US2520808A - Grip for pliers - Google Patents

Grip for pliers Download PDF

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Publication number
US2520808A
US2520808A US64779A US6477948A US2520808A US 2520808 A US2520808 A US 2520808A US 64779 A US64779 A US 64779A US 6477948 A US6477948 A US 6477948A US 2520808 A US2520808 A US 2520808A
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United States
Prior art keywords
grip
improved
distal
pliers
plastic
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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
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US64779A
Inventor
Robert J Miller
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Robert J Miller
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Priority to US64779A priority Critical patent/US2520808A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions
    • B25G1/10Handle constructions characterised by material or shape
    • B25G1/12Handle constructions characterised by material or shape electrically insulating material
    • 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
    • Y10S16/00Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/12Hand grips, preformed and semi-permanent
    • 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
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T16/00Miscellaneous hardware [e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.]
    • Y10T16/48Insulated handle
    • 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
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/20Control lever and linkage systems
    • Y10T74/20576Elements
    • Y10T74/20732Handles
    • Y10T74/20876Caps and covers

Description

A118' 29, 195,0 R. J. MILLER 2,520,808
GRIP FOR PLIERs Filed Deo. 11, 1948 INVENTOR. Kozr zl /fl/LLe/ Patente ug. 29,
. UNITED STATESl PATENT OFFICE p GRIP FOR PLIERS Robert J.Mi11er, Franklin, ra. I Application December 11, 1948, Serial No. 64,779
, v 1 i ThisV invention relates to' a dielectric grip for electrician's or lineman's pliers and for the handles of other tools, especially those used in connection with lo-wand, particularly, high-tension work.
One important object of the invention is to provide a handle-grip or cover which will aiford an improved and firmer hand grasp. The handles of pliers as universally made taper considerably towards their distal ends (for reasons based mainly on production requirements). Yet it will be observed that it is this distal portion of= the plier handles which is grasped in the handle. Hand grips as heretofore marketed are made of substantially uniform thickness, so that the combined thickness of the tool handle together with its cover or grip still continues to diminish towards its distal ends. The improved hand-grip of this invention, on the other hand, is not made of uniform wall thickness. Nor is its outer shape tapered towards its distal end (as in a known prior art disclosure) On the contrary, the outer dimensions of the improved grip are Constant.
throughout its entire length. As a result of its constant outer dimensions, the improved grip presents a portion to be grpped by the hand which is of uniform dimension. Additionally, the improved plier grip is of overall dimensions (i. e., in width and thickness) which are very appreciably greater than the uniform-wall thick- 'o'ut its length. More particularly; the inner bore decreases in cross-sectional area towards the distal end of the grips; The diminishment of crosssectional area of the inner bore is in conformity with the decrease in dimension 'of the plier handle in the sameV direction. Accordingly, the improved grip may be readily attached to the plier handles.
Closely allied with this object is the third important object of the invention, viz., to provide a dielectric grip which will be more firmly secured on the plier handles. This is achieved by making the improved grip of a rigid material which in being attached onto the plier handle is deformed forcibly to the shape or configuration of the han- 1c1aim. (01.16-1'18) 2 dle. I have found that this, and vother.v results, may be achieved by making the improvedV grip of a plastic material.
Stepping at this point to recount the provisions of the first three objects of the invention thus far pointed out, it will be seen that the improved grip `takesthe form of a plastic (rigid) shell having constant outer dimensions but an inner 'bore which increases in cross-sectional area towards its distal end, and that the tapered plier handle is inserted in Vthe inner bore. The plastic 'shell is forced onto. the plier handle by impact with a mallet or by' knocking the end of the grip on a hard surface. The plastic grip is thus forced'to deform itself to the configuration of the plier handle, and to bind itself thereto in unyieldng securement. w
Incidentally, this provides a facile manner of 'attaching the improved hand grip tothe plier handle, which should be noted as an additional achievement of the second enumerated object, viz., ready attachment. Also, the Character of the plastic'material, which presents a solid hard surface, affords a firmer hand grip` which factor shouldibe noted together with the others men- `tioned above relative to the first object, viz., firmer hand grip. V
. Additionally, the use'ofthe plastic material enables surface deformations to, be provided which furnishes ideal vhand gripping properties, as will be more fully described.
