US3894451A - Water-pump pliers - Google Patents

Water-pump pliers Download PDF

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Publication number
US3894451A
US3894451A US440241A US44024174A US3894451A US 3894451 A US3894451 A US 3894451A US 440241 A US440241 A US 440241A US 44024174 A US44024174 A US 44024174A US 3894451 A US3894451 A US 3894451A
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US
United States
Prior art keywords
jaws
handles
parallelogram
recesses
along
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
US440241A
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English (en)
Inventor
Karl Putsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3894451A publication Critical patent/US3894451A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
    • B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
    • B25B13/5025—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool
    • B25B13/5041—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool with movable or adjustable jaws
    • B25B13/505—Pivotally moving or adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • jaw recesses define two deepest points I thereof as seen in a longitudinal direction of the jaws [56] References Cited and the two deepest points are staggered with respect h th UNITED STATES PATENTS eac 371,476 10/1887 Reese 81/425 A 1 Claim, 3 Drawing Figures WATER-PUMP PLIERS The present invention relates to water-pump pliers.
  • the present invention relates to water-pump pliers having plier handles which are displaceable with respect to each other in order to change the size of the opening or mouth of the pliers defined by the plier jaws which have recesses forming the plier opening lying on opposite sides of the junction plane of the jaws.
  • I thus provide a water pump pliers in which the two deepest points of the jaw recesses, as seen in the longitudinal direction of the jaws, are staggered with respect to each other.
  • each recess is developed as an angle with sides of unequal length.
  • the opposite longer sides of the parallelogram to be provided with teeth which are directed towards each other, the tips of the teeth of the upper jaw pointing in approximately the direction of the pivot of the plier handles.
  • the lines of extension of the longer sides of the parallelogram extend spaced from and on the other side of the pivot point of the plier handles.
  • Still another advantageous development in accordance with the present invention resides in the fact that the teeth of the longer side of the parallelogram of the lower jaw are developed as forward directed sawteeth.
  • the water-pump pliers in accordance with the invention are of increased value in use. After grasping the material which is to be turned, whether it be a length of pipe, a socket or a nut, there is always a three-point attack of the opening of the pliers on the corresponding part. In particular a better holding of the opening of the pliers is also obtained in the case of hexagon nuts. If the conditions permit only a partial turning of the hexagon nut by means of the pliers, the water-pump pliers can, after each partial turn, come into an equally good position of attack with respect to the hexagon nut.
  • the three-point attack of the plier opening is perferably so selected that the lower jaw is in two-point contact with the part grasped and the upper jaw in one-point contact. In this way the lever forces acting on the water-pump pliers can be transmitted better.
  • the plier opening which permits the advantageous three-point attack is favorably formed by two triangles of sides of unequal length with a common base extending in the junction plane of the jaws. This permits a simplified manufacture of the jaw recesses and prevents the lowest point of the recesses being opposite each other.
  • the triangles are preferably so shaped that they supplement each other to form a parallelogram with its diagonal (or the base of the triangular recesses) lying in the junction plane of the jaws.
  • the two longer sides of the parallelogram-shaped opening of the pliers serve essentially to transmit force, the longer side of the parallelogram on the lower jaw exerting a compressive force and the longer side of the parallelogram on the upper jaw exerting a tension force on the part grasped.
  • the longer sides of the parallelogram are equipped with teeth aligned in such a manner that maximum forces can be transmitted with respect to the water-pump pliers.
