New! View global litigation for patent families

US3881377A - Ratcheting wrench for octagonal members - Google Patents

Ratcheting wrench for octagonal members Download PDF

Info

Publication number
US3881377A
US3881377A US31532172A US3881377A US 3881377 A US3881377 A US 3881377A US 31532172 A US31532172 A US 31532172A US 3881377 A US3881377 A US 3881377A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
working
surface
jaw
member
wrench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
James P Evans
Calvin G Turner
Original Assignee
James P Evans
Calvin G Turner
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/46Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/02Spanners; Wrenches with rigid jaws
    • B25B13/08Spanners; Wrenches with rigid jaws of open jaw type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S81/00Tools
    • Y10S81/08Crowfoot-type wrenches

Abstract

A ratcheting wrench for octagonal or hexagonal members having a body, a handle means attached to the body, a torqueing jaw and a backup jaw extending from the body to receive the octagonal or hexagonal member therebetween, the backup jaw has a planar working surface and the torqueing jaw having a working surface parallel to and spaced from the working surface of the backup jaw, the length of the torqueing jaw working surface being less than one-half the length along a side of the octagonal member, the torqueing jaw terminating at the outer end opposite the handle in an inclined slipping surface, the ratcheting wrench serving to engage the octagonal or hexagonal member in successive rotary motion without removing contact from the octagonal member.

Description

States Patent 1191 Evans et al.

[ May 6, 1975 1 RATCHETING WRENCH FOR OCTAGONAL MEMBERS [22] Filed: Dec. 15, 1972 [21] Appl. No.: 315,321

[52] U.S. Cl. .1 81/186; 81/119; 81/DIG. 8 [51] Int. Cl B25b 13/02 [58] Field of Search 81/119, 125.1, 186, DiG. 8

[56] References Cited UNITED STATES PATENTS 2,329,061 9/1943 Kopczynski 81/119 UX 2,600,617 6/1952 Coates 81/177 G X 2,652,735 9/1953 Wilder 81/119 2,909,954 10/1959 Rhoads 81/180 D X 3,242,775 3/1966 l-linkle 3,745,859 7/1973 Evans et al. 81/119 Rl7,417 8/1929 Gillett 81/186 X FOREIGN PATENTS OR APPLICATIONS 1,957,352 12/1968 Germany 81/186 X Primary ExaminerAl Lawrence Smith Assistant Examiner-James G. Smith [57] ABSTRACT A ratcheting wrench for octagonal or hexagonal members having a body, a handle means attached to the body, a torqueing jaw and a backup jaw extending from the body to receive the octagonal or hexagonal member therebetween, the backup jaw has a planar working surface and the torqueing jaw having a working surface parallel to and spaced from the working surface of the backup jaw, the length of the torqueing jaw working surface being less than one-half the length along a side of the octagonal member, the torqueing jaw terminating at the outer end opposite the handle in an inclined slipping surface, the ratcheting wrench serving to engage the octagonal or hexagonal member in successive rotary motion without removing contact from the octagonal member.

1 Claim, 7 Drawing Figures PATENTEDHAY 6I975 3,881,377

swam 16F 2 RATCI-IETING WRENCH FOR OCTAGONAL MEMBERS BACKGROUND. SUMMARY AND OBJECTS OF THE INVENTION Others have provided ratcheting wrenches for rotating hexagonal members in an arrangement wherein the ratcheting wrench has no moving parts and does not have to be removed from contact with the member to be ratcheted. For information relating to the provision of ratcheting wrenches for hexagonal members reference may be had to the following US. Pat. Nos. 3.620.107. entitled Speed Wrench." James P. Evans. inventor. issued Nov. 16. 1971: 2.652.735. entitled Open End Wrench". G. W. Wilder. inventor. issued Sept. 22. 1953.