.To continue with other objects, the fourth re- -lates to the greater dielectric strength of the improved plier grip (which is capable of withstanding 30,000 volts as compared with the 1,200 volts vofz dielectric grips as heretofore made). This object is achieved chiefiy because of these factors: ,The (plastic) 'material of which the improved hand grip is made; the increased over-,all thicknessof the improved hand grip as'comparedV with those heretofore marketed. Additionally, it will beV noted that the thickness of the shell constituting the improved deviceincreases towards the distal end of the grip, so that at the distal portion thereof where it is grasped, the improved device presents the greatest dielectric value.
The fifth principal object is the' increased strength of the improved grip which results not only from the (plastic) material used, and also from the increasing dimension of the shell wall towards its distal end. That end of the grip terminates in a rounded portion of increased thickness. The thickened end of the improved dielectric grips enters into consideration of the second object above, viz., the manner of attaching the 3 grip to plier handles, by accepting without ill effects either the impacts of a mallet in forcing the grip on the hand1e or the impacts of that end, against a hard blow-receiving surface. Inciden- Vtally, the increase of plastic material here assures I have shown a preferred embodiment ofmy in-A 'vention in the acoompanying drawing., wherein;
Fig. 1 is a front view of an improved di'e'lectric grip of the invention; v 1
Fig. 2 is a longitudinal sectional view taken on the line 2-2 of Fig. 1; 4 'i Fig. 3 is a cross-sectional view taken near the openfe'nd of the improved grip, on the line 3-;3 of Fi'gfl'; i I 'i Fig. 4 is a similar cross'sectional vview but taken ;'s'flbs'tantiallyV atV the Vmiddle point 'of the 'igrippo the line r4----ll of Fig. 1.; I
5 is a third cross-isectional view 'but taken near the distal 'end of vthe grip, on the line '5-`5 'of'Figl- 'and 1' Fig; 6 is a 'front View o f a pair of 'pliers with the improYed-dieleetric igri-ps 'attached thereto, one
ofthe :grips' being showninfsectio'n. i
' ti'hasla'lready'been explained iii the'statement of invention that the improved fgrip visv made 'f 'apiastic materiallfor the special reasoiis menabove); I have *found ideally ls'uitecl ffor 'these purposes, a plastic'material made url-der the trade-mark Tenite-2 and comprisingmixed heimis ef "a'tate end baw-rate.
f The improved plastic grip is of ou'ter bral sliapfe, ascl'early see-'n in Figs. '3-5, and its' `vo'u't'er dinirisions Vare iconstafit' thronghout the *length finale particnlarly, major 'di-mensin E''FiLgS'. 3,5an 1) and-the minor'difm'eision {-0 '(fsl'ig's. 3, a) an's'jz)v are cfistant througm'ut the length of Vthe fg'rip. The Walls 'of 'the Shell-;generally 'desi'gnate 'il-;are 'of'apireciabl thiel'- nss, so that the outer dimensioris-HL'ZL-are cofnsideralele (as, and' 'for the'reasohs, 'set'oiit'i'n the forg/orfg stateme-ritiof invention). f i v ""I'hinner bor'e '8, Figi. 2, iiireaes infcros'-se`ctional area from the 'closed-*end Tf l'the 'gri-ptowards the open'ed '6' thereof, 'so that'the inner boretapers :towards 'the vdist'al-*endz :('ezndf''of theipner hanar, as 'describe'd in'the for'egmg statement. A comparison of Figs. -1 vano.` V2,: and better, 'Figs 3, 4, 5, will 'reveal that'this areal iiicrea'se'bfz' theiinner bore is lin'the minor axis `10A ('Fig. 4.). and'not lin the lmajor 'ax'is (20A, Fig. 3), andieiilts from 'an increase in thicknes's' of'fthe tlifio` walls ti, Il in' Fig. lfcn-'either sidejof .the major 'ais 28A, which 'increase progressively, lffa, ztiafFig. 4;) and '|`l'lJ.,|-lb '(Fig; -5) "towards the distal 'end (Fig'. 5i) i-of the grip. i
. 'On the other hand, thetwowalls 2ii-, 21|, Fig. 94, on either 'side'of the minor axis IB'A, are 4ofiini'- form thickness, 'compared with Walls'v 52A, Ma, Zib; ysee alsoFig. 2. iCAs a matter of-Jfact,'lthe walls'lhi do? thick'en slightly towards the distal end I.. Fig. 2, exaggeratedly. shown 'in 'that flis i,
figure; the purpose of this is to permit withdrawal of the core in molding the plastic Shell.)
