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Publication numberUS717594 A
Publication typeGrant
Publication dateJan 6, 1903
Filing dateFeb 15, 1902
Priority dateFeb 15, 1902
Publication numberUS 717594 A, US 717594A, US-A-717594, US717594 A, US717594A
InventorsWilliam J Miles Jr
Original AssigneeWilliam J Miles Jr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dental broach.
US 717594 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

No. 717,594. 7 lATENTBD JAN. 6,1903. w. J. MILES, JR. DENTAL BROAGH.



Itll rm: nonms pirzgrsfiou Punra'Lmm, WASHINGTON. v.1:

- not be required. The wire wrapping which Nrrn WILLIAM J. MILES, JR., OF MIDDLETOWN, OHIO.


SPECIFICATION forming part of Letters Patent No. 717,594, dated January 6, 1903.

Application filed February 15, 1902. Serial No. 94,267. (Ila model.)

To all whom, it may concern.-

Be it known that I, WILLIAM .LMILES, J r., a citizen of the United States, residing at Middletown, in the count-y of Butler and State of Ohio, have invented a new and useful Dental Broach, of which the following is a specification. v

My invention relates to certain improvements in the construction of dental instruments, and hasfor its principal object to provide a novel construction of broach, as hereinafter described, and particularly pointed out in the appended claim.

In the accompanying drawings, Figure 1 is a face view of a dental broach made in accordance with my invention. Fig. 2 is a similar view, partially in section, illustrating a broach having an engaging surface of somewhat diiferent character.

In carrying out my invention I employ a drawn steel wire of uniform diameter throughout its entire length. The wire is out into sections 1 of the proper length and is slightly pointed and provided with suitable barbs 2, the barbs and points being preferably formed at a single operation by means of a suitable stamping-die, the barbs being of any desired form or size to best suit the purpose for which they are intended.

In order to form a suitable handle by which the tool may be manipulated without materially diminishing its flexibility, I provide the upper portion of the Wire with a wrapping formed of a section of wire rolled or otherwise tightly wound around said wire 1 by any suitable machinery, the covering-wire being wound so tightly that any auxiliary soldering, brazing,or other auxiliary securing means will forms the handle is indicated at 3 in the drawings, and it will be noted that the lines of the coil are substantially transverse or at a right angle of the length of the wire 1, so that they will not interfere with any bending movement of the handle. For convenience the upper ends 4 of the wrapping may extend slightly over the upper end of the wire 1 to prevent the handle from slipping down on the wire when the tool is being inserted in a nerve-cavity.

In some cases the form of the operating end of the tool may be changed, as shown at 2 in Fig. 2. section of wire is passed between rollers and slightly flattened, its edges being provided with'barbs, and the flattened portion is then twisted after the manner of an auger.

The instrument as now manufactured is freely flexible from end to end, there being but little difference in the resistance ofiered to bending by the wrapping which forms the handle, and thus adding greatly to its usefulness and durability.

The length of the handle-wrapping in proportion to the length of the instrument may be increased or diminished in accordance with the character of the operating-surface, and various other changes in the form, size, and minor details may be made without departing from the spirit or sacrificing any of the advantages of my invention.

Having thus described my invention, What I claim is A dental broach comprising a practically straight untwisted section of wire of uniform diameter from end to end and freely flexible throughout its length, and a handle portion formed of a section of wire wound or coiled approximately at right angles around the untwisted wire and forming a freely-flexible handle.

In testimony that I claim the foregoing-as my own I have hereto affixed my signature in the presence of two Witnesses.




In a tool of this kind the end of the

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3330040 *Feb 20, 1964Jul 11, 1967Henry KahnMethod of determining the proper depth of penetration of a root canal file
US3578745 *May 6, 1968May 18, 1971Garnier MarcelDental instrument
US4443193 *Feb 8, 1983Apr 17, 1984Roane James BEndodontic instrument
US4536159 *Jan 24, 1984Aug 20, 1985Roane James BEndodontic instrument
US4611508 *May 14, 1985Sep 16, 1986Roane James BEndodontic instrument
US4824370 *Aug 25, 1988Apr 25, 1989Micro-MegaDental drill
US6179617 *Nov 12, 1998Jan 30, 2001Clifford J. RuddleMicrobrush for endodontic use
US6638067 *Sep 4, 2001Oct 28, 2003Ultradent Products, Inc.Flocked endodontic files and other flocked devices
US6981869Apr 22, 2003Jan 3, 2006Ruddle Clifford JInjection molded endodontic brush
US7198623Jan 10, 2003Apr 3, 2007Ultradent Products, Inc.Fiber-coated dental infusor systems and methods of use
US7311522Oct 13, 2004Dec 25, 2007Miltex Technology CorporationEndodontic instruments and method of manufacturing same
US7677296Mar 23, 2007Mar 16, 2010Cloudland Institute LlcPrecision cast dental instrument
US9226802Jan 2, 2012Jan 5, 2016Ryan J. McCaffertyPolymeric instrument for cleaning canals in endodontic procedures
US20040121283 *Sep 3, 2003Jun 24, 2004Mason Robert M.Precision cast dental instrument
US20040138642 *Jan 10, 2003Jul 15, 2004Fischer Dan E.Fiber-coated dental infusor systems and methods of use
US20040214135 *Apr 22, 2003Oct 28, 2004Ruddle Clifford J.Injection molded endodontic brush
US20050100859 *Oct 13, 2004May 12, 2005Graybill Lonnie M.Endodontic instruments and method of manufacturing same
US20070184406 *Mar 23, 2007Aug 9, 2007Cloudland Institute, LlcPrecision cast dental instrument
Cooperative ClassificationA61C5/023