US3592203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental floss dispenser
Assignee: Individual
•
Filing: 1969-12-29
•
Granted: 1971-07-13
•
Expires: 1989-12-29
Abstract
Abstract This invention relates to improvements in a device for dispensing dental floss from a source of supply such as a spool by a clutch member which cooperates with a drive means for unwinding and feeding the floss to an exposed position exteriorly of the housing preparatory for use, the clutch member holding the floss taut while in use.
Inventors
- 👤 Bradford J Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/04; A61C15/046
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
A dental floss dispenser comprising a casing having a yoke, means movable relative to said casing providing access to the interior thereof, at least a pair of tensioning clutches positioned within said casing and including means to drive said clutches, said means to drive the clutches being accessible from the exterior of said casing, stationary boss means concentric with and adapted to cooperate with aT least one of said clutches for gripping or locking action, and yarn supply means positioned within said casing and arranged to furnish a supply of yarn to said tensioning clutches so that the yarn that passes through said yoke is tensioned thereby.
Claim 2
Dependent Claim
107 words
A dental floss dispenser comprising a casing having a yoke, means movable relative to said casing providing access to the interior thereof, at least a pair of tensioning clutches positioned within said casing and including means to drive said clutches, said means to drive the clutches being accessible from the exterior of said casing, stationary boss means concentric with and adapted to cooperate with aT least one of said clutches for gripping or locking action, and yarn supply means positioned within said casing and arranged to furnish a supply of yarn to said tensioning clutches so that the yarn that passes through said yoke is tensioned thereby.
Claim 3
Dependent Claim
22 words
A dental floss dispenser according to claim 1, wherein the clutch means are integral with the means arranged to drive the clutches.
Claim 4
Dependent Claim
25 words
A dental floss dispenser according to claim 1, wherein at least one of the clutches is disassemblable from the means arranged to drive the same.
Claim 5
Dependent Claim
23 words
A dental floss dispenser according to claim 1, wherein the boss means includes an annular body which is circumscribed by said clutch means.
Claim 6
Dependent Claim
26 words
A dental floss dispenser according to claim 1, wherein the clutch means include a peripheral surface portion and the boss means is arranged to cooperate therewith.
Claim 7
Dependent Claim
20 words
A dental floss dispenser according to claim 1, wherein the boss means straddle the means arranged to drive said clutches.
Claim 8
Dependent Claim
31 words
A dental floss dispenser as claimed in claim 4, wherein the boss is flattened into a chord to permit radial movement of the floss and movement of the clutch associated therewith.
Claim 9
Dependent Claim
23 words
A dental floss dispenser as claimed in claim 4, wherein at least one of said clutch means is constructed of a rubberlike material.
Claim 10
Dependent Claim
32 words
A dental floss dispenser as claimed in claim 4, wherein at least one of said clutch means includes inner and outer surfaces, at least one of which is provided with flexible teeth.
Claim 11
Dependent Claim
28 words
A dental floss dispenser as claimed in claim 9, wherein both surfaces of the clutch means are provided with flexible teeth and are arranged to rotate in unison.
References Cited (Backward Citations)
US2554526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |