Patents Represented by Attorney Thomas S. Keaty
  • Patent number: 4981199
    Abstract: A double-rod hydraulic cylinder for an exerciser including a casing, a piston assembly and a universal joint. The piston assembly includes a piston head and two piston rods. Two bearings are respectively fixed to an inner wall of each closed end of the casing. A disk-type spring washer, a washer, an oil seal and a disk-like fixing gasket are arranged respectively in series from each bearing to said piston head. Each of the bearings, the disk-like fixing gaskets, the disk-type spring washers, the washers and the oil seals have a central hole in alignment for the piston rods to pass through. The washers, the oil seals and the gaskets are axially slidable a short distance within the casing. The two disk-like fixing gaskets and the piston head together define a first chamber and a second chamber. Each disk-type spring washer is compressed when the piston assembly axially moves in either direction. The hydraulic cylinder further includes an oil pipe.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: January 1, 1991
    Assignee: Dah Ken Industrial Co., Ltd.
    Inventor: Chin S. Tsai
  • Patent number: 4979907
    Abstract: An outlet strip assembly comprises a multiple receptacle mechanism which is formed of a single piece separate from the cover plate. The multiple receptacle mechanism receives three bus bars to establish a complete electrical connection for electrical plugs and power lines. The multiple receptacle mechanism is press-fitted to a base via a linking mechanism. A cover plate adapted to cover the multiple receptacle mechanism can be made of any suitable material and color.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: December 25, 1990
    Inventor: James Lee
  • Patent number: 4974352
    Abstract: A picture frame including two side members, a top member, a bottom member and four connecting means. Each of the two side members, the top member and the bottom member has a flat elongated base. A first flange protrudes from the elongated base adjacent to a first edge of the base and extends along a length of the base. A second flange protrudes from a middle region of the base and extends along the length of the base. A third flange protrudes from a second edge of the base and extends along the length of the base. The first flange has two slots formed at a position adjacent to each end thereof. A fourth flange protrudes from a middle portion of the second flange. The first flange, the second flange, the fourth flange and the base together define a first channel therebetween within which the connecting means is slidable. The second flange and the third flange together define a second channel for receiving a picture or photograph. The connecting means is substantially L-shaped including two side portions.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: December 4, 1990
    Inventor: Chen Shwu-Jen
  • Patent number: 4944284
    Abstract: The invention relates to a portable stove and provides for the use of a horizontal platform on which a vertically oriented cylindrical housing is positioned. A plurality of burners are secured adjacent a lower portion of the housing, the burners being connected through a fuel transmitting conduit to a fuel source outside of the housing. A pair of support plates are secured within the housing above the burners with one of the plates being connected to a bar which rotates the plate, to a limited degree, about its central axis in a horizontal plane, so as to cover notches formed in the second plate by its solid surface. The second plate is also provided with a plurality of equidistantly spaced notches, which, when aligned with notches of the first plate, allow heat to directly escape through the notches to an upper portion of the housing. The stove can be used for boiling, frying and/or grilling, when desired.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: July 31, 1990
    Inventor: Vorney O'Quin
  • Patent number: 4942627
    Abstract: The invention relates to articles of clothing, and more particularly to scarves. The scarf provides for the use of a substantially elongated body having a square portion and a rectangular portion integrally connected to each other. A loop is formed in a free end of the rectangular portion, through which corners of the square portion are pulled to tie a scarf of various modes and loops. The scarf remains tied, without the use of pins, broaches or other securing means.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: July 24, 1990
    Inventor: Judy Copprue
  • Patent number: 4943379
    Abstract: An apparatus and process of filtering fluids, such as white water is provided for use in the place of an existing save-all device or downstream of an existing save-all device at a paper-making mill. The white water having contaminants in a suspended state is introduced into the filtration vessel and is withdrawn from the interior of the filter element positioned within the filtration vessel. To clean the filter element from the cake which has built up on the exterior surface of the filter element, a backflushing shock is applied to the interior of the filter element, forcing all cake settled on the exterior to be dislodged, thereby cleaning the filter element. The backflushing shock is delivered from a backflushing reservoir wherein the backflushing fluid is contained under pressure at a level at least slightly above the level of a pressure differential which has built up across the filter element. The shock is applied for a period of 1-2 seconds, during which time the backflush reservoir is emptied.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: July 24, 1990
    Inventors: Ronald A. Boze, Theodore A. Warning
  • Patent number: 4933015
    Abstract: A small, simple device for cleaning type elements and print heads consisting of (1) a rigid, yet flexible, plastic backing, onto which is bonded (2) a soft absorbent material which has been wetted with (3) a solvent cleaning solution.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: June 12, 1990
    Assignee: Charles D. Knapp
    Inventor: Arthur C. White
  • Patent number: 4926964
