Patents Represented by Attorney Alan Oppenheimer Wolff & Donnelly LLP Kamrath
  • Patent number: 6024033
    Abstract: The seeder apparatus includes a material hopper for dispensing material onto a conveyor to be moved thereby to an entry nip between a rotary brush and the conveyor for propelling the material downwardly at the discharge end. In one embodiment, a metering gate extends vertically in its closed position relative to the conveyor, with the metering gate controlling the rate of dispensation of seed or other material being moved to the entry nip. A shield assembly is provided to minimize the effects of wind on the trajectory of seed or other material being propelled to the ground by the brush and conveyor. In preferred forms, a separate seed hopper is mounted to the top dresser, and in a second embodiment, either seed from the seed hopper and/or dressing material from the top dresser hopper may be moved by the conveyor to the entry nip.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: February 15, 2000
    Assignee: Turfco Manufacturing, Inc.
    Inventors: John Kinkead, George B. Kinkead, Scott Kinkead, Matthew A. Donner
  • Patent number: 6017091
    Abstract: An adjustable armrest assembly has a fixed seat, a control seat disposed on the fixed seat, a pad seat disposed on the control seat, a main body disposed on the pad seat, and a cover plate covering the main body. The fixed seat has two through apertures. The control seat has two stepped holes, two threaded apertures, and two upper grooves. The main body has a lower recess receiving the pad seat and the control seat, an upper recess receiving an elastic plate, and a separation plate. Two slide seats are inserted in the stepped holes. Two hollow cylinders are inserted in the upper grooves.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: January 25, 2000
    Inventor: Zi-Wen Cao
  • Patent number: 6014878
    Abstract: An outside handle assembly of a lock includes an outside lever handle, an outside handle spindle secured to the outside lever handle to rotate therewith and including a first slot defined in a periphery thereof, and an actuating spindle mounted in the outside handle spindle and operably connected to a retractor. The actuating spindle includes a second slot aligned with the first slot of the outside handle spindle. A catch is mounted in the actuating spindle and has a first end pivoted to the actuating spindle and a second end. A tapping plate is slidably mounted in the actuating spindle and connected to the tail piece to move therewith. When the lock is in an unlocked status, the outside handle spindle and the actuating spindle rotate synchronously, as the second end of the catch extends through the second slot of the actuating spindle into the first slot of the outside handle spindle.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 18, 2000
    Inventor: Mu-Lin Shen
  • Patent number: 6014877
    Abstract: An outside handle assembly includes comprises a spindle, a knob connected to the spindle to rotate therewith, and a core retainer. The spindle includes an upper slot and a lower slot, thereby defining two lateral walls. Each lateral wall includes an upper cut defined in an upper side thereof and a lower cut defined in an underside thereof. The knob includes an end wall having an opening defined therein and a projection formed in a periphery that defines the opening. The core retainer is mounted in the spindle and includes a cylindrical main body including a first end with a flange formed on an outer periphery thereof and a second end. The flange includes an outer end face that bears against the end wall of the knob. Two retainer lips are formed on the outer end face of the flange and include a cut therebetween for fittingly receiving the projection of the knob to thereby prevent rotational movement of the knob relative to the core retainer.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: January 18, 2000
    Inventor: Mu-Lin Shen
  • Patent number: 6012309
    Abstract: A pad lock includes an outer casing, a lock main body, and a shackle. A stem is slidably mounted in the lock main body. Several number wheels are rotatably mounted around the stem. Also rotatably mounted around the stem are several retaining sleeves each being releasably engaged with an associated number wheel to rotate therewith. A lever member includes a first end for releasably engaging two pin members to retain the shackle in a locked status. The lever member includes a second end with a number of tongues for engaging with the retaining sleeves. A positioning member is formed on the second end of the lever member. A safety pin is mounted to the lever member to assure the positioning member in a position that prevents setting of a new code when any one of the number wheels is not in the correct position for unlocking.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: January 11, 2000
    Inventor: Tien-Kao Liu
  • Patent number: 6000762
    Abstract: A wheel has a tire, two wheel disks disposed in a center of the tire, and a gasket disposed between the two wheel disks. Each of the wheel disks has an axle hole, a plurality of threaded holes, and a plurality of lock holes. The gasket has a center hole, a plurality of threaded apertures, and a plurality of lock apertures. An axle passes through the center hole and the axle holes.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: December 14, 1999
    Inventor: Yao-Tung Chang
  • Patent number: 5996955
    Abstract: An engaging member is provided for engaging two cross rods consisting of a first rod and a second rod. The engaging member includes an inverted U-shaped section having two ends. Each end of the inverted U-shaped section extends in a direction transverse to a plane on which the inverted U-shaped section locates, thereby forming an upwardly facing receiving section through which the second rod is extended. The receiving sections are parallel to each other and respectively joined with a first inclined section and a second inclined section. The first inclined section has a distal end extending across the second inclined section, thereby forming a first inverted U-shaped retaining section that is located above the first inclined section and the second inclined section. The second inclined section has a distal end extending across the first inclined section and, thereby forming a second inverted U-shaped retaining section that is located above the first inclined section and the second inclined section.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: December 7, 1999
    Inventor: Ding-Kuo Chen
  • Patent number: 5996563
    Abstract: An air intake device has a base seat, a hollow main body disposed on the base seat, and a hollow cover seat disposed on the hollow main body. An intake guide pipe is connected to the connection pipe. A plurality of L-shaped plates are disposed in the hollow cover seat. An upper magnet is disposed in the hollow cover seat. A lower magnet is disposed in the hollow main body. The lower magnet has a taper lower portion. The hollow main body has an upper interior, an inner thread, a lower interior, a lower groove, and an upper groove. A hollow adjustment screw is inserted in the hollow main body. The hollow adjustment screw has a center hole and an annular recess receiving a seal ring. The base seat receives an air cleaner.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: December 7, 1999
    Inventor: Jun-Yao Liao
  • Patent number: 5994810
    Abstract: A fan clutch (A') includes an eddy current drive (224) having a first, magnetic field producing drive component rotatable with the output and a second, coupling drive component rotatable with the input in the form of a sheave (50'). The first drive component includes permanent magnets (226). The second drive component is of a one-piece construction including a steel ring (238) embedded in a body portion (241) formed of aluminum. The steel ring (238) includes locating ears (310) for properly locating and retaining the ring (238) in a mold half (324). Positioning tabs (312, 314) extend from the faces (302, 304) of the ring (238) and prevent the ring (238) from floating in the volume between the mold halves (318, 324) which forms the body portion (241) during the introduction of the molten aluminum. The body portion (241) is integrally formed with circumferentially spaced air moving vanes (264) and an annular disc portion (260) for mounting to the sheave (50').
