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Publication numberUS1452514 A
Publication typeGrant
Publication dateApr 24, 1923
Filing dateJul 6, 1922
Priority dateJul 6, 1922
Publication numberUS 1452514 A, US 1452514A, US-A-1452514, US1452514 A, US1452514A
InventorsJohn Karitzky
Original AssigneeHenry B Newhall
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bolt anchor
US 1452514 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Apr. 24, 192 3.

J. KARITZKY BOLT ANCHOR Filed y 6, 1922 IIIIIIII 1 III/IIIII{II(IIIII%IIIIIIIIIIAh v gnaw I v 8 8 'L emto'c' Patented Apr. 24, 1923.

UNITED STATES 1,452,514 PATENT": OFFICE.

JOHN KARITZKY, 0F GARWOOD, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO HENRY B. NEWHALL, OF PLAINFIELD, NEW JERSEY.

BOLT ANCHOR.

Application filed July 6, 1922. Serial No. 573,162.

To all whom it may concern:

Be it known that I, JOHN KAnrrzKY, a citizen of the United States, residing at Garwood in the county of Union and State of New Zlersey, have made certain new and useful Improvements in Bolt Anchors, of which the following is a specification, taken in connection with the accompanying drawings.

My invention relates to bolt anchors and more particularly to an expansion shield formed of sheet metal having an integral.

head and tines, which can be expanded either by a nail or screw,

My invention further relates to certain combinations, sub-combinations, articles of manufacture and details of construction all of which will be more fully hereinafter described and pointed out in the claims.

In the drawings I have shown two embodiments of my invention but it is of course to be understood that my invention is not,

to be confined tov the embodiments shown by way of illustration.

Fi 1- is a plan view of a blank of sheet meta from which my expansion shield is formed;

Fig. 2 is a side elevation and vertical sec-- tion substantially on the line 2-2 of Fig. 1; Fig. 3 is aside elevation partly in section of the finished expansion shield on the line 33 of Fig. 5-;

Fig. 4 is a section, substantially on the line 4-4 of Fig. 5, looking in the direction of the arrows,'and showing in addition the wall. or support, and the work supported by the bolt anchor;

Fig. 5 is an end elevation of the expansion shield;

Fig. 6 is a vertical section similar to Fig. 4, showing the nail driven home and the tines expanded;

Fig. 7 is a vertical section, similar to Fig. 6, but showing a screw'expanding the shield;

Fi 8 is a longitudinal section of myv expansion shield provided with interior screwthreads;

Fi 9 isa vertical section on line 9-9 of Fig. 8, looking in the direction of the arrows;

Fig. 10 is a plan view, on a smaller scale, f my expansion shield.

The blank 1, Fig. 1, is cut from a sheet of sheet metal, preferably steel, and provided with a head 2, having the opening 6. At the same time that he head 2 is formed,

form a cylindrical body member of les:

diameter than the head 2.

"NVhen the flutes are employed, the metal on the interior of the tines is forced inward,

= forming longitudinally extending ribs 8, 8.

These ribs and their complementary grooves 5, 5 are not brought up to the head 2, but start at the point 9, Fig. 4. The grooves 5, 5 are preferably formed of progressively-increased depth from the point 9 to the end of the shield. This will cause the ribs 8, 8 to taper slightly from the point 18 to the end 19 of the shield.

The expanding member, which may be a nail 10, engages with these longitudinally extending ribs 8, 8, and as the nail is driven into the expansion shield, the tines are forced apart or expanded as shown in Fig. 6, securely holding the work 11, of any form, to the face 12 of the wall or'other suitable support 1.3. By arranging the grooves and ribs as I have just described, the expansion takes place back from the surface 12 of the wall and does not tend to crack or mar the surface of said wall.

Instead of using the nail 10 with a head 14 to expand the shield, I may use a,screw 15. Such a screw may be used which will cooperate with and bear upon the longitudinally extending ribs 8, 8, as shown in Figs.

' 4,5 and 6.

-I may, however, provide the tines 4 and 5 with interrupted screw-threads 16, 16,which may be stamped into the blank, as shown. for example in Figs. 8. and 9. These figures are the same as the other figures, except for. these internal screw-threads. In this form, the nail 10 maybe used as well as the screw 15, theexpanding members being interchangeable in both forms.

