Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3086414 A
Publication typeGrant
Publication date23 Apr 1963
Filing date1 Mar 1961
Priority date1 Mar 1961
Publication numberUS 3086414 A, US 3086414A, US-A-3086414, US3086414 A, US3086414A
InventorsGuy Nardi
Original AssigneeGuy Nardi
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combination wrench
US 3086414 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

April 23, 1963 G. NARD] 3,086,414

COMBINATION WRENCH Filed March 1, 1961 United States Patent Ofifice 3,086,414 Patented Apr. 23, 1963 3,086,414 COMBINATION WRENCH Guy Nardi, 496' Main St, Hanson, Mass. Filed Mar. 1, 1961, Ser. No. 92,564 2 Claims. (Cl. 81-90) The present invention relates to a combination wrench.

The invention is herein disclosed as embodied in a socket type wrench consisting of a cylindrical stem, the free end of which has formed therein an axial bore of a diameter sufficient to provide clearance for the screw to which the nut is to be threaded, and a plurality of cut away portions, together with an arrangement of internal contact surfaces and walls which will adapt the wrench for locking engagement with nuts of all standard types which may be applied to the particular screw.

It is a principal object of the present invention to provide a simple and eilective construction of a se-called socket type wrench which will readily adapt the wrench for use with all of the standard type nuts which may be interchangeably used with a screw of a given diameter and pitch including square nuts, hexagonal nuts, wing nuts, and four pronged wing-type nuts.

With the above and other objects in view as may hereinafter appear the several features of the invention will be readily understood by one skilled in the art from the following description taken in connection with the accompanying drawing in which:

FIG. 1 is a view in side elevation of a combination wrench embodying therein the several features of the invention;

FIG. 2 is a perspective view of the nut engaging end of the combination wrench;

FIG. 3 is a sectional view taken on a line 3-3- of FIG. 1;

FIG. 4 is a sectional view taken on a line 4-4 of FIG. 1;

FIG. 5 is a sectional view taken on a line 5-5 of FIG. 3, the wrench being shown in engagement with a hexagonal nut;

FIG. 6 is a sectional view taken on a line 6-6 of FIG. 5;

FIG. 7 is a sectional view of the combination wrench taken similar to that of FIG. 6, but with a square nut engaged by the wrench;

FIG. 8 is a perspective. view of a four-pronged wingtype nut;

FIG. 9 is a perspective view of a wing nut;

FIG. 10 is a sectional view of the combination wrench taken on the line 1010 of FIG. 3, and with the four pronged nut of FIG. 8 engaged by the wrench; and

FIG. 11 is a sectional view taken on a line 11 of FIG. 10.

The combination wrench shown in the drawings as embodying in a preferred form the several features of the invention comp-rises a stem 20 having an enlarged nut engaging head 22, and at the opposite end a squared portion 24 for attachment to a suitable socket wrench handle (not shown).

The tool is formed with an axial bore 26 of sufiicient diameter to provide clearance for the threaded end of the screw 27 (see FIGS. 5 and 10) to which the nut or nuts are applied, and of :suflicient depth to permit the turning down of a nut to any desired depth on the screw. The standard toilet seat hinge fixture for which the tool has been found most useful is normally provided with a screw of standard pitch which may be roughly 2%" in length. The bore 26 is preferably 2 /2 inches in length and has a diameter of approximately $1 to provide the clearance referred to.

The nut engaging head 22 of the wrench is formed with four radial slots 28 which connect with the central bore 26 and are of substantial length to receive the prongs of the four prong type nut 29 (FIGS. 10 and 11) as hereinafter more fully pointed out. The inner faces of the four projections provided by the slotting operation are slabbed off to provide the four sides 32 of a socket for a square nut 34 as shown in FIG. 7. Each side 32 is further formed with a notch 36, said notches providing with the surfaces 32 a socket well adapted to receive a hexagonal nut 38 as shown in FIGS. 5 and 6. The socket chamber provided by the surfaces 32 is further formed at its bottom end with a transverse ledge 40 which provides a seat for each of the square nut 34 and the hexagonal nut 38 above described. The ledge 40 is formed preferably by means of an initial large size bore having a diameter substantially equal to the distance between opposite sides 32 of the socket, and extending downwardly approximately the thickness of said square nut 34 to form the ledge 49. From an inspection of the drawings it will be seen that the slots 28 extend a substantial distance below the ledge 40 correspondingly increasing the length of the slots 28.

The socket provided by side walls 32 and ledge 40 is also made available by virtue of the downwardly extending slots 28 for engaging and turning up wing nuts 44, and more specifically, a four-pronged nut 29 of the general type shown in FIGS. 8, 10 and 11 in which the prongs 48 extend upwardly a substantial distance from the base portion 50 of the nut.

The wrench is engaged with -a wing nut in the following manner. The outer rim 52 of the nut is engaged against the end of the wrench. The upwardly extending base portion 53 of the nut projects into the socket provided by the four side walls 32 and may test against the ledge 40. The wing portions '56 of the nut 44 project into the lower portions of the slots 28. The nut is securely keyed to the wrench by the engagement of the wing portions 56 in said slots. In the event that a wing nut not having the outer rim 52 is used the nut will rest against the ledge 40, the wing portions 56 extending outwardly and downwardly into the lower portions of the opposed slots 28.