It will be observed, from Fig. 3, that the major walls 21,'2I and minor Walls II, Il are substantially of the same thickness. The reason for .this is to present a substantially um'formly thick Wall to initial force onto the end of the plier handle, to ease attachment of the improved grip and to avoid initial strains,
f 'Qne 'of the, hroaderfmajor) sides of the improved grip is provided with 'a knurled or other gripping surface 22, Fig. 1, which is on the outer Side of the pliers, as indicated in Fig. 6.
, As best seen in Fig. 2, the open end of the grip Shell is cut on a bias to present a planar surface 23, 'in the direction of the major axis, but angnlarlyinclined toward the longitudinal axis or length of thergrip. The purpose of this inclin 'or biased end 23, see now Fig. 6, is that When the improved dielectric grip is driven on lplier handle, as. in Pig. 6, more protection or eoverage is provided 'on the outside l'of the handle, as farfup towards the .pivotal point as possible, .yet allowing 'pli'erzfto 'close (because. of the absence of material on the inner facing surfaees near the :'pivot). Henceless metal is exposed, thuisaliding greater lSafety against the danger of `vshock.
I claim: v
A'dielectric grip to be driven-Gilera plie-r handl'e 4compriising, an elongated vshell of molderl and hardened,'resi1ient, insulating material, said shell having an `louter surface' 'which is 'oval cross section, a closed end, aniif'an open end, 'the length ofV the shall between closed and open ends constituting 'a gripping -portion, Vthe major and minor'aXes-of the oyal'outer surface'of said grippo'rtion being both u'zliform thronglioiit its length, said she'l'ihaling'fan Oval 'inner Vpore de- `-f.'1.'e'as'ir'ig Viii -eross'sectional varea towards 'said voloi-id end, to fprvidefa shel wall Vof :var'y'ing Vtiiekness whosefithilekness inereases towardthe cioseol fend,-'said fshellwall *adjacent v'either "end of the majbr axis of the boreprogressiveiy' in- I w' w 'Ward' closed end,'and j er endof the minor :axis of ithebore progressivel increasingfi'n thickriess ia thefs'me clirjetiohV pust a 'much greaterdboth saidl major and 'minorshelliwarls being of equal thiolnes's 'atftheo'pen'end of the Shell; whereby a pfier 'handljelmay' `'ce partial'ly inserted intos'aid' shelfb'o're and the' 'driven by'sharp hlowsfi'againstftlie cl'o'rsedfend'of'the, shel'l'ito a position'wth the handle; ``fully inserted 'while de' foriningl thejshel'l to conformz to' the Shape 'of'the handleltherehy securelyi'fastening the 'grip' there- 01'1 v v "REJFERENCES l(ri'rim I ,The'ifollqwirigj references'are of record-in 'the file of' 'this Pil ,tz
US64779A 1948-12-11 1948-12-11 Grip for pliers Expired - Lifetime US2520808A (en)

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941294A (en) * 1958-06-18 1960-06-21 Peter S Vosbikian Handles for manual tools with means to interlock with the shank of a working tool
US2951259A (en) * 1957-03-22 1960-09-06 Brockner David Elwood Insulated gripping device for tools
US3207124A (en) * 1963-07-08 1965-09-21 Schulmerich Electronics Inc Bells
US3711950A (en) * 1970-04-13 1973-01-23 Wiss J And Sons Co Removable handles for shears or the like
US3833953A (en) * 1973-12-21 1974-09-10 Illinois Tool Works Dielectric tool
US4197611A (en) * 1978-09-14 1980-04-15 Lincoln Manufacturing Company, Inc. Hand grip for cooking utensil handle