None of the references above mentioned. nor any other known teaching. has suggested a wrench without moving parts particularly adapted for ratcheting an octagonal member. While most nuts. bolts. and other devices utilized in industry are commonly either four sided. six sided. or twelve sided. some octagonal devices are in use. For instance. in the plumbing industry fittings frequently are octagonal in external configurations. Unions and other coupling devices are examples of octagonal shaped apparatus. To this time most artisans working on octagonal devices have utilized adjustable end wrenches or adjustable pipe wrenches. Both of these types of wrenches require the wrench to be removed from the member and repositioned to newly engage the member at each stroke of the rotary motion in threading or unthreading one member from another. The present invention is directed towards the provision of a ratcheting wrench for octagonal members. More particularly. the invention is directed towards the provision of a ratcheting octagonal wrench free of moving parts which can be utilized for rotating an octagonal member without removing contact of the wrench from the member to be rotated.

Another object of this invention is to provide a wrench for ratcheting an octagonal member including improved means for engagement of the wrench with the octagonal member.

Another object of this invention is to provide a ratcheting wrench for an octagonal member including means for increasing the torqueing grip applied by the wrench to the octagonal member.

Another object of this invention is to provide a ratcheting wrench for an octagonal member including means of preventing the wrench from slipping out of contact with the octagonal member while it is being rotated.

Another object of this invention is to provide a ratcheting wrench for octagonal members in which the wrench may be adjusted to accept a variation in size of the octagonal members.

Another object of this invention is to provide a ratcheting wrench having no moving parts and which can be used to ratchet either an octagonal member or a hexagonal member.

These general objects. as well as more specific objects. will be fulfilled in the invention to now be set forth in the following description and claims. taken in conjunction with the attached drawings.

DESCRIPTION OF THE VIEWS FIG. I is an external view ofa wrench embodying the principles of this invention. The wrench is shown engaging an octagonal member. the octagonal member being shown in dotted outline.

FIG. 2 is an alternate view of the invention showing the arrangement wherein a detachable handle may be utilized. wherein inserts of hard material may be utilized in the formation of the wrench, and wherein the wrench is configured such that it will not accidentally slip from the member being rotated.

FIG. 3 is an alternate arrangement of the invention including means wherein the wrench is adjustable to receive different size octagonal members.

FIG. 4 is a view of an octagonal member showing indicia of the dimensions thereof.

FIG. 5 is an additional alternate arrangement of the invention depicting a ratcheting wrench having no moving parts adaptable to rotate both an octagonal and a hexagonal member.

FIG. 6 shows the wrench of FIG. 5 receiving an octagonal member for ratcheting rotation thereof.

FIG. 7 shows the embodiment of FIG. 5 receiving a hexagonal member for the ratcheting rotation thereof.

DETAILED DESCRIPTION Referring now to the drawings and first to FIG. 1. the wrench of this invention includes a body 12 having a handle 14 extending therefrom. Integrally formed with and extending from body I2 in the direction opposite the handle 14 is a backup jaw 16 and a torqueing jaw 18. The backup and torqueing jaws are spaced from each other to receive an octagonal member 20 therebetween. the member being illustrated in dotted outline. Octagonal member 20 may be a nut. bolt. portion of a pipe fitting union. or any other device which is to be rotated.

FIG. 4 shows an octagonal member and illustrates representative dimensions. The letter A indicates the width between opposed paralleled faces of the member; the letter B indicates the width across the opposing corners of the member and the letter D represents the length along one side of the member.

Referring again to FIG. 1, the backup jaw 16 has a planar working surface 22 which engages member 20. The torqueing jaw 18 has a working surface 24 which is parallel to the backup jaw working surface 22 and spaced from working surface 22 a distance just slightly greater than A so as to receive the octagonal member 22 between the two working surfaces. The length E of torqueing jaw working surface 24 is less than A: D.

Between the backup jaw working surface 22 and the torqueing jaw working surface 24 the body has a member engaging surface formed of three body working surfaces. The first body working surface 26 has a length slightly greater than D and intersects the backup jaw working surface 22 at an angle of 45. The second body working surface 28 has a length slightly greater than D and intersects the first body working surface 26 at an angle of 45. The plane of the second body working surface 28 is thereby perpendicular to the plane of the backup jaw working surface 22 and the plane of the torqueing jaw working surface 24. The third body working surface 30 has a length slightly greater than D and intersects the second body working surface 28 at an angle of 45 and. in addition. intersects the torqueing jaw working surface 24 at an angle of 45.