The wrench is engaged with the four-pronged nut 29 in a manner shown specifically in FIGS. 10 and 11. The bottom flange 58 of the nut is engaged against the end of the wrench. The upwardly extending base portion 60 of the nut projects into the socket provided by the side walls 32 and may rest against ledge 40. Each of the four prongs 48 is engaged in one of the four slots 28 projecting beyond the level of the ledge 40. With this arrangement the nut 29 is firmly keyed to the wrench by the arrangement of the prongs 48 in their respective slots 30.

It may be noted in connection with the construction of the internal surfaces of the socket wrench above described, that a bore 64 of an intermediate diameter somewhat larger than the diameter of the bore 26 is formed within the head 22 which extends downwardly through the socket to the same extent as each of the slots 30, thus providing an aperture of somewhat larger diameter than is provided by the central bore .26, but not suflicient to weaken or unduly narrow the-ledge 40. This enlarged diameter has the advantage that it is made somewhat easier to engage the wrench over the end of the screw 27 especially under conditions where the operators vision may be impeded. This somewhat larger diameter 64 also has the advantage that it will accommodate nuts which might be encountered having an unusually long tapered body portion, as for example, a castle nut. This enlarged diameter bore 64 is also of advantage to accommodate a common type of wing nut of which the upper surface of the hub is rounded or tapered. This rounded surface -wi1l fit readily into the space provided by the enlarged bore 64.

The invention having been described what is claimed is:

1. A combination wrench for accommodating interchangeably square nuts, hexagonal nuts, wing nuts and prong nuts having a common internal thread diameter, said wrench comprising a stern having a central bore of slightly larger diameter and of greater length than the diameter of the screw fitting said common internal nut thread diameter, said stem having four equally spaced radial slots extending longitudinally from the open end of the bore forming peripheral segments of said stem having parallel separating faces, said segments having flat inner surfaces and a ledge at the lower end of said surfaces to form a square nut socket into which a square nut is (fitted so that said inner surfaces engage the four sides of said square nut, the central portion of each said flat inner surface having a longitudinal groove opening at 120 to receive corners of hexagonal nuts fitted into said wrench so that two opposed said inner surfaces will engage two opposed sides of a hexagonal nut and the longitudinal grooves of the remaining opposed inner surfaces will receive the two cross-diagonally located corners of said hexagonal nut, and said slots extending longitudinally of the stern substantially beyond said ledge to receive between said parallel faces the wings of wing nuts and the prongs of four prong nuts.

2. A combination wrench according to claim 1 in which the stem is provided with a central bore of which the diameter of the cylindrical inner surface of said bore between said ledge and the ends of said radial slots is greater than the diameter of the remaining portion of said bore.

References Cited in the file of this patent UNITED STATES PATENTS 499,863 Walker et al June 20, 1893 1,397,876 Meldal Nov. 22, 1921 1,867,372 McGuckin July 12, 1932 2,445,905 Busby July 27, 1948 2,909,090 Moore Oct. 20, 1959