  • FIG. 1 is a plan view of the water-pump pliers in a basic position
  • FIG. 2 is a side view of the pliers, shown in the upper region thereof;
  • FIG. 3 is a view of the water-pump pliers in an active position.
  • the water-pump pliers of the present invention have two plier handles 1 and 2 which continue on the other side of the pivot point 3 of the plier handles to form the jaws 4 and 5.
  • the pivot 3 of the plier handles comprises a pin permanently inserted in the plier handle 2 and the protruding sections of which are provided with flattened portions 3'.
  • the plier handle 2 which passes through the plier handle 1 in an opening 6 has the flattened sections extending into corresponding longitudinal slot 7 of the plier handle 1.
  • the long edges of the slots 7 are of undulated shape in such a manner that the undulated course is adapted to the curvature of the pin 3.
  • the dis- I tance between the vertices of the undulations is somewhat larger than the height resulting over the flattened portion 3 of the pin 3.
  • the undulated course on the one side of the guide slot 7 is provided with steps 8 which cooperate with the flattened portions 3 and limit the closing movement with the plier handles 1, 2 moved together.
  • the lower jaw 4 seated on the plier handle 1 and the upper jaw extending from the plier handle 1 have the recesses 10, 11 which form the plier opening 9 and lie on opposite sides of the junction plane xx of the jaws.
  • Each recess 10, 11 has the form of an angle with sides 12, 13 and l4, 15 respectively of unequal length.
  • the triangular recesses 10, 11, which have a common base along this plane x-x, and therefore the deepest points S1 and S2, seen in the longitudinal direction of the jaws 4, 5, staggered with respect to each other.
  • the triangular recesses supplement one another to collectively form a parallelogram, see Fig. l.
  • the diagonal extends in the junction plane x-x of the jaws.
  • the extension lines L1 and L2 of the longer sides 12, 14 of the parallelogram extend in every active position spaced from and on the other side from the pivot 3 of the plier handles.
  • the longer handle 14 of the lower jaw 4 exerts a compressive load and the opposite handle 12 of the upper jaw 5 a tensile load on the part to be turned.
  • the opposite longer parallelogram sides 12, 14 are provided with teeth 16, 17 directed against each other in such a manner that the tips of the teeth 16' of the upper jaw point approximately in the direction of the pivot 3 of the plier handles, while the tips 17 of the lower-jaw teeth 17 are directed in the opposite direction.
  • the shorter sides 13, 15 have no teeth.
  • the advantageous alignment of the toothed longer parallelogram sides makes it possible, starting from this position and by exclusively acting on the plier handle 2, in the direction indicated by the arrow to effect a turning of the part 18 without the plier handle 1 having to be acted on in this connection in the direction of the arrow z. This means in a figurative sense that upon use of the pliers,
  • the plier jaws 4, 5 are provided with a fine toothing 19 outside of the plier opening 9 along the plane x-x.
  • a water-pump pliers comprising:
  • pivot means pivotally interconnecting said handles at a fulcrum shiftable along one of said handles, said pivot means including an elongated slot with undulating flanks formed in said one of said handles and a pin receivable in said slot and fixed to the other of said handles for selective positioning along said slot;
  • said jaws formed on said handles at ends thereof opposite said portions across said fulcrum and projecting transversely from said handles, said jaws having confronting recesses of triangular configuration with each recess having a vertex, a long side and a short side, the vertices and said recesses being staggered longitudinally along said jaws with respect to one another, the triangles of said recesses defining a parallelogram and having a common base along a diagonal of said parallelogram corresponding to ajunction plane of said jaws in a closed position thereof, said jaws having confronting faces lying along said plane on opposite sides of said parallelogram;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US440241A 1973-02-23 1974-02-06 Water-pump pliers Expired - Lifetime US3894451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7306900 1973-02-23

