US3563253A - Toothpicks - Google Patents

Toothpicks Download PDF

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Publication number
US3563253A
US3563253A US736316A US3563253DA US3563253A US 3563253 A US3563253 A US 3563253A US 736316 A US736316 A US 736316A US 3563253D A US3563253D A US 3563253DA US 3563253 A US3563253 A US 3563253A
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United States
Prior art keywords
toothpick
toothpicks
apex
face
tapered
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US736316A
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English (en)
Inventor
Rolf Barman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANODENT KONG OSCARSGT 45 BERGEN NORWAY A CORP OF NORWAY AS
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Individual
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Assigned to SANODENT A/S,KONG OSCARSGT. 45, BERGEN, NORWAY A CORP OF NORWAY reassignment SANODENT A/S,KONG OSCARSGT. 45, BERGEN, NORWAY A CORP OF NORWAY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BARMAN, ROLF
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C15/00—Devices for cleaning between the teeth
    • A61C15/02—Toothpicks

Definitions

  • VINVENTOR ROLF BAP/MAN TOOTHPICKS This invention relates to toothpicks.
  • a conventional type of toothpick made of wood and having a substantially triangular cross section is marketed in strip form with toothpicks arranged parallel to the sides of one another as a connected unit, so that they can be broken off therefrom singly as required.
  • the individual toothpicks are wedge shaped and are manufactured in the form of a correspondingly wedge shaped board, a flat end surface of the latter and a flat bottom side both being partly broken through by V-shaped grooves, extending in a straight line, which are formed in the upper side in a suitable manner.
  • the present invention provides a toothpick of essentially triangular cross section and tapered at both ends,
  • one or both of the apex edge and base thereof having an outwardly curved contour.
  • the toothpick tapers more abruptly at one end than the other and the two sides thereof connecting the base face with the apex edge are of outwardly concave form.
  • a toothpick board comprises a plurality of toothpicks as described in the last two preceding paragraphs, said toothpicks being arranged in parallel side-by-side relationship and interconnected at positions approximately centrally of their lengths.
  • Toothpicks according to this invention also include those made by dividing a toothpick, as described in the aforementioned preceding paragraphs, at its center and transversely of its longitudinal axis.
  • toothpicks can be made from a variety of materials, including plastics, although wood has proven to be especially convenient.
  • the invention also includes a method of manufacturing toothpicks of essentially triangular cross section and tapered at both ends which comprises the steps of:
  • toothpicks being formed, in step (a), with apex edges of outwardly curved contour and, instep (b), with base faces which are substantially flat, or vice versa.
  • the grooves are cut to a minimum depth at positions substantially at the center of the eventual toothpicks in step (a) and, in step (b), the toothpicks are separated from the raw material by cutting just inside said positions so that they are only interconnected at said posittons.
  • Toothpicks which are tapered at both ends are twice as advantageous as compared with conventional toothpicks which are only tapered at one end.
  • the toothpicks can be readily constructed to suit individual requirements.
  • one and the same toothpick can be employed to good advantage for small and large intermediate tooth spaces, it will be appreciated that toothpicks having one end abruptly tapered while the other is tapered more thinly, are especially useful.
  • FIG. 1 is a schematic representation of a first cutting step in a process of manufacturing toothpicks in accordance with the invention
  • FIG. 2 is a schematic representation similar to FIG. I showing the raw material prior to the beginning of the second cutting step
  • FIG. 3 is a side view of a toothpick constructed in accordance with the invention.
  • FIG. 4 is a section on the line IV-IV of FIG. 3;
  • FIG. 5 is a plan of the toothpick of FIGS. 3 and 4;
  • FIG. 6 is a longitudinal section through a toothpick board showing the interconnecting portion between parallel toothpicks in section;
  • FIG. 7 is a schematic representation in perspective showing toothpicks manufactured in accordance with another embodiment of the invention.
  • FIG. 8 is a side view of a toothpick having a curved base according to the invention.
  • FIG. 1 there is shown a first cutting step as applied to a wood stock or raw material 10 in the manufacture of toothpicks 11 as illustrated in FIG. 2.
  • the wood stock 10 is moved with a particular curved motion past a cutting tool 12 having teeth 13 which form substantially V-shaped grooves therein.
  • the wood stock is moved from left to right in a compound movement which is illustrated by the straight arrows l4 and 15.
  • the wood stock thus moves in a first movement tangentially relative to the cutting tool as illustrated by the arrow 14 and, at the same time, in another direction radially towards and away from the cutting tool as illustrated by the double arrow 15.
  • On rotating the cutting tool executes, in a relative movement along the one side face of the wood stock a bent or curved line longitudinally of the toothpicks to be produced.
  • this relative movement there is produced in the wood stock a series of spaced apart, parallel V-shaped grooves 17 of uniform depth having a curved or bent contour.
  • the relative movement of the wood stock in relation to the cutting tool can be achieved in different ways.
  • the wood stock needs only be moved in the straight line shown by the arrow 14, while the cutting tool executes the movements, which are shown by the arrows 15 and 16.
