acts to rotate the sweep arm about its axis is mounted in a pre-established position on a platform suspended in the trough from the turntable mounting ring.Type: GrantFiled: October 23, 1984Date of Patent: December 2, 1986Assignee: A. O. Smith Harvestore Products, Inc.Inventors: George E. Olson, Jerry F. Nobiling
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Patent number: 4626821Abstract: A sealed bimetal snap disc thermostat is disclosed which is suitable for use in environmental locations in which severe thermocycling occurs. The thermostat provides a disc cup having an imperforate end wall which is the only portion of the thermostat per se which is exposed. A non-metallic enclosure cup is formed with an aperture closely encircling the disc cup and which defines a cavity surrounding the remaining portions of the thermostat. A sealing compound, such as epoxy, fills such cavity. The disc cup is crimped onto the thermostat body and provides an extended portion which is spaced from the thermostat body so that the sealing adhesive provides an interface of substantial area with the metal disc cup to assure a continuing seal. Because the sealant and enclosure cup surround the entire thermostat except for the disc cup, the thermostat is thermally insulated from its environment except for the disc cup end face.Type: GrantFiled: November 4, 1985Date of Patent: December 2, 1986Assignee: Thermo-O-Disc, IncorporatedInventor: Douglas P. Versaw
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Patent number: 4626776Abstract: A circuit board testing apparatus is disclosed which effectively provides two vacuum chambers. A plurality of test probes casings are mounted in a bottom wall, which casings extend upwardly through an intermediate plate, the casings being slidably sealed to the plate. A top wall which has a plurality of apertures therethrough is provided in normal spaced relationship to the intermediate plate, and gasketing means are provided to achieve a vacuum chamber between the top plate and the intermediate plate and between the intermediate plate and the bottom wall by arranging a flexible diaphragm. Vacuum is supplied to the two chambers in a selected sequence for moving the top wall toward the intermediate plate, second vacuum means provided for moving the top wall and intermediate plate toward the bottom wall. By providing probe tips of different lengths in the receptacles, a variety of combinations of circuit testing can be performed, including a functional test in one operation.Type: GrantFiled: June 7, 1984Date of Patent: December 2, 1986Assignee: O. B. Test Group, Inc.Inventor: Alan M. Wilkinson
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Patent number: 4624236Abstract: In dressing a grinding wheel having a non-cylindrical contour, the wheel is moved in a path corresponding substantially to the desired wheel contour by first and second CNC controlled slides while a single point diamond or diamond roll dresser is rotated by a CNC controlled rotary mechanism through selected angles during traversal of the wheel therepast to maintain a vertical reference plane containing the centerline or mid-plane of the diamond dresser point or radius substantially orthogonal to a vertical reference plane containing a tangent to the wheel contour path. Maintenance of the orthogonal relationship between the single point diamond dresser point or radius and wheel contour path during traversal results in the desired wheel contour being accurately dressed.Type: GrantFiled: November 27, 1985Date of Patent: November 25, 1986Assignee: Ex-Cell-O CorporationInventors: Richard H. Gile, Edward C. Bourgoine
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Patent number: 4623503Abstract: A method wherein an article is molded of a heat-fusing material or plastisol, either liquid or dry, in a mold having an array of gas impingement jets disposed adjacent the backside of a mold surface for controlling the temperature over respective first and second areas of the mold surface. There is included first and second gas heating and cooling circuits each including a blower and dampers for supplying gas at the gas impingement jets associated with the mold. All of the gas impingement jets are supplied with heated gas to preheat the mold surface to a non-gelling temperature and a liquid plastisol coating is applied to the mold surface. To obtain the coating, the mold is filled and the excess plastisol is removed from the mold by dumping the plastisol from the mold into a dump tank.Type: GrantFiled: November 21, 1984Date of Patent: November 18, 1986Assignee: Ex-Cell-O CorporationInventors: Emmanuel Anestis, Frederick I. Wakefield
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Patent number: 4622964Abstract: A breathing valve having a valve chamber connectable to a gas supply and to a breathing device, a gas flow opening for exit of exhaled gases through which atmospheric air may be inducted into the chamber, a valve member in the chamber, a one-way flow opening in the valve member through which gas may flow from the chamber for breathing, and preventing return flow in the opposite direction, a movable valve closure forming part of the valve member movable into and out of sealing engagement with the exit gas flow opening, and a pressure responsive device in the valve member responsive to obstruction of gas flow into the chamber and further responsive to inspiratory effort by a patient to cause the valve member to move away from the exit gas flow opening for permitting air flow through the exit gas flow opening into the chamber for inhalation.Type: GrantFiled: March 5, 1985Date of Patent: November 18, 1986Assignee: O-Two Systems International Inc.Inventor: Stephen D. Flynn
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Patent number: 4623325Abstract: A folding insert for forming a jacket to be used for a device to form a envelope-shape jacket for a magnetic cartridge. The folding insert is provided with protrusions and grooves along both side edges thereof, whereby flaps of the jacket material can be bent more than 180.degree. by a folding bar along the protrusions of the folding insert.Type: GrantFiled: November 30, 1983Date of Patent: November 18, 1986Assignee: O-M LimitedInventors: Yoshinobu Mori, Akira Tada
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Patent number: 4623829Abstract: A multiple speed motor includes first and second speed windings connected to first and second power terminals and a start winding connected to a common power terminal. A Triac connects one speed winding to power and has a gate. Either the first or second power terminal is connected to one side of a power supply and the third or common terminal is connected to the second side of the power supply. The gate is connected to the start winding. A speed responsive switch has first and second contacts connected to first and second power terminals and third connected to a common node the connection between the start winding and the gate.Type: GrantFiled: September 7, 1984Date of Patent: November 18, 1986Assignee: A. O. Smith CorporationInventors: Howard W. Smith, Robert H. Douthart
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Patent number: 4621995Abstract: A molding machine has a valve assembly that includes means for selectively heating or cooling a mold by controlling flow of gas through an array of gas impingement jets disposed adjacent the backside of a mold surface to regulate the temperature over respective first and second areas of the mold surface. Gas heating and cooling circuits include two drive cylinder regulated plate valves for supplying gas at the gas impingement jet nozzles associated with the mold.Type: GrantFiled: October 18, 1985Date of Patent: November 11, 1986Assignee: Ex-Cell-O CorporationInventor: John M. Wersosky
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Patent number: 4620488Abstract: An improved serving tray according to the teachings of the present invention is disclosed as including a window abutting element which is laterally positionable allowing a window abutting edge to abut with and fulcrum on the outside surface of the window to compensate for variations of the angle of the window to allow the serving platform of the serving tray to be horizontal. The window abutting element is laterally positionable by slideably mounting it to the bottom surface of the serving platform. In its most preferred form, the window abutting element is slideably mounted by arms extending generally parallel to and spaced from the rear legs of the serving tray. The window abutting element is held in one of multiple positions by teeth formed on the bottom surface of the serving platform and formed on the window abutting element.Type: GrantFiled: July 24, 1985Date of Patent: November 4, 1986Assignee: O Tray CorporationInventor: Jerome L. Formo
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Patent number: D287212Type: GrantFiled: May 21, 1984Date of Patent: December 16, 1986Assignee: Bunn-O-Matic CorporationInventor: Donald L. Daugherty