US3891296A - Teeter terminal clamp - Google Patents

Teeter terminal clamp Download PDF

Info

Publication number
US3891296A
US3891296A US404805A US40480573A US3891296A US 3891296 A US3891296 A US 3891296A US 404805 A US404805 A US 404805A US 40480573 A US40480573 A US 40480573A US 3891296 A US3891296 A US 3891296A
Authority
US
United States
Prior art keywords
head
section
plate
shank
frustoconical
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
US404805A
Other languages
English (en)
Inventor
Charles E Gutshall
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.)
Elco Industries Inc
Original Assignee
Elco Industries Inc
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 Elco Industries Inc filed Critical Elco Industries Inc
Priority to US404805A priority Critical patent/US3891296A/en
Priority to GB4798973A priority patent/GB1403166A/en
Priority to CA187,606A priority patent/CA993075A/en
Priority to AU64632/74A priority patent/AU6463274A/en
Priority to DE2415344A priority patent/DE2415344A1/de
Priority to JP11065874A priority patent/JPS5425627B2/ja
Application granted granted Critical
Publication of US3891296A publication Critical patent/US3891296A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Definitions

  • Some of the prior art terminal clamps have been specifically designed to have the versatility of accommodating a plurality of electrical wires having different diameters but approximately equal clamping loads.
  • Various approaches include, for example, clamping plates which teeter or rock relative to the shank axis. To permit such teetering, the aperture in the plate may be oversized or, at least, elongated in a direction generally perpendicular to the axis of the wires being accommodated.
  • Some of the prior art patents relating to terminal clamps for accommodating wires of different size include, for example, U.S. Pat.
  • Another problem which the prior art has attempted to solve is the inconvenience and cost of assembling the clamping devices on the threaded fasteners at the job site, particularly when the terminal clamps are very small in size and require a high degree of finger dexterity to install.
  • a related problem arises when removing or unclamping the tenninal clamp to temporarily release, remove or replace the wires. The clamping plate may fall off the shank or even stick or otherwise remain attached to the wires which were clamped thereby.
  • terminal clamps have been fabricated with retaining shoulders or rings integrally formed on the shank itself. These retain the clamping plates on the shank so that the electrician has a preassembled device available for use. In addition, the shoulder positively lifts the plates from the wires as the shank is unthreaded.
  • Prior art devices employing shoulders on the threaded shanks, although not necessarily for retaining terminal clamps, include, for example, U.S. Pat. Nos. 2,192,322, 3,141,722, 3,205,473,
  • Prior art teeter terminal clamps have suffered from one or more shortcomings. For example, some have been unduly complex, comprise a number of parts, are difficult to assemble or use or are quite costly to manufacture. Some have to be assembled on the job or require a nimble-fingered person to apply. Some are structurally weakened by virtue of the particular configuration required for the clamping function.
  • the captured peak-type terminal clamp wherein the threads or retaining collar are rolled on or otherwise added to the shank after assembly of the plate thereon, also have the additional disadvantage of an undesirably large space or gap along the.
  • a teeter terminal clamp comprising a threaded shank having a head configured to receive a tool for rotating the shank and an apertured clamping plate loosely and teeterably assembled and retained on the shank adjacent the head.
  • the head has an underhead surface with an integral frustoconical section extending outwardly from the underhead surface concentric with the shank axis and intermediate the inner and outer extremities of the underhead surface.
  • this frustoconical section may take the form of a downwarddepending substantially V-shaped embossment or protrusion.
  • the clamping plate which is preferably generally rectilinear, has on the side adjacent the head a generally-annular, preferably discontinuous, inner section, a marginal outer section axially displaced from the head and radially displaced from the shank relative to the inner section, and a generally-frustoconical, preferably discontinuous, connecting section joining the inner and outer sections and complementary to the frustoconical section on the underhead surface but of larger diameter or larger major or minor axes.
  • the two frustoconical sections are coordinated so that the extremity of the underhead section registers with an intermediate portion of the connecting section when the two are in registration, that is, when they are aligned and in contact.
  • the inner and connecting sections of the plate tend to blend into each other as a single configuration.
  • the clamping plate has a generally complementary configuration, including inner, outer and connecting surfaces, and features a plurality of spaced ribs extending radially from the connecting sur face towards the shank of the fastener so as to delimit the aperture. This allows the upper portion of the aperture to be flared outwardly for enhanced teeterability and wider clearances between the shank and the frustoconical section of the head, thus minimizing die breakage problems when heading the blank.
  • the other side of the clamping plate also has wire-engaging, anti-slip surface irregularities, such as grooves or embossments,
  • the clamping plate is retained on the threaded shank adjacent the head by an integrally-formed annular collar. At least the lower surface of the collar may be serrated so as to provide a torque-robbing character to the assembly to assure clutch out of the drive tool prior to strip out.
  • FIG. 1 is a fragmentary elevation view, partly in section, showing on a magnified scale a preferred embodiment of the teeter terminal clamp of the present invention prior to threading it into a workpiece for clamping purposes;
  • FIG. 2 is similar to FIG. 1 except that it shows the teeter terminal clamp after being threaded into a workpiece for clamping two conductors of different diameters;
