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Publication numberUS2952025 A
Publication typeGrant
Publication dateSep 13, 1960
Filing dateApr 30, 1959
Priority dateApr 30, 1959
Publication numberUS 2952025 A, US 2952025A, US-A-2952025, US2952025 A, US2952025A
InventorsJohnson Floyd H
Original AssigneeJohnson Floyd H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tape measuring guide knife for cutting sheet rock, plaster board and similar materials
US 2952025 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Sept. 13, 1960 F. H. JOHNSON 2,952,025

TAPE MEASURING GUIDE KNIFE FOR CUTTING SHEET ROCK, PLASTER BOARD AND SIMILAR MATERIALS Filed April 50, 1959 IN VEN TOR.

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United' States Patent O TAPE MEASURING GUIDE KNIFE FOR CUTTING SHEET ROCK, PLASTER BOARD AND SIMILAR MATERIALS Floyd H. `Iohnson, 407 E. th St. South, Logan, Utah Filed Apr. 30, 1959, Ser. No. 810,033

2 Claims. (Cl. 7-14.1)

This invention relates to cutters for various sheet maf terials especially plaster bo-ard, rock lath, sheet rock, etc. Heretofore it has been diicult and inaccurate to use means available for measuring cuts, but with the present invention, accuracy and efliciency are predominate.

'I'he principal object of the present invention is to provide a cutter assembly in combination with a tape measure, carried by the cutter assembly and a material end riding guide connected to the outer end of the tape measure.

Another important object of the invention is to provide a sheet material cutting assembly including a handle carrying a knife, a measuring tape feedable from the handle, a guide at lthe outer end of the handle and means for clamping the tape at a iixed extended position, measuring away from the handle.

A further object of the invention is to provide an assembly of the character stated, which will be of simple construction, durable and of low cost to manufacture, and

accordingly the device can be retailed and made available to contractors, workers and others at a very low retail price.

These and various other objects and advantages of the invention will become apparent to the reader of the following description.

In the drawings:

Figure 1 is a side elevational view of the cutter assembly.

Figure 2 is a cross section taken substantially on line 2-2 of Figure l, showing the measuring tape and guide extended.

Figure 3 is a top plan view of the structure shown in Figure 2.

Referring to the drawing wherein like numerals designate like parts, it can be seen that reference character generally refers to a handle structure, while numeral 11 generally refers to a measuring tape and numeral 12 to a sheet material guide at the outer end of the tape.

The handle 10 consists of a hollow body V13 of suitable shape and adapted to be comfortably held in the hand of a workman.

The forward end of this handle slopes at at 14 and is constricted or tapered as shown in Figure 3, the same being slotted both at its nose portion 15 and under portion 16 to receive the cutting edge projecting portion 17 of a blade 18.

Inside of the hollow handle 10 is a spring wound reel 19 on which is wound a Ysteel tape 20 having measuring indicia or markings 21 thereon.

As can be seen in Figure 1, extra blades 22 may be suitably stored within the handle 13 and the handle 13 is preferably in two sections a, b held together by bolts 23, 24, the bolt 23 serving the double function of not only holding the blade 18 in place but also the sections of the handle at the nose portion thereof. y

2,952,025y Patented Sept. 13, 1960 ICC The guide 12 consists of a plate 25 which has its vertical end portions curved outwardly as at 26.

Protruding outwardly from the plate 25 is a suitable handle 27 which can be held by one end of the workman while the handle 10 is being operated across the work in cutting the same.

A detent for holding the tape 20 extended is in the form of an arcuate trigger 28 pivoted as at 29 to one side of the handle 13, the upper end of which is adapted to engage the top side of the tape 20 and hold the same against a lip 30 projecting from the handle 13 at a slot 31 formed in the handle, through which the tape 20 is payed from the reel 19. It can be seen that the lip 30 serves as a stationary door between which and the upper end of the trigger 28, the tape 12 -is held in a fixed predetermined position, While the guide 12 and 4the handle 13 are slid across a building material sheet.

It can be seen that through the medium of the handle with its cutter 1f8, the measuring tape 20 and the guide 25, an accurate measured cut can be made across a sheet of building material, preparatory to its use.

While the foregoing description sets forth the invention in specific terms, itis to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention what is claimed as new is:

1. A device for cutting sheet materials comprising a handle provided with a knife blade, a spring reel mounted on the handle, a measuring tape secured to and extending from the reel and away from the handle when pulled to an extended position, a guide structure at the outer end of the tape means for securing the blade to the handle, and detent means on the handle for engaging the tape and holding the same in a definite extended position, said means for holding the tape being in the form of a curved trigger, one end of which is adapted to be engaged by a nger of a Workman while the other end engages the tape.

2. A device for cutting sheet materials comprising a handle provided with a knife blade, a spring reel mounted on the handle, a measuring tape secured to and extending from the reel and away from the handle when pulled to an extended position, a guide structure at the outer end of the tape means for securing 4the blade to the handle, and detent means on the handle for engaging the tape and holding the same in a definite extended position, said means for holding the tape being in the form of a curved trigger, one end of which is adapted to be engaged by a linger of a workman while the other end engages the tape, said handle being provided with an outstanding lip, underlying the tape and against which the tape can be clamped by the engaging end of the trigger.