The torqueing jaw terminates at the outer end with an inclined slipping surface 32. the plane of the slipping surface intersecting the plane of the backup jaw working surface 22 at an acute angle in the direction toward the handle 14. The octagonal member is rotated by moving handle 14 in the direction indicated by the arrow 34. When the handle is moved in the direction opposite the arrow 34 the wrench slips upon member 20. To help maintain the wrench in contact with the member 20, a guide lip indicated in dotted outline. and identified by the numeral 36, may be utilized. The guide lip 36 is integrally formed as a part of torqueing jaw 18 and has an arcuate surface 38 facing backup jaw working surface 22. The distance between the arcuate surface 38 and backup jaw working surface 22 measured perpendicular to the working surface 22, as indicated by the arrow C, must be greater than the width B of member 20 so as to permit the wrench to rotate around the member when moved in the direction opposite the arrow 34.

FIG. 2 shows an alternate embodiment of the invention. In FIG. 2 shows an alternate embodiment of the invention. In FIG. 2 the handle means 14A includes an opening 148 which is adaptable to receive a removable extension handle. The extension handle may include torque indicating means. A comparison of the arrangement of FIG. 2 with FIG. 1 indicates that wrenches having various handle means may be designed employing the invention.

An additional alternate arrangement of FIG. 2 includes the provision of wear resistant inserts 40A through 40D which engage the hexagonal member 20. The inserts may be of material such as tungsten carbide. The wear resistant elements 40A to 40D may be made to be flush with the working surfaces as in the arrangement of FIG. I, or as shown in FIG. 2, they may protrude outwardly so the working surfaces are formed by edges 24A. A. 28A. and 26A to engage the member 20. The edges may be blunt. or very sharp. or any configuration inbetween.

Another alternate arrangement of FIG. 2 includes the provision wherein the backup jaw 22 terminates at the outer end thereof opposite the handle portion MA with a retaining portion 42; and the torqueing jaw 18 terminates at the outer end thereof opposite the handle portion with a retaining portion 44. The distance E between the retaining portions 42 and 44 is less than the width A of member 20. In this arrangement the wrench must slip onto the member 20 in the direction axially of the member. Once in position the wrench can be utilized to ratchet the member 20. The retaining portions 42 and 44 prevent the wrench from inadvertently slipping off the member.

FIG. 3 shows an additional alternate embodiment of the invention wherein the backup jaw 16 is movable relative to torqueing jaw 18. This adjustable feature permits accepting octagonal members 20 of varying sizes. It is understood that since varying the distance between backup jaw 16 and torqueing jaw 18 will change the length of second body working surface 28. the adjustability of FIG. 3 permits only a limited range of various size octagonal members which may be ratcheted by the wrench. The arrangement of FIG. 3 does permit. however. adjustments for variations in sizes of hexagonal members which occasionally occurs. particularly in plumbing fittings which are heavily galvanized.

FIG. 3 shows the arrangement wherein the backup jaw working surface 22 includes an undercut 46 therein adjacent the first body working surface 26. The undercut 46 must have a length measured from the first body working surface 26 of less than the dimension D of member 20. Undercut 46 serves to facilitate positioning the wrench into engagement with member 20 as it is being ratcheted.

An additional design difference of the arrangement of FIG. 3 compared to FIG. 1 is the provision of a recess or notch 48 in the torqueing jaw working surface 24. By the provision of the recess 48 the torqueing jaw working surface 24 takes the form of a tooth having a working surface 24 in an edge which may be sharp, blunt or rounded for engaging member 20. The tooth 24 could obviously be a material harder than the wrench body 12, such as the use of an element 40A as in FIG. 2.

FIGS. 5, 6 and 7 show an alternate embodiment of the invention wherein the wrench may be utilized not only to ratchet an octagonal member but also to ratchet a hexagonal member. The wrench of FIG. 5 is essentially that of the arrangement of FIG. 1 having the recess 48 as shown in the embodiment of FIG. 3 and further, having a V-shaped notch 50 at the intersection of the second body working surface 28 with the third body working surface 30, and a V-shaped notch 52 in the first body working surface 26 adjacent the intersection with the second body working surface 28. As shown in FIG. 6, an octagonal member 20 is received in the wrench and is contacted by the same working surfaces as described relative to FIG. I. A hexagonal member 54 is received in the wrench as shown in FIG. 7 and is engaged by the torqueing jaw working surface 24, notch 50, notch 52, and backup jaw working surface 22. The hexagonal member is ratcheted in the same way as the octagonal member. Thus the embodiment of the wrench in FIGS. 5, 6 and 7 may be successfully employed to ratchet either hexagonal or octagonal members in an arrangement wherein no moving parts are employed.

It can be seen that the embodiment of FIGS. 5, 6 and 7 may employ the various alternate features of FIGS. 2 and 3. including the removable handle means. the utilization of wear resistant inserts. the adjustable jaw arrangement, and the provision of retaining portions to prevent the wrench from slipping from the member to be ratcheted.

While the invention has been described with a certain degree of particularity it is manifest that many changes may be made in the details of construction and arrangement of components without departing from the spirit and scope of this disclosure. It is understood that this invention is not limited to the embodiments set forth herein for purposes of exemplification, but is limited only by the scope of the attached claim or claims, including the full range of equivalency to which each element thereof is entitled.

What is claimed is:

l. A ratcheting wrench for an octagonal and a hexagonal member, the width across opposite corners of the octagonal member being designated by B, the width across opposite sides of the member being designated by A. and the length along a side of the member by D. the wrench comprising: a body;

a handle means attached to the body;

two spaced apart, parallel jaws designated a torquering jaw and a backup jaw. the jaws extending from the wrench body in the direction opposite the handle means, the backup jaw having a planar working surface facing the torqueing jaw. the torqueing jaw having a working surface. facing the backup jaw working surface the torqueing jaw working surface being in the form of a projecting tooth. the distance between said backup and torqueing jaw working surfaces being slightly greater than A. and the body having member engaging working surfaces between the backup jaw and torqueing jaw working surfaces defined by:

a. a first body working surface of length slightly greater than D intersecting said backup jaw working surface at an angle of 45.

b. a second body working surface of length less than D intersecting said first body working surface at an angle of 45. the plane of the second body working surface being perpendicular to the plane of said backup jaw working surface. and

c. a third body working surface of length slightly greater than D and at a 45 angle with respect to said second body working surface.

aid torqueing jaw terminating at the outer end thereof opposite said handle in an inclined slipping surface adjacent said torqueing jaw working surface. the plane of the inclined slipping surface intersecting the plane of said backup jaw working surface at an acute angle and in the direction of said handle.

said torqueing jaw working surface having a recess therein formed by the intersection of said third body working surface and said projecting tooth. the distance between said backup jaw working surface and said recess being greater than A.

said first body working surface having a first V-

Claims (1)

1. A ratcheting wrench for an octagonal and a hexagonal member, the width across opposite corners of the octagonal member being designated by B, the width across opposite sides of the member being designated by A, and the length along a side of the member by D, the wrench comprising: a body; a handle means attached to the body; two spaced apart, parallel jaws designated a torquering jaw and a backup jaw, the jaws extending from the wrench body in the direction opposite the handle means, the backup jaw having a planar working surface facing the torqueing jaw, the torqueing jaw having a working surface, facing the backup jaw working surface the torqueing jaw working surface being in the form of a projecting tooth, the distance between said backup and torqueing jaw working surfaces being slightly greater than A, and the body having member engaging working surfaces between the backup jaw and torqueing jaw working surfaces defined by: a. a first body working surface of length slightly greater than D intersecting said backup jaw working surface at an angle of 45*, b. a second body working surface of length less than D intersecting said first body working surface at an angle of 45*, the plane of the second body working surface being perpendicular to the plane of said backup jaw working surface, and c. a third body working surface of length slightly greater than D and at a 45* angle with respect to said second body working surface, said torqueing jaw terminating at the outer end thereof opposite said handle in an inclined slipping surface adjacent said torqueing jaw working surface, the plane of the inclined slipping surface intersecting the plane of said backup jaw working surface at an acute angle and in the direction of said handle, said torQueing jaw working surface having a recess therein formed by the intersection of said third body working surface and said projecting tooth, the distance between said backup jaw working surface and said recess being greater than A, said first body working surface having a first V-shaped notch formed therein adjacent the intersection of said first body working surface with said second body working surface and a second V-shaped notch formed at the end of said second body working surface opposite said first body working surface, said third body working surface forming one side of said second Vshaped notch, said recess in said torqueing jaw working surface, said first and second V-shaped notches, and said backup jaw working surface engaging a hexagonal member.
US3881377A 1972-12-15 1972-12-15 Ratcheting wrench for octagonal members Expired - Lifetime US3881377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3881377A US3881377A (en) 1972-12-15 1972-12-15 Ratcheting wrench for octagonal members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3881377A US3881377A (en) 1972-12-15 1972-12-15 Ratcheting wrench for octagonal members