Publications (1)

Publication Number Publication Date
US3894451A true US3894451A (en) 1975-07-15

Family

ID=6637006

Family Applications (1)

Application Number Title Priority Date Filing Date
US440241A Expired - Lifetime US3894451A (en) 1973-02-23 1974-02-06 Water-pump pliers

Country Status (7)

Country Link
US (1) US3894451A (es)
JP (1) JPS5631230B2 (es)
AU (1) AU469272B2 (es)
ES (1) ES195879Y (es)
FR (1) FR2218971B1 (es)
GB (1) GB1370605A (es)
IT (1) IT995667B (es)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116305A1 (de) * 1983-02-02 1984-08-22 Knipex-Werk C. Gustav Putsch Wasserpumpenzange
DE3631995A1 (de) * 1986-09-20 1988-03-31 Franz Weber Vorrichtung fuer die schraubbetaetigung von panzergewinde-verschraubungen
DE4000883A1 (de) * 1989-01-27 1990-08-23 Super Ego Tools Zange
US4989479A (en) * 1989-11-02 1991-02-05 Cooper Industries, Inc. Plier jaws
US5351585A (en) * 1993-08-11 1994-10-04 Petersen Manufacturing Co. Inc. Large capacity locking pliers
US5377567A (en) * 1993-02-04 1995-01-03 Petersen Manufacturing Co., Inc. Bicycle tool
WO1998021012A1 (en) * 1996-11-14 1998-05-22 Sandvik Aktiebolag Pipe wrench with differentiated tooth size
USD422863S (en) * 1999-01-27 2000-04-18 Cooper Industries, Inc. Slip joint pliers
US20030196526A1 (en) * 2002-04-19 2003-10-23 Pang-Chung Wang Pliers
US20060053563A1 (en) * 2004-09-14 2006-03-16 Skinner Lyle J Multipurpose gripping tool
WO2006095379A1 (en) * 2005-03-11 2006-09-14 Omb S.R.L. Mounting system for a household appliance
US20070086851A1 (en) * 2005-10-19 2007-04-19 Ching-Mei Lu Securing assembly for use between a bike trailer and a bike
US20080216615A1 (en) * 2007-03-09 2008-09-11 Ming-Chieh Wu Structure of pliers
US20130076102A1 (en) * 2010-03-18 2013-03-28 Southern Engineering Services Pty Ltd Tool system and tool for mining machine
US20150239102A1 (en) * 2011-07-12 2015-08-27 Ming Chieh Wu Locking Pliers
USD771456S1 (en) 2014-08-01 2016-11-15 Milwaukee Electric Tool Corporation Pliers with control key
US9492911B2 (en) 2015-01-15 2016-11-15 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
USD776506S1 (en) * 2014-11-12 2017-01-17 Magna Industries, Inc. Pliers
USD782891S1 (en) 2015-04-02 2017-04-04 Milwaukee Electric Tool Corporation Locking pliers
US9855642B2 (en) 2011-07-12 2018-01-02 Ming Chieh Wu Effort-saving locking pliers
US10207393B2 (en) 2011-07-12 2019-02-19 Ming Chieh Wu Locking pliers
USD845098S1 (en) * 2018-02-21 2019-04-09 Snap-On Incorporated Pliers with teeth in slot
USD858232S1 (en) 2018-07-31 2019-09-03 Steven Gehrke Adjustable wrench with recessed jaws
USD865465S1 (en) * 2018-02-21 2019-11-05 Snap-On Incorporated Pliers handles
US10597092B2 (en) 2017-12-21 2020-03-24 The Toro Company Work vehicle and suspension system for use with same
US10661414B2 (en) 2018-02-21 2020-05-26 Snap-On Incorporated Tool with handle offsets
USD898532S1 (en) * 2016-11-15 2020-10-13 Hangzhou Great Star Industrial Co. Ltd. Plier
USD966852S1 (en) * 2019-12-20 2022-10-18 Apex Brands, Inc. Tongue-in-groove pliers
US11511398B2 (en) 2018-12-28 2022-11-29 Apex Brands, Inc. Pipe wrench with improved design for side bite

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129124A (ja) * 1982-01-29 1983-08-02 Hitachi Ltd 清浄作業室
JPS60173838U (ja) * 1984-04-26 1985-11-18 株式会社竹中工務店 垂直層流型クリンル−ム
JPS6191433A (ja) * 1984-10-11 1986-05-09 Hitachi Ltd クリ−ンル−ム
FR2581335B1 (fr) * 1985-05-03 1989-06-16 Facom Pince a machoires reglables
JPH0733561U (ja) * 1993-11-30 1995-06-20 北陽産業株式会社 ウォーターポンププライヤー
FR2821578B1 (fr) * 2001-03-05 2003-12-26 Facom Outil notamment pince ou cle, dont les mors de serrage sont pourvus de faces dentees
US8056451B2 (en) * 2008-07-28 2011-11-15 Irwin Industrial Tool Company Locking pliers
US7861622B2 (en) 2008-07-28 2011-01-04 Irwin Industrial Tool Company Locking pliers
DE202013101985U1 (de) * 2013-05-07 2013-05-17 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Greifzange

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US371476A (en) * 1887-10-11 George a
US2558440A (en) * 1947-04-22 1951-06-26 Joseph N Johnson Adjustable fulcrum pliers
US2571819A (en) * 1946-11-29 1951-10-16 B H B Mfg Co Inc Plier type shot splitting tool
US2593164A (en) * 1946-11-12 1952-04-15 Harold L Mcadoo Pliers for round work

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130238U (es) * 1974-08-26 1976-03-04

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US371476A (en) * 1887-10-11 George a
US2593164A (en) * 1946-11-12 1952-04-15 Harold L Mcadoo Pliers for round work
US2571819A (en) * 1946-11-29 1951-10-16 B H B Mfg Co Inc Plier type shot splitting tool
US2558440A (en) * 1947-04-22 1951-06-26 Joseph N Johnson Adjustable fulcrum pliers