By making the reenforced head2 of greater diameter than the body member, formed of the tines 4 and 5. I permit the head to engage on the outer surface of the work 11 and hold it to the wall or other suitable support 13. as shown in Figs. 4, 6 and 7'. Having thus described this invention in connection with illustrative embodiments thereof, to the details of which I do not desire to be limited, what is claimed as new and what is desired to secure by Letters Patent is set forth in the appended claims.

lVhat I claim is p 1. An expansion shield formed of sheet metal having a head formed of a plurality of thicknesses of the said sheet metal and integral tines connected to the head. said tines being fluted to form longitudinal internal ribs.

2. The combination in a bolt anchor of a sheet metal expansiol'i shield having an integral head of greater diameter and thickness than the body of the shield, integral tines connected to the head and provided with interior longitudinal ribs and an expanding member adapted to expand the tines by engaging said ribs.

' 3. An expansion shield formed of sheet metal having a head formed of a plurality of thicknesses of said sheet metal. and integral tines connected to the head, said tines provided with inclined flutes to form inclined interior ribs. said inclined interior ribs progressing in height from the head to the end of the tines to cooperate directly with, and be expanded by, an expanding member as said member progresses into the shield.

4:. The combination of an expansion shi 1d formed of sheet metal having ahead and integralvtines connected to the head, said tines provided with inclined flutes to form inclined interior ribs, said inclined interior ribs progressing in height from the head to the end of the tines to cooperate directly with, and be expanded by, an expanding member as said member progresses into the shield, and an expanding member adapted to engage with and expand the tines as it is forced into the shield.

5. The combination of an expansion shield formed of sheet metal having a head formed of a plurality of thicknesses of said sheet metal and integral tines connected to' the head. said tines provided with inclined flutes to form inclined interior ribs. said inclined interior ribs progressing in height from the head to the end of the tines to cooperate directly with. and be expanded by, an expanding member as said member progresses into the shield. and an expanding member adapted to'engage with and expand the tines as it is forced into the shield.

JOHN KARITZKY. Witnesses: DAVID TULLooH, F. W. KARITZKY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2601803 *Nov 4, 1948Jul 1, 1952Falcon Fasteners IncFastening means
US3178991 *Jan 26, 1962Apr 20, 1965South Chester CorpBlind rivet
US7752732May 10, 2007Jul 13, 2010International Patent Development Group, LlcAnchoring fastener with movable binding member and method for anchoring an object
US8011080Sep 14, 2008Sep 6, 2011International Patent Development Group, LlcHinged wall and ceiling anchor with fins and hinge
US8109705Feb 23, 2007Feb 7, 2012Illinois Tool Works Inc.Twist-lock anchoring fastener
US8197169Sep 2, 2010Jun 12, 2012Illinois Tool Works Inc.Hollow wall fastener
US8764364Jun 29, 2005Jul 1, 2014Illinois Tool Works Inc.System and methods for wall and ceiling fastening
US9004426 *Mar 14, 2013Apr 14, 2015Luis Manuel TaverasConcealable hook and method of use
US20130277518 *Mar 14, 2013Oct 24, 2013Luis Manuel TaverasConcealable Hook and Method of Use
DE2804219A1 *Feb 1, 1978Aug 2, 1979Bauer Metallwarenfab HelmuthAus einem einstueckigen formling bestehender zylindrischer spreizduebel
DE3706616A1 *Feb 28, 1987Sep 8, 1988Zondler SilviaExpansion dowel
DE3820760A1 *Jun 18, 1988Dec 21, 1989Fischer Artur Werke GmbhPlastic expansion dowel
DE10027440A1 *Jun 2, 2000Dec 6, 2001Fischer Artur Werke GmbhSpreizanker zur Befestigung an einer Baustoffplatte
EP1860332A1 *May 22, 2006Nov 28, 2007Fu-Chuan HsiuMethod of forming an expansion mounting sleeve and the product thereof
Classifications
U.S. Classification411/61, 248/74.1, 248/231.91
International ClassificationF16B13/00, F16B13/12
Cooperative ClassificationF16B13/122
European ClassificationF16B13/12A