Patents by Inventor Donald J. Stuart

Donald J. Stuart 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: 6960717
    Abstract: A nonrotating adjustable solar panel for optimizing cell charging of a portable message sign, comprising a movable frame, a message sign, a solar panel, a support post attached to the underside of the solar panel by a universal joint, and a mechanism for adjusting the angle and position of the solar panel comprising a pair of outwardly extending arms, a pair of threaded support rods, each rod extending through an aperture in the arm, and a handle for turning the rod. Each rod is coupled to the underside of the solar panel by a ball or universal joint. As each rod is turned, it raises or lowers a portion of the solar panel, providing tilting and pivoting, but not rotating motion for adjustment of the solar panel angle.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: November 1, 2005
    Assignee: American Signal Company
    Inventors: Donald J. Stuart, Patrick H. Ryan, Jr.
  • Publication number: 20030070708
    Abstract: A nonrotating adjustable solar panel for optimizing cell charging of a portable message sign, comprising a movable frame, a message sign, a solar panel, a support post attached to the underside of the solar panel by a universal joint, and a mechanism for adjusting the angle and position of the solar panel comprising a pair of outwardly extending arms, a pair of threaded support rods, each rod extending through an aperture in the arm, and a handle for turning the rod. Each rod is coupled to the underside of the solar panel by a ball or universal joint. As each rod is turned, it raises or lowers a portion of the solar panel, providing tilting and pivoting, but not rotating motion for adjustment of the solar panel angle.
    Type: Application
    Filed: July 2, 2002
    Publication date: April 17, 2003
    Inventors: Donald J. Stuart, Patrick H. Ryan
  • Patent number: 4070227
    Abstract: A machine for taping coils wound upon bobbins which includes an indexable turret wheel mounting a plurality of peripherally spaced mandrels dimensioned for slidable reception of the bobbins of a succession of coils, the turret traversing a loading station, a tape wrapping station, a wiping station and an unloading station. A tape applicator member at the wrapping station supports the leading end of the tape, the applicator being shiftable from a reference position to a pressing position in which the leading end of the tape is pressed against the side of the coil. Drive spindles are clutched to the mandrels in the wrapping and wiping stations for wrapping and wiping the tape. Fluid actuators having rack and pinion connections serve to index the turret wheel, shift the tape applicator, and rotate the coil in the wrapping and wiping stations.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: January 24, 1978
    Assignee: Midland Engineering and Machine Co.
    Inventor: Donald J. Stuart
  • Patent number: 3985311
    Abstract: A hand operated taping machine for winding protective tape upon a wire coil used in a relay, solenoid or the like in which a coil is chucked upon a spindle. Tape with a tacky adhesive is fed via a series of rollers terminating in a leading end which is supported upon an applicator pad adjacent the coil. The pad is manually pressed into engagement with the coil to tack the leading end. The spindle is rotated via a main drive shaft by a manual crank. A cutter blade is provided adjacent the pad. A first cam on the main drive shaft lowers the cutter blade and pad permitting the tape, under tension, to be manually severed below the level of the coil to form a tail and to position a new leading end on the pad. A second cam on the main drive shaft operates a wiper to wipe the tail down upon the coil, withdrawing the wiper as the pad is restored to its initial tape applying position in readiness for a new cycle.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: October 12, 1976
    Assignee: Midland Engineering and Machine Co.
    Inventor: Donald J. Stuart
  • Patent number: 3984276
    Abstract: A taping machine for applying a protective wrapping to small parts, particularly electronic parts such as capacitors, having a longitudinal axis. Permanently adhesive tape is fed from a supply roll onto a forwardly inclined table at the front of the machine. Below the front lip of the table are a pair of horizontally extending rollers vertically aligned with one another. Interposed between the lip of the table and the rollers is a reciprocated cutter blade. A third roller mounted upon a swingable arm is bodily movable in triangular relation with respect to the pair of rollers. The end of the tape extends to the lip of the table, sticky side up, so that a part may be manually pressed adheringly to the tape in a transversely extending direction. Interposed between the roll of tape and the table is a swingably mounted knurled roller engaging the sticky side of the tape and about which the tape is looped.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: October 5, 1976
    Assignee: Midland Engineering and Machine Co.
    Inventor: Donald J. Stuart