Patent US3885579A successfully refreshed from Google Patents.
US3885579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental floss holder
Assignee: Individual
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Filing: 1973-07-18
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Granted: 1975-05-27
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Expires: 1993-07-18
Abstract
Abstract An improved dental floss holder having an elongated body provided with a pair of opposed, spaced legs at one end thereof to present a span of dental floss to be used for cleaning the regions between adjacent pairs of teeth. The legs extend laterally from the body and are substantially perpendicular to the longitudinal axis. The dental floss is wound on a spool carrier by the body and extends therethrough to the legs. An improved lock is provided on the body to prevent movement of the floss from the spool toward the legs. Means is provided to hold the outer end of the floss when the span extends across the legs.
Inventors
- 👤 Leonard F Navrat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:31
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/04; A61C15/046
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
281 words
A dental floss holder comprising: an elongated, generally longitudinal straight body having a pair of ends and means at one end thereof for holding a spool of dental floss, there being a passage extending longitudinally through the body for guiding a stretch of dental floss from a spool of Floss at said one end to the opposite end of the body, said body further having a bore intermediate its ends, said bore extending transversely of said passage and being in communication therewith, said body having an annular, beveled surface surrounding the outer end of the bore, a pair of spaced arms rigid to the body at said opposite end and extending laterally therefrom, the outer ends of the arms adapted to position a span of dental floss for insertion into the mouth and into the region between a pair of adjacent teeth; and a pin shiftably mounted within the bore for longitudinal movement relative thereto and having a transverse dimension less than a corresponding transverse dimension of the bore to permit a doubled portion of said stretch of floss from said spool to extend laterally of the passage through the bore to a location exteriorly of the body, around the outer end of the pin, then back into and through the bore and into and through said passage to said opposite end, said pin having an annular, beveled face substantially complemental to said beveled surface of said body and movable longitudinally thereof for wedging the doubled portion of said floss stretch against the body when tension is applied to the span bridging the outer ends of the arms to thereby lock the span against any substantial movement relative to said body.
Claim 2
Dependent Claim
281 words
A dental floss holder comprising: an elongated, generally longitudinal straight body having a pair of ends and means at one end thereof for holding a spool of dental floss, there being a passage extending longitudinally through the body for guiding a stretch of dental floss from a spool of Floss at said one end to the opposite end of the body, said body further having a bore intermediate its ends, said bore extending transversely of said passage and being in communication therewith, said body having an annular, beveled surface surrounding the outer end of the bore, a pair of spaced arms rigid to the body at said opposite end and extending laterally therefrom, the outer ends of the arms adapted to position a span of dental floss for insertion into the mouth and into the region between a pair of adjacent teeth; and a pin shiftably mounted within the bore for longitudinal movement relative thereto and having a transverse dimension less than a corresponding transverse dimension of the bore to permit a doubled portion of said stretch of floss from said spool to extend laterally of the passage through the bore to a location exteriorly of the body, around the outer end of the pin, then back into and through the bore and into and through said passage to said opposite end, said pin having an annular, beveled face substantially complemental to said beveled surface of said body and movable longitudinally thereof for wedging the doubled portion of said floss stretch against the body when tension is applied to the span bridging the outer ends of the arms to thereby lock the span against any substantial movement relative to said body.
Claim 3
Dependent Claim
27 words
A dental floss holder as set forth in claim 1, wherein the pin has a head at its outer end, said head having an outer, floss-receiving kerf.
Claim 4
Dependent Claim
24 words
A dental floss holder as set forth in claim 1, wherein the pin extends through the body and projects laterally from opposed sides thereof.
References Cited (Backward Citations)
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Cited
US1214362A
Cited
US1417518A
Cited
US1644390A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |