Patent US3316658A successfully refreshed from Google Patents.
US4920992A
Expired / Lapsed
US
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Dental flossing apparatus
Assignee: Individual
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Filing: 1989-09-21
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Granted: 1990-05-01
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Expires: 2009-09-21
Abstract
Abstract An improved dental flossing apparatus comprising a handle and a removable yoke member. The handle comprises an elongated shank for gripping purposes and a head piece having a receiving means for receiving a removable yoke and threads on the outer surface of the head surrounding the receiving means. In the preferred embodiment, the receiving means is an opening having a spherical cavity for receiving a spherical ball and a tapered throat area. The handle further comprises a slidable and threaded collar which can be slid onto and screwed around the opening to tighten the removable yoke to the handle. The yoke comprises two arms for retaining a length of dental floss between them and a stem terminating in sphere for insertion into the receiving means. The sphere provides a universal orientation for the yoke since the sphere can be rotated to any desired spherical rotation relative to the handle. Once the sphere is placed inside the receiving means such as the spherical cavity, the collar can be slid onto the threads on the outer surface of the head of the handle and threaded into place so that the stem and sphere of the yoke are firmly and safely held in place.
Inventors
- 👤 Roberto Preciutti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:35
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/04; A61C15/046; A61C15/048
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
275 words
A dental flossing apparatus comprising: a. a handle member further comprising, (i) an elongated shank, (ii) a throat section extending from the elongated shank and extending to a head section, (iii) the head section including an internal opening at the top of the head section leading to an internal spherical cavity, the outer surface of the head section having threads thereon, (iv) a slidable collar which rests around the throat area of the head section and having internal threads for mating engagement with the threads on the head section; b. a removable yoke further comprising, (i) a first arm having a rounded upper tip, (ii) a second arm having a rounded upper tip, (iii) a base, (iv) the first and second arms joined to the base of the yoke at their lower ends and extending away from each other to form a V-shape with their respective upper tips at the top of the V shape, (v) a stem extending from the base in a direction away from the first and second arm, (vi) a sphere attached at the remote end of the stem, and (vii) a length of dental floss bonded to the rounded tips of the yoke so that the length of dental floss is stretched taut between the tips of the yoke; c. whereby the stem and sphere of the yoke are removably inserted into the opening in the head of the handle such that the sphere rests within the spherical cavity and the yoke is oriented at any angle relative to the head and and handle and the collar is threaded onto the head to securely engage the yoke to the head.
Claim 2
Dependent Claim
275 words
A dental flossing apparatus comprising: a. a handle member further comprising, (i) an elongated shank, (ii) a throat section extending from the elongated shank and extending to a head section, (iii) the head section including an internal opening at the top of the head section leading to an internal spherical cavity, the outer surface of the head section having threads thereon, (iv) a slidable collar which rests around the throat area of the head section and having internal threads for mating engagement with the threads on the head section; b. a removable yoke further comprising, (i) a first arm having a rounded upper tip, (ii) a second arm having a rounded upper tip, (iii) a base, (iv) the first and second arms joined to the base of the yoke at their lower ends and extending away from each other to form a V-shape with their respective upper tips at the top of the V shape, (v) a stem extending from the base in a direction away from the first and second arm, (vi) a sphere attached at the remote end of the stem, and (vii) a length of dental floss bonded to the rounded tips of the yoke so that the length of dental floss is stretched taut between the tips of the yoke; c. whereby the stem and sphere of the yoke are removably inserted into the opening in the head of the handle such that the sphere rests within the spherical cavity and the yoke is oriented at any angle relative to the head and and handle and the collar is threaded onto the head to securely engage the yoke to the head.
Claim 3
Dependent Claim
28 words
A dental flossing apparatus in accordance with claim 1 wherein said first and said second arm are offset at an angle relative to said stem of said yoke.
Claim 4
Dependent Claim
16 words
A dental flossing apparatus in accordance with claim 2 wherein said angle is approximately 30 degrees.
Claim 5
Dependent Claim
56 words
A dental flossing apparatus in accordance with claim 1 further comprising a retaining container having openings to retain a multiplicity of individual yokes with the tips of the arms of each yoke retained within a surface of the container to shield the dental floss and the stem of each yoke extending upwardly from the retaining surface.
Claim 6
Dependent Claim
263 words
A dental flossing apparatus comprising: a. a handle member further comprising, (i) an elongated shank, (ii) a throat section extending from the elongated shank and extending to a head section, (iii) the head section including an internal opening at the top of the head section leading to an internal spherical cavity, (iv) a slidable collar which rests around the throat area of the head section and having means for engaging the collar and tightening it about the head section; b. a removable yoke further comprising, (i) a first arm having an upper tip, (ii) a second arm having a, upper tip, (iii) a base, (iv) the first and second arms joined to the base of the yoke at their lower ends and extending away from each other to form a V-shape with their respective upper tips at the top of the V shape, (v) a stem extending from the base in a direction away from the first and second arm, (vi) a sphere attached at the remote end of the stem, and (vii) a length of dental floss bonded to the tips of the yoke so that the length of dental floss is stretched taut between the tips of the yoke; c. whereby the stem and sphere of the yoke are removably inserted into the opening in the head of the handle such that the sphere rests within the spherical cavity and the yoke is oriented at any angle relative to the head and and handle, and the collar is tightened about the head section to securely engage the yoke to the head.
Claim 7
Dependent Claim
263 words
A dental flossing apparatus comprising: a. a handle member further comprising, (i) an elongated shank, (ii) a throat section extending from the elongated shank and extending to a head section, (iii) the head section including an internal opening at the top of the head section leading to an internal spherical cavity, (iv) a slidable collar which rests around the throat area of the head section and having means for engaging the collar and tightening it about the head section; b. a removable yoke further comprising, (i) a first arm having an upper tip, (ii) a second arm having a, upper tip, (iii) a base, (iv) the first and second arms joined to the base of the yoke at their lower ends and extending away from each other to form a V-shape with their respective upper tips at the top of the V shape, (v) a stem extending from the base in a direction away from the first and second arm, (vi) a sphere attached at the remote end of the stem, and (vii) a length of dental floss bonded to the tips of the yoke so that the length of dental floss is stretched taut between the tips of the yoke; c. whereby the stem and sphere of the yoke are removably inserted into the opening in the head of the handle such that the sphere rests within the spherical cavity and the yoke is oriented at any angle relative to the head and and handle, and the collar is tightened about the head section to securely engage the yoke to the head.
Claim 8
Dependent Claim
28 words
A dental flossing apparatus in accordance with claim 5 wherein said first and said second arm are offset at an angle relative to said stem of said yoke.
Claim 9
Dependent Claim
16 words
A dental flossing apparatus in accordance with claim 6 wherein said angle is approximately 30 degrees.
Claim 10
Dependent Claim
56 words
A dental flossing apparatus in accordance with claim 5 further comprising a retaining container having openings to retain a multiplicity of individual yokes with the tips of the arms of each yoke retained within a surface of the container to shield the dental floss and the stem of each yoke extending upwardly from the retaining surface.
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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) | 1993-04-30 | 1993-10-30 | 1994-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-30 | 1997-10-30 | 1998-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-30 | 2001-10-30 | 2002-05-01 | $7700.00 | Window Closed / Lapsed |