Publications (1)

Publication Number Publication Date
US3881377A true US3881377A (en) 1975-05-06

Family

ID=23223871

Family Applications (1)

Application Number Title Priority Date Filing Date
US3881377A Expired - Lifetime US3881377A (en) 1972-12-15 1972-12-15 Ratcheting wrench for octagonal members

Country Status (1)

Country Link
US (1) US3881377A (en)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955450A (en) * 1975-04-25 1976-05-11 James R. Head Adjustable wrench for torqueing and ratcheting a symmetrical polygon member
US4167882A (en) * 1976-03-17 1979-09-18 Siwersson Olle Lennart Adjustable wrench
WO1984001317A1 (en) * 1982-09-30 1984-04-12 Continental Tools Inc Multiple use wrench
US4607547A (en) * 1985-02-06 1986-08-26 Martus Donald G Stripped hex head drive socket
US4776244A (en) * 1986-06-16 1988-10-11 Snap-On Tools Corporation Open-end wrench
US4838132A (en) * 1982-03-11 1989-06-13 Donald Pyles Adjustable wrench
US4880245A (en) * 1988-04-29 1989-11-14 Carbonic Systems Of America, Inc. Chuck for concrete slab dowels
US4889020A (en) * 1987-08-31 1989-12-26 Baker David R Open end ratchet type wrench
US5131312A (en) * 1989-09-18 1992-07-21 Macor Richard J Surface conforming, torque enhancing wrench
EP0580177A1 (en) * 1992-07-23 1994-01-26 Snap-On Tools Corporation Speed wrench
WO1996015879A1 (en) * 1994-11-21 1996-05-30 Pradelski William M Ratchetable open-ended wrench
US5551322A (en) * 1989-07-11 1996-09-03 Snap-On Technologies, Inc. Speed wrench
US5904076A (en) * 1997-10-28 1999-05-18 Siwy; Charles C. Nut removal device
US5953968A (en) * 1998-05-15 1999-09-21 Proprietary Technologies, Inc. Surface conforming, torque enhancing wrench with non-parallel working surfaces
US6055890A (en) * 1997-03-06 2000-05-02 Lim; Byeong-Hak Spanner or monkey spanner to which a force to only one direction
GB2347376A (en) * 1999-03-01 2000-09-06 Tsai Fa Liu Reciprocal wrench
US6158309A (en) * 1998-10-21 2000-12-12 David Baker, Inc. Double-drive double-lock ratcheting wrench
US6202518B1 (en) * 1996-09-27 2001-03-20 Frank A. Moffitt, Jr. Floating, non-conductive hand tools
US6276240B1 (en) 1998-11-09 2001-08-21 Gordon D. Blacklock Multi-sized, reversible ratcheting action open end wrench
US6336382B2 (en) 1997-04-17 2002-01-08 Diego Cerda Ratchet wrench head member and system
US20040016324A1 (en) * 1998-04-13 2004-01-29 Wright Richard B. Asymmetric wrench and fastener system
US20060266164A1 (en) * 2005-05-31 2006-11-30 Hua Gao Open-ended ratcheting wrench having adjusting mechanism
US20070074607A1 (en) * 2005-09-30 2007-04-05 Balls Robert J Ratchet wrench having a pivotal body
US20070221016A1 (en) * 2006-03-21 2007-09-27 Xtools, Llc Buoyant metal composite pliers
US20080053279A1 (en) * 2006-09-05 2008-03-06 Arthur Wu Adjustable spanner for preventing nut from rounding apex
US20080245196A1 (en) * 2006-09-05 2008-10-09 Arthur Wu Monkey Wrench
US20110259156A1 (en) * 2008-11-05 2011-10-27 Benyamin Grolman Tool and method for applying torque
US20120297936A1 (en) * 2011-05-25 2012-11-29 E-Make Tools Co., Ltd Open end wrench
US20120325059A1 (en) * 2011-06-23 2012-12-27 Alan Hamilton Swing Quasi open-end wrench
US20130192428A1 (en) * 2011-05-25 2013-08-01 Kung-Cheng Chen Open end wrench
US9522458B2 (en) * 2014-09-30 2016-12-20 Yung Fong Tools Co., Ltd. Clamping structure for open end wrench