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US499863 *23 Jan 189320 Jun 1893 Vehicle-wrench
US1397876 *31 Aug 192022 Nov 1921Meldal EdwardNut, bolt, screw, and the like
US1867372 *9 May 193012 Jul 1932Rinck Mcilwaine IncGrease-fitting tool
US2445905 *3 Dec 194527 Jul 1948Busby Lewis LRigid jaw wrench with insertable auxiliary socket
US2909090 *4 Jun 195920 Oct 1959Moore Rollin ASocket wrench
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3769862 *17 May 19726 Nov 1973Speedriver Tool CorpWire nut tool
US4237754 *12 Jul 19799 Dec 1980Raymond TrouttUniversal spud wrench
US4249682 *7 Apr 197810 Feb 1981Sankokiki Kabushiki KaishaSpare wheel protecting system
US4334443 *7 Feb 198015 Jun 1982Pearson Bernard ETorque stabilized water meter wrench
US4357845 *3 Oct 19809 Nov 1982Cornia Jared BApparatus for manipulating wingnuts
US4512215 *2 May 198323 Apr 1985Walter KrauchickRadiator cap removing device
US4573839 *16 Aug 19824 Mar 1986Danny FinneganMounting chuck for a drill having reversible tools therein
US4749251 *11 Jul 19857 Jun 1988Hughes Aircraft CompanyConnector locking system
US5048378 *13 Nov 199017 Sep 1991Nikolas William FTool and method for faucet nut installation
US5050463 *24 May 199024 Sep 1991Stielow Erwin HRatchet wrench
US5697268 *3 Apr 199616 Dec 1997Makovsky; Keith A.Wing nut driver
US5802934 *26 Nov 19968 Sep 1998Northrop Grumman CorporationAngularly adjustable socket wrench
US5809851 *5 Jun 199722 Sep 1998Headfirst ProductsThreaded fastener driver
US5996447 *8 Dec 19977 Dec 1999Bayouth; DavidSink wrench
US6110067 *30 Mar 199929 Aug 2000Nuttall; Robert D.Method and apparatus for servicing automatic transmissions
US6176157 *17 Sep 199823 Jan 2001John D. UreHydro static wrench
US6374708 *4 May 200123 Apr 2002Cheryl KunzTool for installing and removing winterizing plugs
US6477924 *13 Nov 200112 Nov 2002Paul R. TalbotMethod for raising and lowering the feed and delivery tables of a printing press
US656467926 Oct 200120 May 2003Llamas Tony AAppliance clutch removal and installation tool
US6698317 *24 Aug 20002 Mar 2004Andrew J. MachovskyMulti-purpose plumbing tool
US672921028 Jun 20014 May 2004John L. MorrisDriver for eyebolts and hooks
US70008972 Apr 200421 Feb 2006Chick Tool Company, IncApparatus and method for operating a water valve
US70592381 Oct 200413 Jun 2006Clark Equipment CompanyMethod and apparatus for stroke position sensor for hydraulic cylinder
US7293312 *4 Oct 200513 Nov 2007Erik Vaclav ChmelarMultipurpose skateboard tool
US7293482 *15 Sep 200613 Nov 2007Wolf Edward AWing nut installation and removal tool
US729972124 Jul 200627 Nov 2007Snap-On IncororatedSocket including a reinforcing structure
US7581910 *5 Sep 20061 Sep 2009Illinois Tool Works Inc.Fastener head
US7727235 *29 Jun 20051 Jun 2010Ethicon, Inc.Medical fixation devices with improved torsional drive head
US780249918 Sep 200828 Sep 2010Stephens John FFastener driver
US80471028 May 20091 Nov 2011Chris GnatzMulti-purpose tool
US9090031 *13 Sep 201228 Jul 2015Hon Hai Precision Industry Co., Ltd.Positioning device for runner systems
US935245520 Sep 201231 May 2016Milwaukee Electric Tool CorporationFastener driver and extension
US20040253909 *29 Apr 200316 Dec 2004Hung Kai HoInstalling and a removing device for an engine clutch of a remote-controlled toy car
US20040255727 *23 Jun 200323 Dec 2004Kovach James A.Tub drain wrench
US20050081710 *1 Oct 200421 Apr 2005Clark Equipment CompanyMethod and apparatus for stroke position sensor for hydraulic cylinder
US20050218366 *2 Apr 20046 Oct 2005Chick Tool Company, Inc.Apparatus and method for operating a water valve
US20060150783 *10 Jan 200513 Jul 2006Thompson David AMultiple purpose, multiple use tool used for installing/servicing toilets and in particular two piece toilets
US20060243102 *5 Apr 20062 Nov 2006Vines Richard HPlumbing tool
US20070010820 *29 Jun 200511 Jan 2007Contiliano Joseph HMedical fixation devices with improved torsional drive head
US20070074351 *4 Oct 20055 Apr 2007Chmelar Erik VMultipurpose skateboard tool
US20080011128 *13 Jul 200617 Jan 2008Stephens John FSocket and fastener driving assembly using same
US20080034927 *4 Aug 200614 Feb 2008Emerson Electric Co.Basin wrench
US20090282954 *8 May 200919 Nov 2009Chris GnatzMulti-Purpose Tool
US20100222795 *11 May 20102 Sep 2010Ethicon, Inc.Medical fixation devices with improved torsional drive head
US20110277597 *11 May 201017 Nov 2011Mathys Marion Van RyswykPiercing cap drive socket
US20110283500 *21 May 201024 Nov 2011Velkow Murray PSystem and tool for removing battery caps
US20130014615 *20 Jan 201217 Jan 2013Peterson Joel GDual purpose water meter tool
US20130168912 *13 Sep 20124 Jul 2013Hon Hai Precision Industry Co., Ltd.Positioning device for runner systems
US20150273665 *28 Mar 20141 Oct 2015Dick L. ThomasWrench, drain retainer nut
US20150343206 *26 Feb 20153 Dec 2015Albert G. BurdulisHard tissue anchors and delivery devices
US20160108968 *28 Sep 201521 Apr 2016Showa CorporationStopper piece and bearing apparatus
DE9306334U1 *27 Apr 199315 Jul 1993Eduard Wille Gmbh & Co, 5600 Wuppertal, DeTitle not available
EP1126953A1 *7 Oct 199929 Aug 2001Federal-Mogul CorporationInstallation configuration for a spark plug technical field
EP1126953A4 *7 Oct 199912 May 2004Federal Mogul CorpInstallation configuration for a spark plug technical field
EP1403004A1 *24 Sep 200231 Mar 2004Burton KozakMulti-functional fastener driver device
U.S. Classification81/176.1, 81/124.2
International ClassificationF16B37/16, F16B37/00, B25B13/00, B25B13/06, F16B23/00, B25B13/50
Cooperative ClassificationB25B13/5091, F16B37/16, F16B23/0061, B25B13/06
European ClassificationF16B23/00E, B25B13/50C, F16B37/16, B25B13/06