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Publication numberUS2277758 A
Publication typeGrant
Publication dateMar 31, 1942
Filing dateAug 28, 1941
Priority dateAug 28, 1941
Publication numberUS 2277758 A, US 2277758A, US-A-2277758, US2277758 A, US2277758A
InventorsFrank J Hawkins
Original AssigneeFrank J Hawkins
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Shield
US 2277758 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 31, 1942. J. HAWKINS- A2,277,758

, ,SHIELD Filed Aug. 28, 1941 wf; l

4 @D J 53M rm? @mais Patented Mar. 31, 1942 UNiTED STATES PATENTV OFFICE SHIELD Frank J. Hawkins, Hyattsville, Md.

Application August 28, 1941, Serial No. 408,685

1 Claim.

The invention relates to shield strips of a character to be applied over an electric cable or conduit to make it impossible for a subsequently driven nail to damage wiring.

It is an object of the invention to provide a strip of readily separable units from which as many units as necessary may be removed for ap plication to a specic location.

It is a further object of the invention to provide a strip of the character described in which each unit shall have provision for fastening means.

It is a still further object of the invention to provide a shield of this character wherein at least certain of the units making up the strip are provided with means formed integral therewith by which the strip may be secured either temporarily, until nails or screws may be driven, or permanently without use of added nails or screws.

Further Objects of the invention will appear from the following description when read in connection with the accompanying drawing showing illustrative embodiments of the invention, and wherein:

Figure 1 is a plan view;

Fig. 2 is an end view;

Fig. 3 is a transverse section on line 3 3 of Figure 2; and

Figs. 4 and 5 are detail plan and edge views respectively showing a modified form of the attaching means.

As shown the device comprises a strip of material Il] formed, for instance, of soft steel and provided with lines II of weakness, shown as caused by depressing the metal so as to make the strip readily frangible upon these lines. The depth of the depressions provided to produce the lines of Weakness may depend to some extent upon the frangibility of the metal.

To receive fastening elements as nails or screws, perforations I2 are shown which are arranged upon the strip preferably in staggered relation, as illustrated, in order to better support the strips adjacent the ends of the sections than would be the case if they were placed centrally thereof. It will be understood that more perforations than the two shown in each section may be provided or any other arrangement of perforations preferred may be used.

In addition to or in lieu of fastening elements inserted through the perforations I2, the material may be secured in place by spurs I3 struck out from the material of the strip desirably at an edge thereof, as shown.

With the spurs i3 present and also the perforations I2, the strip may be placed over the wiring to be protected and struck with a hammer, where it will stay either temporarily while other fastening elements are provided or if itis desired to make the spurs of sufficient length, they may be depended upon for nally securing of the material in place.

In Figures 4 and 5 there is shown a spur I4 provided by striking the material from the strip resulting in a depression I5 in the edge of the strip and when so formed a nail or screw may be driven with its shank in the depression when its head will overlie the face of the shield sufficiently to provide a permanent fastening. It will be understood that the spurs I4 may be formed interiorly of the body of the strip but the edge location thereof is preferred since the interior formation would give an opportunity for a later driven nail to pass through, with possible damage to the electric wiring.

The width of the strip as a whole and the length of the individual sections may be anything desirable for the purpose. Desirably the length of the sections may be twice the width of the strip whereby when a certain number of sections do not cover a space to be protected, and one more will be too long, a single section may be broken olf and placed transversely so that any given space may be protected to within less than the width of the strip as a whole.

It will be seen that in Figure 1 the lower section I6 of the strip is formed of a length substantially twice the Width of the strip. The two sections I1 are each one-half of section I6, and the three sections I8 are each one-third of the section I6. It is to be understood that each length of the strip may be made up of sections I 6 alone. If desired the strip may be made as above indicated all of length I6, but the provision of the length of material as shown in Figure 1 at I1 and I8 gives an added ability to the Worker to ll in any given space very nearly completely.

Those skilled in the art will understand that use of the device of the invention is not limited to directly covering a conduit or string of cable, but its normal use is upon a beam, joist or stud over the location of Wiring passed through a hole spaced from such surface less than the length of a nail.

Minor changes may be made in the physical embodiment of the invention within the scope of the appended claim, without departing from the spirit of the invention.

I claim:

A stock shield strip from which varying lengths prising aliquot parts of said units whereby a 10 length closely corresponding to a needed length may be readily broken olf from the stock strip, said unit and certain of said aliquot part lengths forming adjacent the edges thereof with means for reception of securing means, whereby said securing means will not touch the wiring when driven to attach the shield to the structure to be protected.