  • the wood stock can remain at rest while the cutting tool executes the necessary movements.
  • FIGS. I and 2 only a somewhat schematic manufacture is illustrated. For instance, control means and supporting means for the wood stock are not shown since there are available many different arrangements for the control and support of such relatively moveable parts.
  • the curved or bent contour of the toothpicks is brought about exclusively by means of the said cutting operation.
  • An essential advantage resides in the fact that the toothpicks can be finally produced in a subsequent working operation by carrying out a simple separating or dividing operation in a suitable manner at a suitable level along the bottomside of the toothpicks.
  • FIG. 2 there is shown such a plane or flat dividing out which can be produced by means of a band saw, band knife or the like (not shown).
  • the dividing cut is illustrated by the dotted line 18 and is situated such that there are formed suitably tapered toothpick ends at each end of each toothpick, and at the same time, the cut is located such that the "toothpicks are separated from one another during the said separating or dividing operation. It is evident, that the dividing cut is arranged at the bottom" of the grooves 17 or more precisely just outside the bottom of the grooves at that position where the top edge of the toothpicks projects furthest outward from the wood stock.
  • FIG. 2 there is indicated a toothpick 11 with substantially uniformly tapered ends
  • FIGS. 3-5 there is shown a toothpick produced in a manner corresponding to that shown schematically in FIG. 1 and 2 but having a somewhat differing form. Initially, it must be pointed out that the toothpick is produced with an abruptly bent end 11a as shown at the right in FIG. 3 and with a thinner outwardly extending end 11b which is shown at the left in FIG. 3, while there is a thinner curved transition llc at the top edge of the toothpick. Correspondingly, it is evident from the FIG.
  • end 11a is more abruptly tapered than at the end 11b, so that there is obtained a relatively strong abruptly tapered end 11a at the one end of the toothpick and a thinner tapered, but somewhat more yielding, end 11b at the opposite end of the toothpick.
  • the two different toothpick ends can be utilized for different purposes; for example, the one for large intermediate tooth spaces and the other for small intermediate tooth spaces.
  • FIG. 4 side faces 11d and He ofthe toothpick are shown extending together towards the top edge 11f of the toothpick in an outwardly concave manner.
  • the toothpick can thus adapt itself according to the shape of the teeth just at the gum.
  • the toothpick 11 has a plane bottom side 11g.
  • FIG. 6 there is illustrated a toothpick 21 having substantially the same shape as the toothpick in FIGS. 35 except that individual toothpicks, following the dividing operation from the wood stock, hang together with one another in a zone 22 roughly at their respective centers and in the form of a toothpick board from which the individual toothpicks can be broken off as required.
  • the toothpicks 21 are formed with an abruptly curved and tapered end 210 and a thinner curved and tapered end 2112 and with a plane bottom or base side 21d with outwardly concave side faces.
  • the dividing cut is located somewhat within the dividing plane 18 shown in FIG. 2 so that there is provided a connecting zone 22 of material between the parallel toothpicks arranged in side-by-side relationship.
  • FIG. 7 there is shown an alternative form of manufacture Y in which an elongated toothpick material 30 is led in a straight line movement illustrated by the arrow 31, past a cutting tool 32 with a series of teeth 33.
  • the cutting tool is moved towards and away from the toothpick raw material 30 as shown by the arrows 34, at the same time as it rotates as shown by the arrow 35.
  • a suitable distance after the cutting tool 32, a band knife 39 executes the said dividing operation corresponding to that which is illustrated in FIG. 2.
  • the direction of movement of the band knife is shown by the arrow 40.
  • FIG. 40 The direction of movement of the band knife
  • toothpicks in board form when the dividing cut is placed suitably far into the wood stock. It is also possible to produce several such toothpick boards in succession as a combined unit in strip form.
  • An advantage of such" a mode of production is that a larger number of toothpick units can be handled in a simple manner in a subsequent working operation; for example, when submerging in an impregnation bath of the like for after treatment of the toothpicks.
  • the curved or bent contour of the toothpicks can be formed at the bottom side face 11h (FIG. 8) of the toothpick by means of a suitable dividing cut or, if desired, by means of an extra cutting operation.
  • Such a curved or bent contour on the bottom side of the toothpick can be formed in addition to or in place of the bent or curved contour for the V-shaped grooves on the open or upper side of the toothpick.
  • toothpick according to claim 1 wherein the toothpick tagers more abruptly at one end than the other
  • toothpick according to claim 1 wherein the two sides thereof connecting the base face with the apex edge are of outwardly concave form.
  • a toothpick according to claim 2 wherein the two sides thereof connecting the base face with the apex edge are of outwardly concave form.
  • a toothpick comprising a plurality of toothpicks according to claim 1, in which the toothpicks are arranged in parallel side-by-side relationship and are interconnected at positions approximately centrally of their lengths.
  • each said side has an outwardly concave form.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Table Equipment (AREA)
US736316A 1967-06-19 1968-06-12 Toothpicks Expired - Lifetime US3563253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK316767AA DK115881B (da) 1967-06-19 1967-06-19 Fremgangsmåde til fremstilling af tandstikkere.