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: November 30, 1999
    Assignee: Horton, Inc.
    Inventors: John B. Davis, Rick Vatsaas, Kent Carlson
  • Patent number: 5988381
    Abstract: A tool display pack includes a board and a security device. The board has an engaging hole with a shoulder section. The security device includes an end pivotally connected to the boar. A resilient locking member projects from an inner side of the security device that faces a front side of the board. The resilient locking member includes a hook formed on a distal end thereof and a protrusion formed adjacent to the hook. The security device includes a through-hole through which a tool to be displayed is extended. The locking member is extendible through the engaging hole of the boar such that the protrusion and the hook of the resilient locking member are located on a rear side of the board. The protrusion is releasably engaged, with the shoulder section of the board, and the hook prevents pivotal movement of the security device relative to the board when the hook is moved to bear against the shoulder section of the board, thereby locking the tool in place.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: November 23, 1999
    Assignee: Hand Tool Design Corporation
    Inventor: David Ling
  • Patent number: 5987120
    Abstract: A device for identifying a line reversal signal and a ringing signal of a telephone set having a built-in ringing detection circuit includes a counter, a comparator and a latch connected with each other in series. The device can determine whether a signal on line is the line reversal signal or the ringing signal of the telephone set without using an installed CPU or a timer thereof, so as to save power and reduce the load of the CPU.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: November 16, 1999
    Assignee: Winbond Electronics Corp.
    Inventors: Bar-Chung Hwang, Jizoo Lin
  • Patent number: 5982885
    Abstract: A portable telephone holder has a base seat, a cover covering the base seat, a left and a right lateral clamp devices disposed at two sides of the cover, a positioning seat disposed on a bottom of the cover, a first and a second coupling sliders disposed between the cover and the base seat, and a left upper, a left lower, a right upper and a right lower rubber sleeves disposed on the cover.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: November 9, 1999
    Inventor: Wun-Shing Ho
  • Patent number: 5979014
    Abstract: A wet/dry vacuum device includes a canister unit that is pivotally mounted to an upstanding portion of a support carriage for movement between a lowered, in-use position and a raised, emptying position. Also pivotally attached to the upstanding portion of the support carriage is a lifting assist lever upon which the canister unit rests for movement between the lowered and raised positions. Interposed between the carriage and the lifting assist lever is a device, such as linear acting, fluid spring, for assisting in manually tilting the canister unit. The fluid spring is preferably interconnected to each of the carriage and the lifting assist lever through respective loss motion connections which enable a rather large tilting range for the canister unit while minimizing the required length of the fluid spring.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: November 9, 1999
    Assignee: Nilfisk-Advance, Inc.
    Inventors: Steve Reichow, Al C. Miller, Keith E. Nygaard, Don F. Ketcher
  • Patent number: 5975109
    Abstract: A pumping device includes a main body having a passage defined therein through which air passes, a head connected to the main body, and a retainer slidably received in the head. The retainer includes a first compartment communicated with the passage. The second end of the retainer includes a conical recess defined therein, and a nozzle is slidably mounted in the second end of the retainer. A nozzle head is securely mounted in the second end of the head and includes a second compartment communicated with the first compartment via the nozzle. The nozzle head includes a hollow conical section for engaging with the conical recess of the retainer. A retaining pin is mounted in the first compartment and has a first end secured to the first end of the nozzle to slide therewith.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: November 2, 1999
    Inventor: Scott Wu
  • Patent number: D416202
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: November 9, 1999
    Inventor: Robert Wu
  • Patent number: D416505
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: November 16, 1999
    Inventor: Chung-Shyan Huang
  • Patent number: RE36390
    Abstract: The invention pertains to a device for the cooling of edible foams, where a cooling or freezing system for pre-freezing of the foam is directly outlet-connected to an aeration system, a motor driven extruder device designed as combined deep freezing and transport device is outlet-connected to the cooling and freezing system, in which the pre-frozen foam can be cooled down to storage temperature, and the aeration device, the cooling or freezing system and the extruder device are connected together by means of pipes. The device of the present invention is characterized in that the extruder device has at least one double screw system with two screws positioned parallel to each other with their rotational axes. The lands of the screws of the double screw system scrape against the inner cylinder mantle surface of the housing surrounding it.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: November 16, 1999
    Inventors: Ulrich Fels, deceased, by Elisabeth Fels, legal representative, Erich Windhab, Ralf Hoffmann, Peter von Holdt, Lutz Hahn
  • Patent number: D417100
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: November 30, 1999
    Inventor: Ming-Hao Lee
  • Patent number: D417106
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: November 30, 1999
    Inventor: Ming-Hao Lee
  • Patent number: D419857
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: February 1, 2000
    Inventor: Han-Ching Huang