US5499422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating head tooth brush
Assignee: Individual
•
Filing: 1995-01-05
•
Granted: 1996-03-19
•
Expires: 2015-01-05
Abstract
Abstract A manually rotatable head toothbrush with a minimum number of parts and utilizing properties of an elastomeric material in the construction thereof, so as to thus providing suitable resistance to rotation such that any desired orientation of brush head to handle can be maintained when the toothbrush is in use.
Inventors
- 👤 Rudi Lavazoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:02
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/02; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
254 words
A tooth brush comprising a brush head, a rivet, a friction disk, and an elongated handle having a first end comprising a terminal with an upper surface and a lower surface, and a second end, wherein: a) the terminal has a hole in its upper surface for receiving the rivet and a widened recess in its lower surface for receiving the friction disk, the center of the upper hole registering with the center of the widened recess in the lower surface of the terminal; b) the terminal is made of a compressible material without cold flow; c) the friction disk is partially recessed in the widened recess in the lower surface of the terminal; d) the brush head has a hole registering with the hole in the upper surface of the terminal and the widened recess in the lower surface of the terminal; and e) the rivet extends through the hole in the upper surface of the terminal, the friction disk, and into the hole in the brush head, said rivet having been hammered so as to compress the terminal and hold the terminal, the friction disk, and the brush head in close proximity, whereby the terminal being in a compressed state exerts pressure on the friction disk thus causing it to frictionally engage both the terminal and the brush head, whereby the brush head is rotatable with respect to the handle and is maintained in a desired orientation with respect to the brush handle by the frictional resistance supplied by the friction disk.
Claim 2
Dependent Claim
254 words
A tooth brush comprising a brush head, a rivet, a friction disk, and an elongated handle having a first end comprising a terminal with an upper surface and a lower surface, and a second end, wherein: a) the terminal has a hole in its upper surface for receiving the rivet and a widened recess in its lower surface for receiving the friction disk, the center of the upper hole registering with the center of the widened recess in the lower surface of the terminal; b) the terminal is made of a compressible material without cold flow; c) the friction disk is partially recessed in the widened recess in the lower surface of the terminal; d) the brush head has a hole registering with the hole in the upper surface of the terminal and the widened recess in the lower surface of the terminal; and e) the rivet extends through the hole in the upper surface of the terminal, the friction disk, and into the hole in the brush head, said rivet having been hammered so as to compress the terminal and hold the terminal, the friction disk, and the brush head in close proximity, whereby the terminal being in a compressed state exerts pressure on the friction disk thus causing it to frictionally engage both the terminal and the brush head, whereby the brush head is rotatable with respect to the handle and is maintained in a desired orientation with respect to the brush handle by the frictional resistance supplied by the friction disk.
Claim 3
Dependent Claim
17 words
The tooth brush of claim 1 wherein the terminal of the elongated handle comprises an elastomeric polymer.
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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) | 1999-03-19 | 1999-09-18 | 2000-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-19 | 2003-09-18 | 2004-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-19 | 2007-09-18 | 2008-03-19 | $7700.00 | Window Closed / Lapsed |