Publications (1)

Publication Number Publication Date
US3563253A true US3563253A (en) 1971-02-16

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ID=8119846

Family Applications (1)

Application Number Title Priority Date Filing Date
US736316A Expired - Lifetime US3563253A (en) 1967-06-19 1968-06-12 Toothpicks

Country Status (8)

Country Link
US (1) US3563253A (fi)
CH (1) CH483830A (fi)
DK (1) DK115881B (fi)
FI (1) FI53933C (fi)
GB (1) GB1229838A (fi)
IS (1) IS867B6 (fi)
NO (1) NO123102B (fi)
SE (1) SE328984B (fi)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779256A (en) * 1971-10-20 1973-12-18 A Maloney Oral hygienic device
US3978872A (en) * 1975-03-12 1976-09-07 Bond Jesse H Toothpick
US4135528A (en) * 1977-03-31 1979-01-23 Marvin M. Stark Research Foundation Interdental stimulator
US4159182A (en) * 1977-11-18 1979-06-26 Catherine E. Buck Combination toothpick and beverage stirrer
US4660583A (en) * 1984-07-11 1987-04-28 Kleen-Piks Inc. Interdental stimulator
WO1988001884A1 (en) * 1986-09-19 1988-03-24 Terasaki Paul I Sniffing stick
US4846200A (en) * 1983-01-17 1989-07-11 Wiley Larry J Periodontal pocket cleaner
US20080241787A1 (en) * 2007-03-27 2008-10-02 Gyula Julius Hegedus Dental wedges and methods
US20100294303A1 (en) * 2008-05-27 2010-11-25 Sung-Chul Son Toothpick
US20170265976A1 (en) * 2016-03-18 2017-09-21 Ting-Ting Shih Comb-Shaped Toothpick Structure and Method for Manufacturing Same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477194A (en) * 1945-08-03 1949-07-26 Lactona Inc Toothpick
US2527857A (en) * 1948-06-10 1950-10-31 Ronald M Strachan Dental stimulator
FR1269529A (fr) * 1960-09-30 1961-08-11 Collo Rhein Collodium G M B H Cure-dent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477194A (en) * 1945-08-03 1949-07-26 Lactona Inc Toothpick
US2527857A (en) * 1948-06-10 1950-10-31 Ronald M Strachan Dental stimulator
FR1269529A (fr) * 1960-09-30 1961-08-11 Collo Rhein Collodium G M B H Cure-dent

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779256A (en) * 1971-10-20 1973-12-18 A Maloney Oral hygienic device
US3978872A (en) * 1975-03-12 1976-09-07 Bond Jesse H Toothpick
US4135528A (en) * 1977-03-31 1979-01-23 Marvin M. Stark Research Foundation Interdental stimulator
US4159182A (en) * 1977-11-18 1979-06-26 Catherine E. Buck Combination toothpick and beverage stirrer
US4846200A (en) * 1983-01-17 1989-07-11 Wiley Larry J Periodontal pocket cleaner
US4660583A (en) * 1984-07-11 1987-04-28 Kleen-Piks Inc. Interdental stimulator
WO1988001884A1 (en) * 1986-09-19 1988-03-24 Terasaki Paul I Sniffing stick
US20080241787A1 (en) * 2007-03-27 2008-10-02 Gyula Julius Hegedus Dental wedges and methods
US7976308B2 (en) * 2007-03-27 2011-07-12 Gyula Julius Hegedus Dental wedges and methods
US20100294303A1 (en) * 2008-05-27 2010-11-25 Sung-Chul Son Toothpick
US20170265976A1 (en) * 2016-03-18 2017-09-21 Ting-Ting Shih Comb-Shaped Toothpick Structure and Method for Manufacturing Same
US9993320B2 (en) * 2016-03-18 2018-06-12 Ting-Ting Shih Comb-shaped toothpick structure and method for manufacturing same

Also Published As

Publication number Publication date
DK115881B (da) 1969-11-17
FI53933C (fi) 1978-09-11
GB1229838A (fi) 1971-04-28
FI53933B (fi) 1978-05-31
CH483830A (de) 1970-01-15
SE328984B (fi) 1970-09-28
IS1743A7 (is) 1968-08-12
NO123102B (fi) 1971-09-27
IS867B6 (is) 1974-06-28

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Owner name: SANODENT A/S,KONG OSCARSGT. 45, BERGEN, NORWAY A C

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BARMAN, ROLF;REEL/FRAME:004285/0098

Effective date: 19840713