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116305A1 (de) * 1983-02-02 1984-08-22 Knipex-Werk C. Gustav Putsch Wasserpumpenzange
DE3631995A1 (de) * 1986-09-20 1988-03-31 Franz Weber Vorrichtung fuer die schraubbetaetigung von panzergewinde-verschraubungen
DE4000883A1 (de) * 1989-01-27 1990-08-23 Super Ego Tools Zange
US4989479A (en) * 1989-11-02 1991-02-05 Cooper Industries, Inc. Plier jaws
US5377567A (en) * 1993-02-04 1995-01-03 Petersen Manufacturing Co., Inc. Bicycle tool
US5351585A (en) * 1993-08-11 1994-10-04 Petersen Manufacturing Co. Inc. Large capacity locking pliers
WO1998021012A1 (en) * 1996-11-14 1998-05-22 Sandvik Aktiebolag Pipe wrench with differentiated tooth size
US6393951B1 (en) 1996-11-14 2002-05-28 Kapman Ab Pipe wrench with differentiated tooth size
USD422863S (en) * 1999-01-27 2000-04-18 Cooper Industries, Inc. Slip joint pliers
US20030196526A1 (en) * 2002-04-19 2003-10-23 Pang-Chung Wang Pliers
US7162758B2 (en) 2004-09-14 2007-01-16 Skinner Lyle J Multipurpose gripping tool
US20060053563A1 (en) * 2004-09-14 2006-03-16 Skinner Lyle J Multipurpose gripping tool
WO2006095379A1 (en) * 2005-03-11 2006-09-14 Omb S.R.L. Mounting system for a household appliance
US20080315049A1 (en) * 2005-03-11 2008-12-25 Omb S.R.L. Mounting System for a Household Appliance
US7367745B2 (en) * 2005-10-19 2008-05-06 Ching-Mei Lu Securing assembly for use between a bike trailer and a bike
US20070086851A1 (en) * 2005-10-19 2007-04-19 Ching-Mei Lu Securing assembly for use between a bike trailer and a bike
US20080216615A1 (en) * 2007-03-09 2008-09-11 Ming-Chieh Wu Structure of pliers
US20130076102A1 (en) * 2010-03-18 2013-03-28 Southern Engineering Services Pty Ltd Tool system and tool for mining machine
US20150239102A1 (en) * 2011-07-12 2015-08-27 Ming Chieh Wu Locking Pliers
US10207393B2 (en) 2011-07-12 2019-02-19 Ming Chieh Wu Locking pliers
US9855642B2 (en) 2011-07-12 2018-01-02 Ming Chieh Wu Effort-saving locking pliers
USD771456S1 (en) 2014-08-01 2016-11-15 Milwaukee Electric Tool Corporation Pliers with control key
USD811186S1 (en) 2014-08-01 2018-02-27 Milwaukee Electric Tool Corporation Pliers with control key
USD776506S1 (en) * 2014-11-12 2017-01-17 Magna Industries, Inc. Pliers
US9492911B2 (en) 2015-01-15 2016-11-15 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
US10207394B2 (en) 2015-01-15 2019-02-19 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
US11154965B2 (en) 2015-01-15 2021-10-26 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
US11745313B2 (en) 2015-01-15 2023-09-05 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
USD782891S1 (en) 2015-04-02 2017-04-04 Milwaukee Electric Tool Corporation Locking pliers
USD898532S1 (en) * 2016-11-15 2020-10-13 Hangzhou Great Star Industrial Co. Ltd. Plier
US10597092B2 (en) 2017-12-21 2020-03-24 The Toro Company Work vehicle and suspension system for use with same
US11548120B2 (en) 2018-02-21 2023-01-10 Snap-On Incorporated Tool with handle offsets
USD845098S1 (en) * 2018-02-21 2019-04-09 Snap-On Incorporated Pliers with teeth in slot
USD865465S1 (en) * 2018-02-21 2019-11-05 Snap-On Incorporated Pliers handles
US10661414B2 (en) 2018-02-21 2020-05-26 Snap-On Incorporated Tool with handle offsets
USD858232S1 (en) 2018-07-31 2019-09-03 Steven Gehrke Adjustable wrench with recessed jaws
US11511398B2 (en) 2018-12-28 2022-11-29 Apex Brands, Inc. Pipe wrench with improved design for side bite
US11911880B2 (en) 2018-12-28 2024-02-27 Apex Brands, Inc. Pipe wrench with improved design for side bite
USD991000S1 (en) 2019-12-20 2023-07-04 Apex Brands, Inc. Tongue-in-groove pliers
USD966852S1 (en) * 2019-12-20 2022-10-18 Apex Brands, Inc. Tongue-in-groove pliers

Also Published As

Publication number Publication date
ES195879Y (es) 1976-04-16
ES195879U (es) 1975-02-01
JPS5631230B2 (es) 1981-07-20
GB1370605A (en) 1974-10-16
AU6599174A (en) 1975-08-28
FR2218971A1 (es) 1974-09-20
AU469272B2 (en) 1976-02-05
JPS49116699A (es) 1974-11-07
FR2218971B1 (es) 1977-08-05
IT995667B (it) 1975-11-20

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