Patents Represented by Attorney Edward L. Bell

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  • Pressure switch
    Patent number: 4456801
    Abstract: Increasing pressure acting under the thin plastic film diaphragm will move the actuator upward against the force of the outer reset spring until the upper inside washer/seat engages the outer washer/seat causing the inner trip spring to be compressed with further upward movement. Thereafter, switch actuation is opposed by both springs and the trip force is determined by both springs. As pressure decreases after the switch has tripped, the inside spring seat engages the shoulder on the actuator so only the reset spring is effective to determine the reset force. Both springs are assembled on the actuator prior to assembly in the pressure switch. The terminal structure is novel in the way it is positively located and accurately locates the switch.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: June 26, 1984
    Assignee: The Singer Company
    Inventors: Richard L. Lauritsen, David W. Kozerski
  • Pushbutton control for sewing machine
    Patent number: 4453478
    Abstract: Pushbuttons for controlling pattern sewing in a sewing machine are provided with latch plates which prevent the simultaneous retention in actuated positions of pushbuttons for selecting bight controlled patterns and pushbuttons for selecting combined bight and feed controlled patterns, and which are disposable to permit the retention in actuated positions of pushbuttons in either one or the other of said groups.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: June 12, 1984
    Assignee: The Singer Company
    Inventor: William Weisz
  • Handwheel clutch for sewing machines
    Patent number: 4453624
    Abstract: A clutch element fastened to the end of a sewing machine main shaft by a shouldered screw is slidable thereon to a first position wherein axially extending clutch fingers thereof extend through guide notches in an interlock element fixed to the main shaft by the shouldered screw, into axially aligned recesses in a belt driven handwheel so as to drive the sewing machine main shaft. In a second position of the clutch element, the axially extending fingers thereof are withdrawn from the recesses in the handwheel so that the sewing machine main shaft is not driven. Detent means are provided to maintain the clutch element in a selected position.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: June 12, 1984
    Assignee: The Singer Company
    Inventor: Thomas G. Graham
  • Thread tensioning module for a sewing machine
    Patent number: 4453480
    Abstract: A thread tensioning module for use on a sewing machine is provided with a plastic housing and with mechanism at the rear of the housing for receiving and applying frictional resistance to the movement of thread therethrough. The mechanism includes a pair of thread engageable members, one of which extends beyond the other and the side wall of the module on the thread entering side thereof to catch and enable thread to be positioned between the members.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: June 12, 1984
    Assignee: The Singer Company
    Inventors: Robert H. Larsen, Anthony Giaimo
  • Reinforcing for molded sewing machine frame
    Patent number: 4452159
    Abstract: A sewing machine bed which, because an open channel is required to accommodate a preassembled operating mechanism module, is reinforced to minimize objectionable deflection by reinforcing ribs formed on a cover plate and rigidly connected to reinforcing bosses on the sewing machine bed when the cover plate is secured thereon.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: June 5, 1984
    Assignee: The Singer Company
    Inventors: Leo E. McGann, Kenneth D. Adams
  • Basting stitch mechanism
    Patent number: 4452157
    Abstract: A basting stitch mechanism in which a latch is carried on the side of the needle bar carrier and is fashioned with a front portion extending in front of the needle bar terminating in a wedge, which wedge fits into a notch in a driving stud hinge pin extending about the needle bar and slidable thereon. The latch wedge connection to the driving stud eliminates the requirement for establishing a clearance between the needle bar carrier and the driving stud carrying the driving stud hinge pin. An extension spring connected between the sewing machine frame and a rear portion of the latch operates to increase the latching force as the needle bar is moved downwardly. By proper design of the wedge on the latch and the notch on the driving stud hinge pin, separation of the driving stud hinge pin from the latch may take place at some force designed to avoid breakage of the sewing needle.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: June 5, 1984
    Assignee: The Singer Company
    Inventors: Edilberto Cantada, Anthony D. Spasiano
  • Sewing machine control
    Patent number: 4453152
    Abstract: A control for a sewing machine is provided with a turnable outer knob for operating a potentiometer, and a slidable inner knob within the outer knob for moving a contact member to connect conductive paths on a printed circuit board which supports both the potentiometer and contact members.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: June 5, 1984
    Assignee: The Singer Company
    Inventors: Allan M. Dob, Richard Mead, Terry L. Wilson
  • Electrical cutout for under voltage or power loss conditions
    Patent number: 4451865
    Abstract: This disclosure relates to methods and apparatus for providing in a tool, appliance, or other electrically operated device the safety feature of requiring that the trigger or ON-OFF switch be in or returned to the OFF position before the tool will respond to placing the trigger or ON-OFF switch in the ON position.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: May 29, 1984
    Assignee: The Singer Company
    Inventors: Richard C. Warner, Thomas C. Laughon
  • Sewing machine cam controlled feed engaging and disengaging mechanism
    Patent number: 4448141
    Abstract: A sewing machine work feed regulating arrangement is disclosed including a manual control dial for setting the magnitude and direction of work feed and a pattern cam for automatically influencing feed magnitude and direction. Control cam means associated with the manual control dial and effective during a small angular dwell segment thereof influences separate follower means positively to effect either engagement or disengagement of the pattern cam control of the work feed.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: May 15, 1984
    Assignee: The Singer Company
