Automated dental flosser
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United States of America Patent
Stats
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Jun 28, 1994
Grant Date -
N/A
app pub date -
Sep 24, 1992
filing date -
Sep 24, 1992
priority date (Note) -
Expired
status (Latency Note)
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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. A reversible DC motor (104) is drivingly connected to floss dispensing and take-up spools (98, 100) which are floss-connected to each end, respectively, of a tine supported floss span (96). The motor, energized by the alternating pulses, alternately reverses direction to reciprocate the floss span. A net transfer of floss from one spool to the other results from the longer pulses. A third embodiment (116) includes two ultrasonic transducers (127, 128) connected to floss-supporting tines (118). The transducers are mounted at right angles to each other for reciprocating the tines and floss span up and down and side to side.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- URSO, CHARLES L.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Urso, Charles L | Waltham, MA | 24 | 499 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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