FRANK J. HAW'KINS.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2693638 *May 14, 1953Nov 9, 1954Eastern Tool & Mfg CoMethod of making keys for frangible strip
US2955688 *Jun 4, 1958Oct 11, 1960Aetna Steel Products CorpLocking device
US2963869 *Aug 12, 1955Dec 13, 1960Cobi Walter HBall-pile tubes
US2971256 *Oct 13, 1958Feb 14, 1961Henri LeflonFasteners for conveyor belts and the like
US3211824 *Jan 30, 1964Oct 12, 1965Internat Oil Burner CompanyStud insert for shielding electrical conductors, and the like
US3213629 *Mar 20, 1963Oct 26, 1965Socony Mobil Oil Co IncApparatus and method for installation of a pile-jacket assembly in a marine bottom
US3240869 *Sep 1, 1964Mar 15, 1966Automated Building ComponentsCable protector plate
US3590759 *Nov 19, 1969Jul 6, 1971Hendrie George S JrReinforcing strip for plastic articles and method and apparatus for making same
US4094108 *Jul 1, 1977Jun 13, 1978Cyclops CorporationControlled destructive panel assembly
US4097162 *Jul 26, 1976Jun 27, 1978Sir Walter LindalMortise and tenon joint
US4128979 *May 26, 1977Dec 12, 1978Price Reginald SSuspension assembly for partition panel
US4251168 *Sep 11, 1978Feb 17, 1981Groetschel Karl MFastening means for roof mats for mine workings
US4644723 *Mar 5, 1986Feb 24, 1987Weber William RWallboard clip
US4837991 *Oct 26, 1987Jun 13, 1989Shaw Jack RChannel means for use in conjunction with building footing
US5163254 *Dec 19, 1990Nov 17, 1992Zastrow Thomas SStud shield
US5531052 *Dec 28, 1993Jul 2, 1996Agar; Robert S.Unitary suspension clip for supporting partition walls
US5632128 *Jun 7, 1995May 27, 1997Gravity Lock Systems, Inc.Unitary suspension clip for supporting demountable partition walls
US7165363 *Apr 23, 2003Jan 23, 2007Building Materials Investment Corp.Manually separable ridge vent
US7762032 *Jul 20, 2007Jul 27, 2010One Smart Chick, LlcSystems and methods for providing a utility line protection plate
US8245478Mar 11, 2011Aug 21, 2012Všlinge Innovation ABSet of floorboards with sealing arrangement
US8341914Oct 22, 2010Jan 1, 2013Valinge Innovation AbMechanical locking of floor panels with a flexible bristle tongue
US8341915 *Oct 21, 2005Jan 1, 2013Valinge Innovation AbMechanical locking of floor panels with a flexible tongue
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US8387327Oct 5, 2011Mar 5, 2013Valinge Innovation AbMechanical locking system for floor panels
US8448402Dec 16, 2011May 28, 2013Všlinge Innovation ABMechanical locking of building panels
US8499521Nov 7, 2008Aug 6, 2013Valinge Innovation AbMechanical locking of floor panels with vertical snap folding and an installation method to connect such panels
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US8572922Jul 2, 2012Nov 5, 2013Valinge Flooring Technology AbMechanical locking of floor panels with a glued tongue
US8596013Apr 3, 2013Dec 3, 2013Valinge Innovation AbBuilding panel with a mechanical locking system
US8627862Jan 30, 2009Jan 14, 2014Valinge Innovation AbMechanical locking of floor panels, methods to install and uninstall panels, a method and an equipment to produce the locking system, a method to connect a displaceable tongue to a panel and a tongue blank
US8633404 *Feb 26, 2010Jan 21, 2014Hubbell IncorporatedGangable nail plate
US8640424Aug 8, 2013Feb 4, 2014Valinge Innovation AbMechanical locking system for floor panels
US8650826Jul 11, 2012Feb 18, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8677714Feb 4, 2013Mar 25, 2014Valinge Innovation AbMechanical locking system for panels and method of installing same
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US8713886Nov 2, 2009May 6, 2014Valinge Innovation AbMechanical lockings of floor panels and a tongue blank
US8733065Mar 21, 2012May 27, 2014Valinge Innovation AbMechanical locking system for floor panels
US8763340Aug 14, 2012Jul 1, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8763341Nov 14, 2013Jul 1, 2014Valinge Innovation AbMechanical locking of floor panels with vertical folding
US8769905Aug 14, 2012Jul 8, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8776473Feb 3, 2011Jul 15, 2014Valinge Innovation AbMechanical locking system for floor panels
US20080134607 *Oct 21, 2005Jun 12, 2008Valinge Innovation AbMechanical Locking of Floor Panels With a Flexible Tongue
US20110209912 *Feb 26, 2010Sep 1, 2011Hubbell IncorporatedGangable nail plate
Classifications
U.S. Classification52/98, 411/921, 52/514, 52/220.1, 411/457, 174/135, 29/417, 29/413
International ClassificationH02G9/02
Cooperative ClassificationY10S411/921, H02G9/025
European ClassificationH02G9/02B