US4011658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for inserting dental floss through interproximal areas and method of using same
Assignee: Sunstar Americas Inc
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Filing: 1975-10-20
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Granted: 1977-03-15
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Expires: 1995-10-20
Abstract
Abstract A device for inserting dental floss in difficult-to-reach areas under dental bridges or splints, comprising a length of flexible material formed into a loop, the ends of which are bonded together over a substantial portion to provide a stiffened elongated guide portion. The floss is threaded through the loop and the device, with the guide portion leading, is passed under two connected teeth of a bridge through interproximal areas whereby the floss is inserted through such areas.
Inventors
- 👤 E. B. Tarrson
- 👤 R. Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/04; A61C15/045
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
A method of threading a long filament through an interstice comprising the steps of: a. forming a relatively large looped portion of soft and flexible material of fine diameter joined together to form a unitary elongated guide member adjacent to and integral with said loop, said material being soft and flexible enough to deform and fit through said interstice and thereafter springing back into the shape of the original large loop form; b. threading said long filament through said large looped portion; c. projecting said guide member through said interstice and pulling said guide until said loop and long filament pass completely through said interstice, whereby said loop may be relatively large to eliminate all threading problems and yet extremely flexible so that the loop may be deformed to be no larger in diameter than the interstice which it passes through, thereafter returning to its normal diameter; and d. removing said looped portion from its threaded association with said long filament.
Claim 2
Independent Claim
161 words
A method of threading a long filament through an interstice comprising the steps of: a. forming a relatively large looped portion of soft and flexible material of fine diameter joined together to form a unitary elongated guide member adjacent to and integral with said loop, said material being soft and flexible enough to deform and fit through said interstice and thereafter springing back into the shape of the original large loop form; b. threading said long filament through said large looped portion; c. projecting said guide member through said interstice and pulling said guide until said loop and long filament pass completely through said interstice, whereby said loop may be relatively large to eliminate all threading problems and yet extremely flexible so that the loop may be deformed to be no larger in diameter than the interstice which it passes through, thereafter returning to its normal diameter; and d. removing said looped portion from its threaded association with said long filament.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein step (a) includes the added steps of forming said looped portion and guide member from a single and unitary plastic material part.
Claim 4
Dependent Claim
35 words
The method of claim 1 wherein said looped portion is formed large enough in diameter so that a person threading said long filament through said looped portion can place his fingers through said looped portion.
Claim 5
Dependent Claim
55 words
The method of claim 1 wherein said interstice is a space between a human tooth and an adjoining tooth or structure, said looped portion and guide member being formed with a maximum diameter which enables both the loop and the guide to pass entirely through said interstice, with said long filament threaded through said loop.
Claim 6
Dependent Claim
69 words
The method of claim 1 wherein step (a) includes the added steps of: (a-1) forming a discrete length of plastic filament, (a-2) looping said discrete length so that the ends of said length are substantially adjacent each other; and (a-3) bonding said ends of said discrete length together along a section thereof to form said elongated guide while leaving said discrete length of filament unbonded in said looped portion.
Claim 7
Dependent Claim
15 words
The method of claim 5 wherein said discrete length of plastic filament is a monofilament.
Claim 8
Dependent Claim
34 words
The method of claim 5 wherein the step (a-1) includes the added step of forming said discrete length of plastic as a nylon monofilament having a cross section in the order of 0.0024 inches.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |