Manually held dental flossers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2006
Grant Date -
Jun 27, 2002
app pub date -
Oct 12, 2001
filing date -
Oct 13, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A dental flossing device is characterized by a flossing circuit comprised of a flossing supply spool and a take-up spool mounted to a housing. The floss feeds from the supply spool along a pair of prongs forming a fork extension of the handle and is stretched across the prongs and appropriately tensioned to be inserted into a users mouth for flossing. To maintain tension, a pair of ratchet pawls are jointly engageable with a ratchet mounted for co-rotation with the take-up spool. The pawls are offset relative to the ratchet teeth to ensure appropriate tension. Tension on the supply spool side of the flosser is achieved with a tension arm in constant engagement with tension teeth co-rotatably mounted with the spool. When a floss advancing trigger is not depressed, a brake pawl formed at one end of the trigger is spring biased into locking engagement with these teeth while the tension arm assures proper tension on the supply side. In an alternative preferred embodiment, only one tensioning ratchet pawl engages the ratchet mounted for co-rotation with the take-up spool. A different ratchet pawl, mounted to one end of a ratchet arm pivotally secured to the flosser housing beneath the ratchet, is engaged by the trigger to drivingly contact the ratchet to rotate the take-up spool. In this latter embodiment, the brake pawl is replaced with a projection formed on the trigger that is adapted to engage the supply spool tensioning ratchet to lock the ratchet in the released position of the trigger to prevent supply spool rotation and maintain the floss circuit in a tight condition.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- KOSSAK; MICHAEL;MICHAEL KOSSAK
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kossak, Michael | Chevy Chase, MD | 4 | 78 |
Kotowski, Paul | Foster, RI | 4 | 78 |
Tomellini, Dalita | Rehoboth, MA | 9 | 95 |
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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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