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 numberUS2764814 A
Publication typeGrant
Publication dateOct 2, 1956
Filing dateJan 5, 1954
Priority dateJan 5, 1954
Publication numberUS 2764814 A, US 2764814A, US-A-2764814, US2764814 A, US2764814A
InventorsJecker Gustav
Original AssigneeHerman Ament
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ripping tools for tailoring and sewing
US 2764814 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)



h l mb:

,A HHH Ill United States Patent RIPPING TOOLS FOR TAILORING AND SEWING Gustav Jecker, Aachen (North Rhine), Westphalia, Germany, assignor to Herman Ament, New York, N. Y.

Application January 5, 1954, Serial No. 402,214

1 Claim. (Cl. 30294) The invention relates to a ripping tool adapted for all ripping work, such as the ripping of seams, making of slots for button holes, etc.

The tool according to the invention consists of a metal shank provided at one end with two prongs forming a fork between which at the bottom of the fork is formed a relatively broad, preferably curved blade by pressing recesses into the shank on opposite sides thereof, said blade extending towards but ending a short distance before the ends of the prongs, one of which is pointed and the other of which has a rounded-off enlargement, e. g. in form of a ball, adjacent to and somewhat overhanging the neighbouring end of the blade. The pointed prong is preferably longer than the one with the enlarged end.

The accompanying drawing shows, by way of example, an embodiment of a ripping tool according to the invention, Fig. 1 being an enlarged side view and Fig. 2 an enlarged front elevational view of the tool.

The tool may be made in any suitable size according to the purpose for which it is designed to be used. The shank a of preferably round or oval section is shaped at its working end in such a way that it forms a fork consisting of two prongs b and c. Two recesses have been pressed at opposite sides of the shank in order to form a thin web d the edge of which is ground to form a relatively broad preferably curved blade f. The prong b is terminated by a pointed end g for piercing purposes and is longer than the other prong c. The end of the short prong c bears a ball-shaped enlargement h overhanging the neighbouring end of the blade and protecting said blade.

In handling the tool piercing of a fabric at a wrong spot with the pointed prong does no harm, since the cutting does not commence immediately with the piercing because piercing prong in the seam, the tool being then withdrawn and the short prong with the thickened end introduced into the slot cut, whereupon the ripping is done by advancing the tool along the seam with the short prong running between the cloth and the lining. The enlargement of the end of the short prong prevents inadvertent injuring of the cloth and lining and at the same time facilitates guiding the tool in such a manner that the pointed end of the long prong, which moves on the outside, does not touch the cloth either.

By properly grinding the edge of the thin web at a very sharp and durable blade f is obtained. The broad curved blade allows of easily handling and guiding the tool in operation. Due to the blade ending before the prong ends and the enlargement at the end of the short prong injuries to the fingers of the operator are safely avoided.

Having now described my invention, what I claim is:

A ripping tool for tailoring and sewing, comprising a substantially flat metal shank having at its ends two prongs forming a fork, one of the prongs being elongated and the other prong being relatively short, the elongated prong having a pointed end, and the other prong having a round enlargement on its end overhanging the adjacent portion thereof, depressions on opposite sides of the shank between the prongs leaving a thin counter-sunk web, the portion of the edge of the web at the bottom of the fork being inwardly curved with one end thereof arranged adjacent the inner side of said round enlargement and with its other end extended in a direct and converging line to a point in proximity to the pointed end of the elongated prong, the edge of said web being sharpened substantially throughout its length to form a cutting blade.

References Cited in the file of this patent UNITED STATES PATENTS 1,498,753 Rendlich June 24, 1924 1,546,975 Feller July 21, 1925 2,610,399 Adams et a1 Sept. 16, 1952 FOREIGN PATENTS 2,247 Great Britain Feb. 8, 1889

