|Publication number||US1275889 A|
|Publication date||Aug 13, 1918|
|Filing date||Mar 9, 1917|
|Priority date||Mar 9, 1917|
|Publication number||US 1275889 A, US 1275889A, US-A-1275889, US1275889 A, US1275889A|
|Inventors||Ervin J Flander|
|Original Assignee||Ervin J Flander|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (21), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
E. 1. FLANDER.
APPLlCATlON FILED MAR. 9. 1917.
Lzw. Patented. Aug. 13, 1918.
a trane 1,1
n :mums Pers/1s co. nora-umm wAsmNcmN, u. c.
ERVIN J'. FLANDER, 0F ONEEA, NEW' YORK.
Specification of Lettere Patent.
Patented Aug. 13, 1918.
Application filed March 9, 1317. Serial No. 153,725.
To all whom t may concern.'
Be it known that I, ERVIN J. FLANDER, a citizen of the United States, and resident of Oneida, in the county of Madison and State of New York, have invented certain new and useful Improvements in Augers, of which the following is a specification.
his invention relates to improvements in detachable bits and it is the dominant object of the invention to provide detachable cutters for the bit, whereby, different combinations of cutters varying in size may be vplaced upon the bit shank for boring holes of the desired diameters.
The improvements in the details and arrangement of parts will be apparent from an inspection of the accompanying drawings, in connection with the specific descri tion hereinafter contained, and wherein tige preferred embodiment of the invention is disclosed for the purpose of imparting a full understanding of the same.
In the drawings:
Figure l is a side elevation of a bit with my improved cutter applied thereto;
Fig..2 is a horizontal section through the cutter; and
Fig. 3 is a detail in perspective of one of the cutters.
Similar characters of reference are employed in all of the above described views to indicate corresponding parts.
Referring now more specifically to the several gures of the said drawings, there is provided the usual bit shank, designated l, the upper extremity of which is tapered as at 2 in order that the same may be in serted into the conventional stock.Y An enlarged portion 3 is formed upon the lower extremity of the bit shank l and is provided topics apparent.
of this patent may be obtained for ve cents each, by
with a the purpose of Cutters 4: and 5 having pairs of spaced apart openings 6 formed therein, corresponding to the openings in the enlarged portion 3 of the shank l are adapted to be secured thereto through the medium of screws 7. As will be noted2 one of the cutting blades is provided with a scoring cutter while the remaining cutter is provided with a centering point and a lifting cutter.
By detachably engaging the cutters 4 and 5 with the enlarged portion 3 of the shank l, it is to be understood, that cutters varying in size may be arranged upon the bit to permit the boring of holes of different diameters, thus, obviating the necessity of additional outlay for bits of different size.
bviously, the construction shown is capable of considerable modication and such modification as is within the scope of my claim, I consider within the spirit of my invention.
auger, including, in combination with a shank having an enlarged Hat head, a plurality of cutter blades detachably secured to the opposite sides of said head andprojecting beyond the ends of the same, one of said blades having a centering point and an obliquely disposed lifting cutter provided with a curved cutting edge formed integral therewith, and the remaining blade having a scoring cutter formed on the outer end of the same.
In testimony whereof, I afix my signature hereto.
ERVIN J. FLANDER.
addressing the Commissioner of Patents,
Washington, D. 0.
which will be presently
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7140814||Apr 30, 2003||Nov 28, 2006||Irwin Industrial Tool Company||Spade-type drill bit having helical configuration|
|US7416371||May 2, 2005||Aug 26, 2008||Irwin Industrial Tool Company||Wood boring bit with increased speed, efficiency and ease of use|
|US7473056||Oct 20, 2005||Jan 6, 2009||Irwin Industrial Tool Company||Spade bit|
|US7625160||Mar 2, 2007||Dec 1, 2009||Milwaukee Electric Tool Corporation||Cutting tool|
|US7661911 *||Mar 2, 2007||Feb 16, 2010||Milwaukee Electric Tool Corporation||Cutting tool|
|US7905690||Jun 17, 2008||Mar 15, 2011||Irwin Industrial Tool Company||Spade bit|
|US7922429||Nov 5, 2009||Apr 12, 2011||Irwin Industrial Tool Company||Spade bit|
|US8147174||Feb 28, 2011||Apr 3, 2012||Irwin Industrial Tool Company||Spade bit|
|US8328477||Nov 5, 2008||Dec 11, 2012||Milwaukee Electric Tool Corporation||Cutting tool|
|US8371777||Aug 27, 2010||Feb 12, 2013||Milwaukee Electric Tool Corporation||Cutting tool|
|US9339874||Jan 25, 2013||May 17, 2016||Milwaukee Electric Tool Corporation||Cutting tool|
|US9500038||Jan 31, 2014||Nov 22, 2016||Milwaukee Electric Tool Corporation||Auger bit with replaceable cutting bit|
|US20040052594 *||Apr 30, 2003||Mar 18, 2004||Iqbal Singh||Spade-type drill bit having helical configuration|
|US20050249563 *||May 2, 2005||Nov 10, 2005||Scott Gary F||Wood boring bit with increased speed, efficiency and ease of use|
|US20070277656 *||Mar 2, 2007||Dec 6, 2007||Zeiler Jeffrey M||Cutting tool|
|US20070280798 *||Mar 2, 2007||Dec 6, 2007||Zeiler Jeffrey M||Cutting tool|
|US20080279647 *||Jun 17, 2008||Nov 13, 2008||Irwin Industrial Tool Company||Spade bit|
|US20090087273 *||Nov 5, 2008||Apr 2, 2009||Douglas Allen||Cutting tool|
|US20100104387 *||Nov 5, 2009||Apr 29, 2010||Irwin Industrial Tool Company||Spade bit|
|US20100322733 *||Aug 27, 2010||Dec 23, 2010||Douglas Allen||Cutting tool|
|US20110150588 *||Feb 28, 2011||Jun 23, 2011||Irwin Industrial Tool Company||Spade bit|