|Número de publicación||US2563227 A|
|Tipo de publicación||Concesión|
|Fecha de publicación||7 Ago 1951|
|Fecha de presentación||21 Oct 1949|
|Fecha de prioridad||21 Oct 1949|
|Número de publicación||US 2563227 A, US 2563227A, US-A-2563227, US2563227 A, US2563227A|
|Inventores||Emery Charles H|
|Cesionario original||Emery Charles H|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (4), Citada por (6), Clasificaciones (4)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
Aug. 7, 1951 c. H. EMERY v FASTENER EXTRACTOR 2 Sheets-Sheet 1 Filed Oct. 21, 1949 INVENTOR ATTORNEYS Aug, 1951 c. H. EMERY FASTENER EXTRACTOR 2 Sheets-Sheet 2 Filed Oct. 21, 1949 INVENTOR ATTORNEYS Patented Aug. 7, 1951 FASTENER. EXTRACTOR Charles H. Emery, Milwaukee, Application October 21, 1949, Serial No. 122,67 9
The invention relates to fastener extractors and more particularly to staple and thumb tack pullers.
One object of the invention i to provide a puller of the type above described in which a wedge blade is associated with a top binder means which permit rocking of the staple, so that it may be readily pulled out, the blade being so constructed and arranged that it will handle several different size of staples.
A further object of the invention is to provide a staple puller made from a single piece of metal formed to provide a wedge blade and a pair of top binder jaws cooperating with said blade to wedge portions of the staple between them and the blade, the base of the jaws providing fulcrum points to assist in prying the staple loose from its anchorage.
The invention further consists in the several features hereinafter set forth and more particularly defined by claim at the conclusion hereof.
In the drawings: v
Fig. 1 is a front elevation view of a puller device embodying the invention showing its wedge blade inserted under the staple, parts being broken away;
Fig. 2 is a side elevation view showing the puller about to have its wedge unseated under the top of the staple, part bein broken away;
Fig. 3 is a side elevation view of the puller as shown in Fig. 1, parts being broken away;
Fig. 4 is an end elevation view looking in the direction of the arrows shown in Fig. 3 showing one leg of the staple removed, parts being broken away;
Fig. 5 is a view similar to Fig. 4 showing the other leg of the staple removed, parts being broken away;
Fig. 6 is a view similar to Fig. 1 showing the application of the puller to a thumb tack;
Fig. '7 is a side elevation view of the device shown in Fig. 6;
Fig. 8 is a view similar to Fig. 3 showing the start of removing a thumb tack;
Fig. 9 shows the device with the thumb tack removed.
Referring to the drawings, the puller embodying the invention comprises a bar of fiat steel or other suitable metal formed to provide a handle l0 whose back end ll may be turned over and a front end portion bevelled to provide a wedge blade l2 which is bent up at an acute angle from the plane of the handle and further formed to provide a pair of top binder jaws l3, each jaw being bent up at (4 at an angle to theiiandle and to the blade l2 and then extending forwardly at l5 substantially parallel to the plane of the blade l2, the said jaws also being bent inwardly or converging inwardly toward each other to provide a top binder surface above the blade [2. It is to be noted that the jaws l 3 are separated from the blade portion l2 by sawing or slitting the front end of the bar stock before bending the blade and the jaws to the desired shape.
To accommodate different sizes of staples the blade I2 is slotted at Hi to one side of its center whereby three different sizes of staples can be readily handled, two sizes being taken care of by the unequal spacing of the slot l6 relative to the width of the blade and the other size by the whole width of the blade; however, staples whose leg spread is considerably wider than the width of the blade may be handled by this too] since it is capable of pulling out one leg of the staple at a time.
In use the blade I2 is positioned as shown in Fig. 2, and then worked in under the bridge or top I! of the staple as shown in Figs. 1 and 2 with the bridge lyin under the binder jaws l3, and then the handle is depressed to lift the staple out of its anchorage, but if it will not come readily, then it is canted first to one side and then the other as shown in Figs. 4 and 5 to withdraw the legs from the material into which they have been driven. In canting the puller the corner l8 between the bridge l1 and the staple leg l9 being withdrawn wedges or is clinched between the blade l2 and the lower inner edge of one of the binder jaws [3 as shown in Fig. 4 while the part 20 at the edge of the base of the other jaw acts as a fulcruming point about which to swing or cant the tool to remove the leg l9 and that this same action takes place in removin the other leg 2| of the staple as shown in Fig. 5, the wedging or binding of the corner 22 between the blade and the other jaw then taking place while the tool fulcrums about the part 23 at the base of the opposite jaw.
The tool may also be used for the placement and removal of thumb tacks. In removing a thumb tack 24 as shown in Figs. 6 to 9 its action is generally similar to the usual tack puller, the wedge blade I2 being inserted under the head of the tack 24, so that the slot l6 alines with the shank of the tack. However, the top binder jaws I3 projecting a they do over the head of the tack act to retain the tack in the pulling end of the tool until it is extracted, and for placement of thumb tacks these binder jaws form a back stop for the head of the tack, so that it may be pressed down into the material to be fastened to the desired anchoring surface.
I desire it to be understood that this invention is not to be limited to any particular form or arrangement of parts except in so far as such limitations are included in the claim.
What I claim as my invention is:
A tool of the character described, comprisinga wedge blade having a slot offset to one side of the center of said blade to accommodate staples of different sizes, and binder means above the blade between which and the blade an exposed portion of the staple i wedged during the removal of the staple.
CHARLES H. EMERY.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US1160568 *||4 Nov 1911||16 Nov 1915||American Sales Book Co Ltd||Apparatus for removing staples.|
|US1435885 *||28 Abr 1921||14 Nov 1922||Ernst Wisroth||Tool|
|US1973846 *||21 Ago 1933||18 Sep 1934||John B Crofoot||Staple puller|
|US2202984 *||17 Mar 1939||4 Jun 1940||Abraham Obstfeld||Staple remover|
|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US4028758 *||22 Sep 1975||14 Jun 1977||Connor John J O||Combination utility knife and staple remover|
|US4219187 *||12 Feb 1979||26 Ago 1980||Brumfield Stanford O||Staple remover|
|US4373246 *||2 Jun 1980||15 Feb 1983||Vanhoutte Arthur C||Method of opening a can with fulcrum-type opener tabs|
|US4930749 *||15 May 1989||5 Jun 1990||Lawrence Robert S||Staple remover with adjustable leverage|
|US5088692 *||24 May 1991||18 Feb 1992||Weiler Raywood C||Heavy duty staple remover|
|US5090663 *||13 Dic 1990||25 Feb 1992||The Troxel Company||Staple remover|
|Clasificación de EE.UU.||254/28|