DE2839705A1 (en) * 1978-09-13 1980-05-14 Leifheit International Tool such as tin opener or garlic press - has levers received in and locked in handle portions and carrying cooperating tools at opposite end to handles
US4282783A (en) * 1980-02-11 1981-08-11 Fortune William S Handles for pliers
US4283808A (en) * 1979-09-17 1981-08-18 Beebe Lee M Gripping device for tooth brushes
US4382562A (en) * 1980-12-22 1983-05-10 Brunswick Corporation Finger brake for a spinning reel and method of assembling same
EP0621819A1 (en) * 1992-11-12 1994-11-02 The Triangle Tool Group, Inc. Ergonomic handle construction for hand-held tools
USD383047S (en) * 1995-01-18 1997-09-02 Panduit Corp. Set of handles for a crimping tool
US5740586A (en) * 1994-01-11 1998-04-21 Facom Tool handle
US5749792A (en) * 1996-08-30 1998-05-12 Engfer; Jeffrey R. Golf club handle oversize grip kit
US5867867A (en) * 1996-05-01 1999-02-09 The Vollrath Company, Inc. Pan handle hand grip
US5893375A (en) * 1996-07-19 1999-04-13 Majors; Timothy R. Thumb tab replacement sleeve in combination with a hair styling appliance
USD420886S (en) * 1999-03-10 2000-02-22 The Hilsinger Company Lp Pair of tool handles
US6131244A (en) * 1999-07-16 2000-10-17 Meritool Corp. Adjustable handle cover
US6270134B1 (en) * 2000-08-23 2001-08-07 Huey-Yea Lin Dual layered hand grip coverings and links for hand tool
US6520188B1 (en) * 2000-04-12 2003-02-18 Tina Q. Carter-Williams Method and kit for personalizing a hair styling tool
US20050263544A1 (en) * 2004-05-28 2005-12-01 Chang Peter J Caulk dispensing device with sure-grips
US20060213033A1 (en) * 2005-03-25 2006-09-28 The Vollrath Company, L.L.C. Handle
US20060225231A1 (en) * 2005-04-12 2006-10-12 Colgate-Palmolive Company Oral care implement and method of decorating
US20060237470A1 (en) * 2005-04-25 2006-10-26 Zanner Kurt H Cookware handle holder
US20070138191A1 (en) * 2005-03-25 2007-06-21 The Vollrath Company, L.L.C. Removable grip for handle
US20080109998A1 (en) * 2006-11-10 2008-05-15 Richard John Harold Graff Safety handles for industrial cutting equipment
US20140224083A1 (en) * 2013-02-08 2014-08-14 Nikhil Gupta Gel Handle Pliers for Beading
US20150240519A1 (en) * 2014-02-21 2015-08-27 Illinois Tool Works Inc. Tool for Use in the Fencing Industry or Like
USD849500S1 (en) 2013-02-08 2019-05-28 Nikhil Gupta Handles for beading pliers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US404667A (en) * 1889-06-04 And thomas v
US442155A (en) * 1890-12-09 Insulating-covering for pinch er-han dles
US444035A (en) * 1891-01-06 Pliers
US1330791A (en) * 1915-04-10 1920-02-17 John J Voorhees Jr Method of producing grips for tool-handles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US404667A (en) * 1889-06-04 And thomas v
US442155A (en) * 1890-12-09 Insulating-covering for pinch er-han dles
US444035A (en) * 1891-01-06 Pliers
US1330791A (en) * 1915-04-10 1920-02-17 John J Voorhees Jr Method of producing grips for tool-handles

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951259A (en) * 1957-03-22 1960-09-06 Brockner David Elwood Insulated gripping device for tools
US2941294A (en) * 1958-06-18 1960-06-21 Peter S Vosbikian Handles for manual tools with means to interlock with the shank of a working tool
US3207124A (en) * 1963-07-08 1965-09-21 Schulmerich Electronics Inc Bells