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329061A (en) * 1943-05-01 1943-09-07 John F Kopczynski Coupling device
US2600617A (en) * 1948-12-01 1952-06-17 Williams J H & Co Adjustable crowfoot wrench
US2652735A (en) * 1949-03-22 1953-09-22 Glenn W Wilder Open-end wrench
US2909954A (en) * 1958-02-03 1959-10-27 Rhoads Stanley Plastic open end wrench
US3242775A (en) * 1965-08-11 1966-03-29 Walter F Hinkle Wrench for engaging nut flats to inhibit marring the nut
US3745859A (en) * 1971-09-16 1973-07-17 J Evans Ratchet-type speed wrench

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329061A (en) * 1943-05-01 1943-09-07 John F Kopczynski Coupling device
US2600617A (en) * 1948-12-01 1952-06-17 Williams J H & Co Adjustable crowfoot wrench
US2652735A (en) * 1949-03-22 1953-09-22 Glenn W Wilder Open-end wrench
US2909954A (en) * 1958-02-03 1959-10-27 Rhoads Stanley Plastic open end wrench
US3242775A (en) * 1965-08-11 1966-03-29 Walter F Hinkle Wrench for engaging nut flats to inhibit marring the nut
US3745859A (en) * 1971-09-16 1973-07-17 J Evans Ratchet-type speed wrench