References Cited in the iile of this patent UNITED STATES PATENTS 486,156 Cero Nov. 15, 18952 1,821,718 Melcher Sept. l, 1931 1,995,887 Kimball Mar. 26, 1935 2,098,641 Cook Nov. 9, 1937 2,187,590 Lurie Jan. 16, 1940 2,194,307 Jackson Mar. 19, 1940 2,282,729 l'Knauf May 12, 1942 2,818,644 Crawford Jan. 7, 1958

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US486156 *Nov 15, 1892 Draw-gage
US1821718 *Oct 21, 1929Sep 1, 1931Melcher Walter PCutting implement
US1995887 *Jun 2, 1933Mar 26, 1935Kimball Clarence MHand tool
US2098641 *Apr 15, 1936Nov 9, 1937Bigelow Sanford Carpet Co IncStrip cutter
US2187590 *Aug 16, 1938Jan 16, 1940Lurie August JUtility knife
US2194307 *May 12, 1937Mar 19, 1940Jackson Adolph EPaperhanger's knife
US2282729 *Mar 26, 1941May 12, 1942Knauf Charles SCutting tool
US2818644 *Apr 15, 1955Jan 7, 1958Crawford Claude TWallboard measuring and cutting device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3246498 *Nov 15, 1963Apr 19, 1966Mount Ralph WBending tool
US3762046 *May 3, 1971Oct 2, 1973Kolomick PHand tool for edging gypsum board
US4255856 *Nov 13, 1979Mar 17, 1981Malcolm MackieUtility knife attachment
US4349928 *Nov 28, 1980Sep 21, 1982Mlikotin Alexander TMulti-purpose plumbing tool
US4974320 *Jun 27, 1989Dec 4, 1990Pelletier Peter DRotatable utility knife
US4993093 *Nov 16, 1989Feb 19, 1991Goldwitz Brian LMulti-purpose utility knife for precision measuring
US5025520 *Jul 18, 1989Jun 25, 1991Watkins William CCombined tool and method for using same
US5083375 *Jun 13, 1991Jan 28, 1992Helm Sr LarryDrywall cutting device
US5119521 *Jun 28, 1991Jun 9, 1992Clontz William CTape measure for hand tools
US5206965 *Nov 22, 1991May 4, 1993Mark RowleyUtility knife
US5265342 *Oct 29, 1992Nov 30, 1993Lang Jr Joseph DDrywall cutting tool
US5289637 *Mar 25, 1992Mar 1, 1994John CoffeyUtility knife
US5426802 *Sep 28, 1993Jun 27, 1995Greenwood; DelmerScoring tool
US5459647 *Oct 29, 1993Oct 17, 1995S. Betts & Sons LimitedTrimming knives
US5471750 *May 4, 1994Dec 5, 1995Richard S. DeboiDrywall cutting and scoring device
US5542184 *Sep 18, 1995Aug 6, 1996Beard; Jay T.Tape measure knife attachment for cutting drywall
US5966820 *Jul 26, 1996Oct 19, 1999Cornacchio; Michael V.Sheetrock panel cutting device
US6298562Sep 2, 1999Oct 9, 2001David M. DuquetteApparatus for the marking and cutting of construction materials
US7260898Sep 14, 2006Aug 28, 2007Rick Dale SnelsonDry wall cutting tool for measuring tape
US7287329May 21, 2003Oct 30, 2007Michael CornacchioSheetrock panel cutting device
US7458536Mar 17, 2004Dec 2, 2008The Perfect Measuring Tape Co.Measuring tape
US8001641 *Jul 14, 2009Aug 23, 2011Williams Joseph NUtility knife assembly and method
US8739412Apr 23, 2008Jun 3, 2014Constantine M. GioiaUtility knife blade
US9194683Apr 27, 2015Nov 24, 2015Edward DeutscherTape measure attachment device and method for measuring and cutting drywall
US9592599 *Jun 6, 2012Mar 14, 2017Adam PauzeDrywall tool and method of using the same
US20040231171 *May 21, 2003Nov 25, 2004Michael CornacchioSheetrock panel cutting device
US20060038050 *Mar 17, 2004Feb 23, 2006Hui Sun CMeasuring tape
US20060117574 *Nov 17, 2005Jun 8, 2006Brian MartinWallboard cutting tool
US20070068026 *Sep 14, 2006Mar 29, 2007Snelson Rick DDry wall cutting tool for measuring tape
US20080295344 *Apr 23, 2008Dec 4, 2008Gioia Constantine MUtility knife blade
US20130326821 *Jun 6, 2012Dec 12, 2013Adam PauzeDrywall tool and method of using the same
USD758160 *Dec 19, 2014Jun 7, 2016Adam PauzeDrywall tool
DE19937140A1 *Aug 6, 1999Jan 18, 2001Ralf MerzCutting knife for gypsum plaster board panels has grip containing measuring tape wound on roller body and passing to outside through channel in grip
DE19937140C2 *Aug 6, 1999Sep 27, 2001Ralf MerzSchneidmesser für Gipskartonplatten
EP0365280A1 *Oct 17, 1989Apr 25, 1990Amblelord Ltd.A knife, blade and tape measure
WO1990004501A1 *Oct 17, 1989May 3, 1990Amblelord Ltd.A knife blade and handle
WO1994009951A1 *Oct 29, 1993May 11, 1994S Betts & Sons LimitedImprovements in trimming knives
Classifications
U.S. Classification7/163, 30/142, 30/293, 30/123
International ClassificationB26B11/00
Cooperative ClassificationB26B29/06
European ClassificationB26B29/06