US3711950A (en) * 1970-04-13 1973-01-23 Wiss J And Sons Co Removable handles for shears or the like
US3833953A (en) * 1973-12-21 1974-09-10 Illinois Tool Works Dielectric tool
DE2839705A1 (en) * 1978-09-13 1980-05-14 Leifheit International Tool such as tin opener or garlic press - has levers received in and locked in handle portions and carrying cooperating tools at opposite end to handles
US4197611A (en) * 1978-09-14 1980-04-15 Lincoln Manufacturing Company, Inc. Hand grip for cooking utensil handle
US4283808A (en) * 1979-09-17 1981-08-18 Beebe Lee M Gripping device for tooth brushes
US4282783A (en) * 1980-02-11 1981-08-11 Fortune William S Handles for pliers
US4382562A (en) * 1980-12-22 1983-05-10 Brunswick Corporation Finger brake for a spinning reel and method of assembling same
EP0621819A1 (en) * 1992-11-12 1994-11-02 The Triangle Tool Group, Inc. Ergonomic handle construction for hand-held tools
EP0621819A4 (en) * 1992-11-12 1995-04-26 Triangle Tool Group Inc Ergonomic handle construction for hand-held tools.
US5740586A (en) * 1994-01-11 1998-04-21 Facom Tool handle
USD383047S (en) * 1995-01-18 1997-09-02 Panduit Corp. Set of handles for a crimping tool
US5867867A (en) * 1996-05-01 1999-02-09 The Vollrath Company, Inc. Pan handle hand grip
US5893375A (en) * 1996-07-19 1999-04-13 Majors; Timothy R. Thumb tab replacement sleeve in combination with a hair styling appliance
US5749792A (en) * 1996-08-30 1998-05-12 Engfer; Jeffrey R. Golf club handle oversize grip kit
USD420886S (en) * 1999-03-10 2000-02-22 The Hilsinger Company Lp Pair of tool handles
US6131244A (en) * 1999-07-16 2000-10-17 Meritool Corp. Adjustable handle cover
US6520188B1 (en) * 2000-04-12 2003-02-18 Tina Q. Carter-Williams Method and kit for personalizing a hair styling tool
US6270134B1 (en) * 2000-08-23 2001-08-07 Huey-Yea Lin Dual layered hand grip coverings and links for hand tool
US20050263544A1 (en) * 2004-05-28 2005-12-01 Chang Peter J Caulk dispensing device with sure-grips
US7398899B2 (en) * 2004-05-28 2008-07-15 Chang Peter J Caulk dispensing device with sure-grips
US20060213033A1 (en) * 2005-03-25 2006-09-28 The Vollrath Company, L.L.C. Handle
US20070138191A1 (en) * 2005-03-25 2007-06-21 The Vollrath Company, L.L.C. Removable grip for handle
US7490732B2 (en) 2005-03-25 2009-02-17 The Vollrath Company, L.L.C. Handle
US7941924B2 (en) 2005-04-12 2011-05-17 Colgate-Palmolive Company Oral care implement and method of decorating
US20060225231A1 (en) * 2005-04-12 2006-10-12 Colgate-Palmolive Company Oral care implement and method of decorating
US7600285B2 (en) 2005-04-12 2009-10-13 Colgate-Palmolive Company Oral care implement and method of decorating
US20060237470A1 (en) * 2005-04-25 2006-10-26 Zanner Kurt H Cookware handle holder
US20080109998A1 (en) * 2006-11-10 2008-05-15 Richard John Harold Graff Safety handles for industrial cutting equipment
US20140224083A1 (en) * 2013-02-08 2014-08-14 Nikhil Gupta Gel Handle Pliers for Beading
USD849500S1 (en) 2013-02-08 2019-05-28 Nikhil Gupta Handles for beading pliers
US20150240519A1 (en) * 2014-02-21 2015-08-27 Illinois Tool Works Inc. Tool for Use in the Fencing Industry or Like
US10385585B2 (en) * 2014-02-21 2019-08-20 Illinois Tool Works Inc. Tool for use in the fencing industry or like

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