Toilet – Toothpick
Reexamination Certificate
2000-03-22
2001-05-15
Lewis, Ralph A. (Department: 3732)
Toilet
Toothpick
C132S329000
Reexamination Certificate
active
06230718
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a toothpick convenient for carrying and improved in picking, and especially to a toothpick of which a picking portion is stretchable and contractible used for picking food residue at a gap between teeth. By the flexibility or recoverability from bending provided on the picking portion of the toothpick, the picking portion meets the curvature of the surfaces of teeth, so that the toothpick can effectively twisting scrape at the gaps between walls of teeth, residual food between teeth can be easily cleared off. The present invention has the industrial effect of lowering cost and capability of mass production by structural simplicity of the shank and the picking portion of the toothpick.
2. Description of the Prior Art
Toothpicks have had their long history of development; any slender rod capable of picking food residue between teeth can be defined as a toothpick. Take a bamboo toothpick customarily and widely used as an example, one end or both ends thereof are tips, they can pierce into the gaps between teeth to pick food residue. However, the tips can only pierce, they don't have the function of twisting scraping, hence efficiency of picking of the tips of the toothpick is limited.
Moreover, in the markets, toothpicks are generally packed in a big package or packed individually for sale. The toothpicks in a big package look too bulky for carrying, and finely packed single toothpick can not afford suitable amount in need, these often make inconvenience and trouble in utilization.
The defects stated above is the motive of study and developing of the present invention, and the inventor of the present invention provides the toothpick of the present invention based on his specific experience of years in contemplation of improvement of toothpicks.
SUMMARY OF THE INVENTION
The main object of the present invention is to provide a toothpick to improve picking capability of the toothpick over a conventional toothpick, and to allow a suitable amount of toothpicks to be parallelly arranged and received in a flat receiving sheet, so that convenience for carrying and using toothpicks can be obtained.
To obtain the aforesaid object of the present invention, in practice, the present invention concerns a toothpick comprised of a picking portion and a shank, and concerns a flat receiving sheet in favor of packing.
Wherein, folding of a plane sheet forms the flat receiving sheet, a plurality of toothpicks can be parallelly arranged and received in the flat receiving sheet. The flat receiving sheet is provided on one end thereof with a foldable cover for the purposed of protecting the toothpicks therein, and thereby forms a toothpick box to allow carrying of a suitable amount of toothpicks for use.
The picking portion of a toothpick is made of flexible metal or nonmetal line (such as stainless steel or Nylon line) with a diameter of 0.2-0.3 mm and is formed by bending as a unit. The picking portion is provided at least with a tip, two bending portions and an embedded portion. The picking portion is provided with flexibility and is recoverable after bending; the bending portions have the nature of springs to be freely stretchable and contractible. The picking portion meets the curvature of the surfaces of teeth by the flexibility and the nature of springs, so that the picking portion can effectively twisting scrape to clean the walls of teeth easily, the toothpick thereby has the strong effect of clearing off residual food.
The shank is made of plastic material, and is wholly in a flat shape in favor of holding by a user in cleaning teeth. The user can thereby more effectively control the angle and direction of the toothpick to get in and retract from the gaps between teeth with twisting and scraping. The tailing end of the shank is provided with a tearing portion to be easily torn off, thereby, when the shank is received in the receiving sheet, a user can conveniently tear it off for using a toothpick.
REFERENCES:
patent: 1382459 (1921-06-01), Bercovici
patent: 2411118 (1946-11-01), Schuster
patent: 2567408 (1951-09-01), Soderberg
patent: 3404707 (1968-10-01), Feld
patent: 3438486 (1969-04-01), Pinkas
patent: 4090649 (1978-05-01), Cichinski
patent: 4667860 (1987-05-01), Feuerman
patent: 4720026 (1988-01-01), Feuerman
patent: 5230356 (1993-07-01), Villas
patent: 5823208 (1998-10-01), Lin
patent: 6082999 (2000-07-01), Tcherny et al.
Doan Robyn Kieu
Lewis Ralph A.
Pro-Techtor Inter-national Services
LandOfFree
Toothpick convenient for carrying and improved in picking does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toothpick convenient for carrying and improved in picking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toothpick convenient for carrying and improved in picking will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2489966