    Abstract: This invention relates to a convertible step/extension ladder which allows to use one or more of extension sections with a basic A-shaped ladder frame. The extension sections are slidably mounted on legs of the frame through the use of housing/sliding rail arrangement on the legs of the frame and on the extension sections. When converted to an extension ladder, the basic frame portions are folded and locked in that position, while one extension section is moved along the frame portion to rest on the ground. If more than one extension sections are used, the second extension section is mounted on the opposite frame portion and extended upwardly, so that the basic frame portions form a middle part of the ladder.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: May 22, 1990
    Inventor: Danny R. Herrin
  • Patent number: 4926898
    Abstract: The invention relates to a safety chock valve having improved body top. An upper part of the valve body has a tapered wall cavity which receives in a sealed engagement a tapered lower part of the valve bonnet. An internally threaded cap member secures sealed position of the bonnet on the valve body. Even partial disengagement of the threads causes breaking of the sealed engagement and escape of pressure between the valve body and the bonnet.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: May 22, 1990
    Inventor: Ted J. Sampey
  • Patent number: 4925105
    Abstract: A rechargeable garden sprayer includes a container having an opening on an upper face, a lower suction tube, and an inlet formed at a side thereof. The inlet cooperates internally with the main body of the container such that liquid poured in through the inlet flows to the container. An engaging body has a base with about the same shape and size as the upper face of the container so as to be mounted on the container. The engaging body includes a number of upstanding hollow tubes along its periphery and a fixing panel to define a retaining recess. A top cover having substantially an inverted U-shaped body has two side panels with a number of downwardly extending poles at an inner side thereof for inserting into the hollow tubes and thus engaging with the engaging body. The top cover has a handle on its uppermost part.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: May 15, 1990
    Inventor: Hsien C. Lin
  • Patent number: 4924918
    Abstract: A machine and method for manufacturing "fuzz button" type button connectors. The machine has a mechanism for supplying wire and a mechanism for knurling the same wire. The machine also includes a mechanism for wrapping the wire around two temporarily fixed points and a mechanism for spinning one of the two fixed points. After wrapping and spinning, the wire is cut at both end portions and ejected.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: May 15, 1990
    Inventors: Ming-fang Lin, C. H. Cheng
  • Patent number: 4925427
    Abstract: A toy car having a two-level cam, sound assembly, projection assembly, signal light, and a signal light activation arm. The two-level cam includes an upper and a lower cam and is driven indirectly by a battery-powered electric motor and a series of gears. The upper cam drives the projection assembly to project toy figures out of the car doors and springs cause the toy figures to return to their original position. The lower cam urges a spring-loaded signal light activation arm to urge a signal light to be intermittently rotated into position. Another cam indirectly drives a reverberation arm to move and also causes two lights to move. The sound assembly includes a sound-generation device, reverberation hole, and sound emission hole, with the sound-generation device being driven directly by the motor.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: May 15, 1990
    Inventor: Hai-Ming Wu
  • Patent number: 4921080
    Abstract: A hydraulic shock absorber for a vehicle comprising a hydraulic cylinder with a piston which divides the cylinder into an upper compartment and a lower compartment, a damping chamber, and a return chamber. A control valve is provided in the path from the damping chamber to the upper compartment. A shock sensor is provided to detect the shock to which the vehicle is subject. When the shock exceeds a predetermined level, the shock sensor will give a signal to the control valve to close it, thus ensuring the shock to be absorbed by a spring in the damping chamber.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: May 1, 1990
    Inventor: Chien H. Lin
  • Patent number: 4488748
    Abstract: An adjustable ski carrier having a flexible rope with two snap locks on each end. A handle provided on the rope has inwardly extending slots on each end of the handle. A pair of spaced apart apertures made on the opposite side of the handle are adapted to receive the rope from within a handle and extended over the top of the handle on the outside of it. A distance between the apertures is smaller than the distance between the most inward ends of the slots. The length of the rope in relation to the snap locks can be adjusted by extending the loop created by the part of the rope lying atop of the handle so that the device can be used for carrying the skis up the slope or down the slope in a balanced manner, and with the handle being fixed in a certain position by means of the slots in combination with the apertures and the loop. A knot created atop of the handle from the loop can be used to further ensure a fixed distance between the handle and the snap locks on the ends of the rope.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: December 18, 1984
    Inventor: Marc Burkes
  • Patent number: D308090
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: May 22, 1990
    Inventor: Shih-Yuan Yeh
  • Patent number: D308499
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: June 12, 1990
    Inventor: Louellen A. Berger
  • Patent number: D309036
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: July 3, 1990
    Inventor: Tsu-Chen Cheng
  • Patent number: RE33430
    Abstract: This perspiration band provides for more comfortable wearing and non-allergic reaction for its user, when attached to the existing band of a safety hat or other headgear. Primarily, it consists of a washable terrycloth strip, which includes snap fasteners for attachment to the existing hat band.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: November 13, 1990
    Inventors: Merle W. Nunnery, Judith Noel
  • Patent number: D312861
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: December 11, 1990
    Inventor: Michael Cerniglia
  • Patent number: D314022
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: January 22, 1991
    Assignee: Louisiana Children's Museum
    Inventor: C. Garland Robinette