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955450A (en) * 1975-04-25 1976-05-11 James R. Head Adjustable wrench for torqueing and ratcheting a symmetrical polygon member
US4167882A (en) * 1976-03-17 1979-09-18 Siwersson Olle Lennart Adjustable wrench
US4838132A (en) * 1982-03-11 1989-06-13 Donald Pyles Adjustable wrench
WO1984001317A1 (en) * 1982-09-30 1984-04-12 Continental Tools Inc Multiple use wrench
US5136902A (en) * 1982-09-30 1992-08-11 Ma Homer W Multiple use wrench
US4607547A (en) * 1985-02-06 1986-08-26 Martus Donald G Stripped hex head drive socket
US4776244A (en) * 1986-06-16 1988-10-11 Snap-On Tools Corporation Open-end wrench
US4889020A (en) * 1987-08-31 1989-12-26 Baker David R Open end ratchet type wrench
US4880245A (en) * 1988-04-29 1989-11-14 Carbonic Systems Of America, Inc. Chuck for concrete slab dowels
US5551322A (en) * 1989-07-11 1996-09-03 Snap-On Technologies, Inc. Speed wrench
US5131312A (en) * 1989-09-18 1992-07-21 Macor Richard J Surface conforming, torque enhancing wrench
EP0580177A1 (en) * 1992-07-23 1994-01-26 Snap-On Tools Corporation Speed wrench
WO1996015879A1 (en) * 1994-11-21 1996-05-30 Pradelski William M Ratchetable open-ended wrench
US5533428A (en) * 1994-11-21 1996-07-09 Pradelski; William M. Ratchetable open-ended wrench
US6202518B1 (en) * 1996-09-27 2001-03-20 Frank A. Moffitt, Jr. Floating, non-conductive hand tools
US6055890A (en) * 1997-03-06 2000-05-02 Lim; Byeong-Hak Spanner or monkey spanner to which a force to only one direction
US6336382B2 (en) 1997-04-17 2002-01-08 Diego Cerda Ratchet wrench head member and system
US5904076A (en) * 1997-10-28 1999-05-18 Siwy; Charles C. Nut removal device
US7174811B2 (en) 1998-04-13 2007-02-13 Wright Tool Company Asymmetric wrench and fastener system
US6698316B1 (en) 1998-04-13 2004-03-02 Wright Tool Company Asymmetrical fastening system
US6725746B1 (en) 1998-04-13 2004-04-27 Wright Tool Company High torque wrenching system
US6904833B2 (en) 1998-04-13 2005-06-14 Wright Tool Company Asymmetric wrench and fastener system
US20040016324A1 (en) * 1998-04-13 2004-01-29 Wright Richard B. Asymmetric wrench and fastener system
US6698315B1 (en) 1998-04-13 2004-03-02 Wright Tool Company High torque wrenching system
US20050223854A1 (en) * 1998-04-13 2005-10-13 Wright Richard B Asymmetric wrench and fastener system
US7484440B2 (en) 1998-04-13 2009-02-03 Wright Tool Company Asymmetric wrench and fastener system
US5953968A (en) * 1998-05-15 1999-09-21 Proprietary Technologies, Inc. Surface conforming, torque enhancing wrench with non-parallel working surfaces
US6158309A (en) * 1998-10-21 2000-12-12 David Baker, Inc. Double-drive double-lock ratcheting wrench
US6276240B1 (en) 1998-11-09 2001-08-21 Gordon D. Blacklock Multi-sized, reversible ratcheting action open end wrench
GB2347376A (en) * 1999-03-01 2000-09-06 Tsai Fa Liu Reciprocal wrench
US20060266164A1 (en) * 2005-05-31 2006-11-30 Hua Gao Open-ended ratcheting wrench having adjusting mechanism
US20070074607A1 (en) * 2005-09-30 2007-04-05 Balls Robert J Ratchet wrench having a pivotal body
US20070221016A1 (en) * 2006-03-21 2007-09-27 Xtools, Llc Buoyant metal composite pliers
US20080053279A1 (en) * 2006-09-05 2008-03-06 Arthur Wu Adjustable spanner for preventing nut from rounding apex
US20080245196A1 (en) * 2006-09-05 2008-10-09 Arthur Wu Monkey Wrench
US7685911B2 (en) * 2006-09-05 2010-03-30 Proxene Tools Co., Ltd. Monkey wrench
US20110259156A1 (en) * 2008-11-05 2011-10-27 Benyamin Grolman Tool and method for applying torque
US20120297936A1 (en) * 2011-05-25 2012-11-29 E-Make Tools Co., Ltd Open end wrench
US20130192428A1 (en) * 2011-05-25 2013-08-01 Kung-Cheng Chen Open end wrench
US20120325059A1 (en) * 2011-06-23 2012-12-27 Alan Hamilton Swing Quasi open-end wrench
US8485072B2 (en) * 2011-06-23 2013-07-16 Alan Hamilton Swing Quasi open-end wrench
US9522458B2 (en) * 2014-09-30 2016-12-20 Yung Fong Tools Co., Ltd. Clamping structure for open end wrench

Similar Documents

Publication Publication Date Title
US3664213A (en) Wrench
US5287777A (en) Ratcheting open end wrench
US6598498B1 (en) Fastener extractor
US6237449B1 (en) Quickly-adjustable gripping and cutting tools
US20080066583A1 (en) Flange wrench
US5156508A (en) Cam action clamp
US5014379A (en) Combination tool
US4571808A (en) Radiator hose separator pliers construction
US3877327A (en) Socket wrenches
US3424039A (en) Adjustable inserted wrench combination tool including link means having plural openings
US2779089A (en) Puller tool having a manually operated sliding hammer
US5454283A (en) Ratchet line wrench tool
US4104752A (en) Multipurpose tool
US2701977A (en) Reversible ratchet wrench
US4049253A (en) Toe clamp
US3717054A (en) Open-end wrench with integral ratcheting means
US6003411A (en) Cam-lobed salvage tool
US4151763A (en) Combination adjustable open-end and box-end wrench
US1579992A (en) Wrench
US4158975A (en) Unidirectional gripping open end wrench
US2592781A (en) Ratchet wrench
US4625598A (en) Positive engagement screw driver tool
US4602534A (en) Ratchet wrench
US2797600A (en) Ratchet type movable jaw wrench
US4862773A (en) Collet type fastener removal tool