    Inventors: Jan Szostak, Henry Schaeflern, Walter H. W. Marsh
  • Power head unit for carpet cleaning
    Patent number: 4447930
    Abstract: A power head unit for use with an external source of vacuum, which unit includes an outer housing defining a brush chamber, a vacuum chamber and a dry chemical carpet cleaning powder retaining chamber. The powder retaining chamber is fashioned with at least one slot extending adjacent the brush chamber which slot is closed off by a covering device such as a sliding door. The sliding door is fashioned with apertures the size of the at least one slot so that correspondence thereof will permit the dry chemical carpet cleaning material to escape from the slot. A powder dispensing roll is provided internally of the powder retaining chamber to convey the dry chemical carpet cleaning material to the slot.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: May 15, 1984
    Assignee: The Singer Company
    Inventors: William K. Glenn, III, John E. Jones, Gordon E. Laing, William R. Sumerau
  • Fabric repairing tool with cylindrical sheet metal cutter
    Patent number: 4446621
    Abstract: A fabric repairing tool is provided with a cylindrical sheet metal cutter having a helically extending sharp cutting edge. The cutter is affixed to an arbor which moves the cutter into a die mounted within a stationary sleeve wherein the arbor is slidably supported to cut out a piece from fabric held in the path of the cutter.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: May 8, 1984
    Assignee: The Singer Company
    Inventor: Wesley R. Peterson
  • Sewing machine needle clamp
    Patent number: 4444137
    Abstract: A sewing machine needle clamp is disclosed which will accommodate a sewing machine needle with a flatted butt in only one predetermined orientation by virtue of overlapping recesses formed by mold inserts which define a composite needle accommodating channel with filleted corners permitting needle insertion in only one predetermined orientation.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: April 24, 1984
    Assignee: The Singer Company
    Inventor: Gary W. Ponte
  • Starting position indicator for industrial sewing machine
    Patent number: 4444141
    Abstract: A position indictor for an industrial sewing machine, particularly a programmable industrial sewing machine, in which an elongate slender member may be selectively extended through a tubular conduit to have an end of the member adjacent the work supporting bed so as to indicate to an operator the starting position for a work material from which stitching may initiate. The elongate slender member, which is best implemented by a wire, may also be used as an edge guide or a pivot point. Extension of the member through the flexible conduit may be initiated by an air cylinder or solenoid, and may be initiated by program control to take place when the sewing needle and the sewing machine presser foot are elevated.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: April 24, 1984
    Assignee: The Singer Company
    Inventor: David Forrest
  • Arrangement for securing in a slide plate hold-down spring in a sewing machine bed
    Patent number: 4444139
    Abstract: A slide plate hold-down spring is provided with a depending portion which is received in a well in a sewing machine bed. The depending portion includes a window in which a protuberance on the bed engages the spring, and a curved length which engages a wall of the well.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: April 24, 1984
    Assignee: The Singer Company
    Inventors: Walter H. W. Marsh, John Patricia, Alfred Mack
  • Vertically stacked components in a control module for a sewing machine
    Patent number: 4442784
    Abstract: A control module for a sewing machine is provided with spaced apart plates, each to support a set of push-buttons arranged in multiple rows. The push-buttons include extensions which are contiguously stacked vertically for slidable movement and operate against aligned posts in actuated position of the push-buttons.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: April 17, 1984
    Assignee: The Singer Company
    Inventors: William Weisz, Raymond S. Tyburcy
  • Sewing machine bobbin for a vertical axis hook
    Patent number: 4442785
    Abstract: A sewing machine bobbin for a vertical axis hook is provided with a top and a bottom flanged section, and a fastener which both holds the sections together and is the driven member of a clutch through which the bobbin may be driven for bobbin winding.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: April 17, 1984
    Assignee: The Singer Company
    Inventors: Charles R. Odermann, Thaddeus J. Zylbert
  • Push-button control module for a sewing machine
    Patent number: 4441440
    Abstract: A control module for a sewing machine includes a rectangular array of push-buttons which are slidably mounted for linear motion in a frame and include rearwardly extending portions in a single line engageable with cam followers slidably movable thereby into engagement with cams rotatable in the frame.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: April 10, 1984
    Assignee: The Singer Company
    Inventor: William Weisz
  • Buttonhole sewing repair
    Patent number: 4438715
    Abstract: For a family sewing machine having the capabilities to complete a buttonhole in a single step, an arrangement is provided to permit an operator to reinitiate the buttonhole operation in the event of a thread breakage in the middle of the buttonhole, however, without necessitating stitching during that part of the buttonhole in which stitching has already been implemented. If a thread breakage takes place and after repair thereof the buttonhole may be repositioned to the initiating position and the buttonhole pattern may be reselected together with, for example, a selection of reverse feeding or any other input which is not normally selected during buttonholing. This dual selection is effective to signal the needle bar release logic to suspend endwise reciprocation of the needle bar.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: March 27, 1984
    Assignee: The Singer Company
    Inventors: William H. Dunn, William J. Edwards, Philip F. Minalga
  • Vacuum cleaner access plate
    Patent number: D273623
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: April 24, 1984
    Assignee: The Singer Company
    Inventor: Don W. Vermillion
  • Design for an upright vacuum cleaner
    Patent number: D274149
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: June 5, 1984
    Assignee: The Singer Company
    Inventor: Robert R. Gibson