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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
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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 23:14
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.

References Cited (Backward Citations)

GB190522340A Cited
CH50937A Cited
GB191005706A Cited
US1188614A Cited
US1442363A Cited
GB202540A Cited
US1675139A Cited
US1752393A Cited
US2047613A Cited
US2618801A Cited
US5165135A Cited

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

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