Patents Assigned to DynaProducts, Inc.
  • Patent number: 5816271
    Abstract: A flosser includes a frame (2) having a pair of tines (42) mounted on it for supporting a span of floss (62). At least one of pair the tines is pivotally supported for moving toward and away from the other of the pair of tines. Gear-driven capstans (24, 26) are provided for reciprocating the span of floss longitudinally between the tines, while a cam (9) and cam follower (11) act on a lever (32) for reciprocating the tines vertically. A spring (48) urges the tines to move laterally apart to an open position. Each of a pair of engaged sector gears (46) is fixed to a respective tine so that lateral movement of the tines is symmetrical. The spring is adjustable so that when the moving floss span encounters tooth resistance, floss tension increases to overcome the spring force and move the tines toward a closed position. The bulbs (50), which contain rollers (54), are mounted to swivel so the floss span can move in any direction.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: October 6, 1998
    Assignee: Dynaproducts, Inc.
    Inventor: Charles L. Urso
  • Patent number: 5769102
    Abstract: An automated dental cleaner (320) comprises a subassembly (324) having a pair of pivotally supported spaced tines (336) for supporting a movable floss span (338) therebetween. A pair of capstans (346, 352) are provided for drivingly reciprocating the floss span. Floss supply and take-up spools (340, 342) are arranged for continuously replacing the span. A main assembly (322) includes a housing containing a motor-driven multi-function transmission for driving the capstans and take-up spool, and for reciprocating the tines vertically. The main assembly and the subassembly are detachably connectable to each other for expedient replacement of the subassembly by a user. An additional feature on each tine includes a bracing pad (424) shaped for bracing the fork on teeth and gums. Brush bristles (426, 428) added to the tines help to inhibit fork lateral motion and enable the cleaner to floss and brush teeth simultaneously.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: June 23, 1998
    Assignee: DynaProducts, Inc.
    Inventor: William H. Zebuhr
  • Patent number: 5762078
    Abstract: The present invention comprises a flosser head (16), detachably connectable to a motorized toothbrush driver (12). A fork portion (20) of the head includes a pair of spaced tines (24) for supporting a movable floss span (22) therebetween. Floss supply and take-up spools (30, 32) are rotatably mounted to the head for replacing the span. A ratchet (42) is arranged to drive the take-up spool by translation of relative motion between the driver and head or the driver and fork, thereby progressively advancing the span. When actuated, the driver reciprocates the fork, or the entire head, for flossing teeth and for continuously replacing the span. The flosser head is interchangeable with a toothbrush head on the driver, so the combination is a comprehensive dental cleaner.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: June 9, 1998
    Assignee: Dynaproducts, Inc.
    Inventor: William H. Zebuhr
  • Patent number: 5749380
    Abstract: The present invention automated dental cleaner includes a housing and a pair of spaced tines supported on the housing. The tines hold a length of dental floss therebetween to form a span of floss. A bracing fork having a pair of bracing tines for straddling teeth braces the dental cleaner against the teeth, thereby allowing the floss to be reciprocated by a motorized drive.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: May 12, 1998
    Assignee: Dynaproducts, Inc.
    Inventor: William H. Zebuhr
  • Patent number: 5722440
    Abstract: A bite device for dental flossers having a fork which supports a floss span between tines of the fork. The bite device includes a bite member (10) having a bite surface (21) on one side and a stop guard (24) on an opposite side. The bite member is movably supported between the fork tines such that the member and the fork can move up and down relative to each other. The member is connected to the fork such that a user biting on the bite surface can drive the floss span through a tight interdental gap wherein the stop guard engages a user tooth adjacent the floss span to prevent over-travel of the span thereby preventing floss impact against user gums. When the bite is released, the bite member moves to a neutral position to allow a full range of flossing motion.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 3, 1998
    Assignee: DynaProducts, Inc.
    Inventor: Charles L. Urso
  • Patent number: 5647385
    Abstract: The present invention automated dental cleaner includes a housing and a pair of spaced tines supported on the housing. The tines hold a length of dental floss therebetween to form a span of floss. A bracing fork having a pair of bracing tines for straddling teeth braces the dental cleaner against the teeth, thereby allowing the floss to be reciprocated by a motorized drive.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: July 15, 1997
    Assignee: DynaProducts Inc.
    Inventor: William H. Zebuhr
  • Patent number: 5323796
    Abstract: An automated dental flosser (10) comprises a pair of pivotally supported tines (18) which support a movable floss span (17). A pair of rotatably supported subcapstans (38, 40) are floss-connected to each end of the floss span, respectively, and are alternately driven to reciprocate the span longitudinally. A floss dispensing spool (50) and a floss take-up spool (56), floss-connected to respective subcapstans, dispense and take up floss. A floss-engaging portion of each subcapstan differs from the other in diameter to result in a net transfer of the floss from one spool to the other. Means for reciprocating the tines moves the span up and down. A pair of stationary shield tines (16) shield the user's teeth from the reciprocating tines. A second embodiment (90) includes an astable pulse generator (106) that generates a train of pulses of alternately reversing electric charge. Pulses of one charge are of longer duration than those of the other charge.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: June 28, 1994
    Assignee: DynaProducts, Inc.
    Inventor: Charles L. Urso