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1498753 *Mar 29, 1924Jun 24, 1924Rendlich Daniel ICarcass-opening device
US1546975 *Oct 21, 1924Jul 21, 1925Feller CharlesFish-splitting knife
US2610399 *Feb 4, 1950Sep 16, 1952Pelouze Mfg CompanyRipper for seams or the like
GB188902247A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3100935 *Jun 27, 1962Aug 20, 1963Needle Industries LtdTool for the ripping of seams and like purposes
US3716057 *Apr 13, 1970Feb 13, 1973Rubin FGuarded dorsal osteotome with stabilizer
US3918157 *Jul 2, 1974Nov 11, 1975Allied ChemSafety knife
US3972117 *Mar 13, 1975Aug 3, 1976Fogg Walter KDisposable combination stitch picker and seam ripper
US3975822 *May 28, 1975Aug 24, 1976Mabus Richard CNeedlepoint and crewel-embroidery stitch remover
US4062117 *Sep 27, 1976Dec 13, 1977Coleman John DRescue tool means
US4432138 *Jun 4, 1982Feb 21, 1984Piccolo Jr Albert VCutting blade
US5086561 *Jul 17, 1991Feb 11, 1992Nathan Daniel MSafety knife and protection garment for processing operations
US5346503 *Jan 6, 1993Sep 13, 1994Chow James CCutting instruments for endoscopic surgery
US5412871 *Aug 17, 1994May 9, 1995Reyburn; Thomas P.Safety stock carton knife
US5539983 *Feb 23, 1995Jul 30, 1996Reyburn; Thomas P.Safety stock carton knife
US5827311 *May 8, 1997Oct 27, 1998Biomet IncCarpal tunnel tome
US5896667 *Jun 18, 1997Apr 27, 1999Hawkins; Jennifer B.Plastic wrap piercing-cutting device
US5908433 *May 10, 1996Jun 1, 1999Stryker CorporationCarpal tunnel knife
US5957944 *Mar 2, 1998Sep 28, 1999Biomet, Inc.Method for treatment of trigger finger
US6182364Sep 1, 1998Feb 6, 2001Thomas P. ReyburnSafety stock carton knife tip assembly and method of making
US6240645 *May 14, 1998Jun 5, 2001Clover Mfg. Co., Ltd.Sewing cutter
US7674266 *Dec 23, 2003Mar 9, 2010The Cleveland Clinic FoundationApparatus for cutting bone
US7674267Nov 13, 2006Mar 9, 2010The Cleveland Clinic FoundationApparatus for cutting bone
US8105341 *May 11, 2007Jan 31, 2012Michelle SheltonSuture removal device
US8608763 *Oct 1, 2010Dec 17, 2013SonicSurg Innovations, LLCMethod for minimally invasive tendon sheath release
US8608765 *Oct 14, 2011Dec 17, 2013SonicSurg Innovations, LLCDevice for minimally invasive tendon sheath release
US8771303 *Nov 26, 2013Jul 8, 2014SonicSurg Innovations, LLCMethod for minimally invasive tendon sheath release using device with hemi-cannula
US8771304 *Nov 26, 2013Jul 8, 2014SonicSurg Innovations, LLCDevice for minimally invasive tendon sheath release having static blade
US8875406 *Feb 5, 2008Nov 4, 2014Glen Sheldon Gerald CollardApparatus and method for cutting tape on a hockey stick
US20100234865 *Sep 10, 2009Sep 16, 2010Lafauci Michaeldevice for performing surgery
US20100275449 *Feb 5, 2008Nov 4, 2010Glen Sheldon Gerald CollardApparatus and method for cutting tape on a hockey stick blade
US20110106123 *Nov 9, 2010May 5, 2011Lafauci MichaelTwo-part surgical device
US20140031848 *Jul 26, 2012Jan 30, 2014A.M. Surgical, Inc.Endoscopic surgical blade and method of use thereof
DE102009030254A1 *Jun 23, 2009Dec 30, 2010Geuder AgSurgical blade for utilization in hand surgery, particularly for carpal roof cleavage during carpal tunnel syndrome, has hand grip and shaft with cutter, where shaft is extended from hand grip
U.S. Classification30/294, 30/317, 30/DIG.800
International ClassificationD05B85/00, A41H31/00, D05B89/00
Cooperative ClassificationD05B89/00, Y10S30/08, A41H31/005
European ClassificationD05B89/00, A41H31/00B