  • FIG. 3 is an elevation view, on a slightly reduced scale as compared with FIGS. 1 and 2, of the headed blank prior to assembling the clamping plate and rolling the threads and retaining collar thereon;
  • FIG. 4 is a bottom plan view of the blank shown in FIG. 3;
  • FIG. 5 is a perspective view on an enlarged scale of the clamping plate of the embodiment of the present invention shown in FIG. 1;
  • FIG. 6 is an overhead plan view of the clamping plate of FIG. 5;
  • FIG. 7 is a bottom planview of the plate of FIG. 6;
  • FIG. 8 is a sectional view along the line 8-8 of FIG. 6;
  • FIG. 9 is a sectional view along the line 9-9 of FIG. 6.
  • the teeter terminal clamp of the present invention comprises shank 10 having threads 12 along at least a portion of the length thereof and generally circular head 14 at the upper terminal end as viewed in FIG. 1.
  • Head 14 is slotted, as indicated by slot 16, to receive the blade of a screwdriver for rotation of the shank whereby the clamp may be tightened or loosened.
  • Clamping plate 18 is loosely and teeterably assembled on shank adjacent the undersurface of head 14 by means of retaining collar 22.
  • clamping plate 18 may be generally U-shaped, as suggested by the opposed appendages 23 shown in phantom lines in FIG. 1; or the plate may be retained on the shank by a nut threaded on the shank. 1
  • the undersurface 20 of head 14 and the contacting upper surface of clamping plate 18 are complementarily designed, as described in detail hereinafter, so as to clamp terminal ends of conductors having different diameters, such as electrical leads 24 and 26 which are being clamped to workpiece 28 in support structure 30. Despite the difference in diameters of leads 24 and 26, the clamping loads on these leads are substantially identical.
  • underhead surface 20 has .at least one, integrally-formed, substantially circular furstoconical section 32 flaring downwardly and outwardly from underhead 20 and concentric with the axis of shank 10 and intermediate the inner and outer extremities of underhead surface 20, that is, between the juncture of the shank with the underhead surface and the outer edge thereof.
  • the frustoconical section 32 comprises a V-shaped protrusion, although the outward portion could be solid as suggested by phantom line 32.
  • this frustoconical section registers with a generallyfrustoconical section on the upper surface of clamping plate 18 whereby the geometry is such that the clamping plate self-adjusts or tilts to accommodate a single conductor lead or conductor leads of different diameters as portrayed in FIG. 2.
  • the clamp also will accommodate two leads having the same diameter.
  • clamping plate 18 comprises a generally-annular, discontinuous inner section 36 with discontinuous aperture wall 38, a marginal outer section 40, which is displaced axially from the head and radially from the shank in the completed assembly, and a generally-frustoconical, discontinuous connecting section 42 which joins inner section 36 and outer section 40, the discontinuities in the inner and connecting sections being equally spaced and in registration.
  • connecting section 42 accommodates and complements the frustoconical section 32 on the undersurface 20 of head 14.
  • inner section 36 and connecting section 38 blend into each other and in a sense can be considered an integral frustoconical protrusion complementarily accommodating the frustoconical section 32 on the undersurface 20 of head 14 in teetering relationship.
  • the aperture in plate 18 defined by inner wall 44, as well as discontinuous wall 38, may be circular or oblong with major and minor axes or otherwise slightly squared off. It is oversized relative to the shank diameter so that plate 18 can teeter, rock or tilt relative to the shank, and thus accommodate wires of different diameters.
  • Discontinuous inner surface 38 of inner section 36 flares radially outwardly towards head 14 so as to enhance such teeterability and at the same time permit a larger diameter for frustoconical connecting section 42. This in turn permits the complementary frustoconical section 32 on the undersurface 20 of head 14 to be displaced farther from the shank. As those skilled in the metal forming arts will recognize, this larger displacement minimizes die breakage problems when heading blanks by conventional techniques.
  • the lower surface of clamping plate 18 is generally complementary to the upper surface and thus has an inner surface 49, outer surface 50 and connecting surface 51.
  • the transitioning depression 50' results from the metal forming operation.
  • the lower surface also features wire-engaging, antislip surface irregularities or embossments 52, 54, 56, 58, 60, 62, 64 and 66 thereon; which frictionally grip or otherwise imbed themselves into the wires to be clamped, thereby preventing the wires from being pulled out or shaken loose accidentally.
  • wire gripping embossments 52-66 are disposed perpendicular to the sides of the clamping plate so that in the normal clamping operation at least one and normally two embossments are at right angles to the axes of the leads being clamped. This disposition maximizes the anti-pullout characteristic.
  • the embossments 52, 54, 56, 58, 60, 62, 64 and'66 are formed by stamping or otherwise forming complementary grooves 68, 70, 72, 74, 76, 78, and 82 on the upper surface 40 of plate 18.
  • the upper comer portions 84, 86, 88 and 90 of plate 18 are stamped or otherwise formed so as to direct the corners downwardly producing downward extremities 92, 94, 96 and 98, respectively.
  • Annular collar 22 preferably has a series of serrations 100 on the surface towards the workpiece.
  • Such serrations may be of any appropriate form for sharply increasing the torque required to rotate the head 14 and shank 10 when the serrations engage the workpiece 28.
  • the serrations 100 in the preferred embodiment include a plurality of teeth inclined upwardly and outwardly of the shank l0 and of generally symmetrical form. As those skilled in the art will recognize, these will absorb a portion of the driving torque during the last stage of tightening whereby the driving too] can be set to assure clutch out before the threaded fastener is stripped out of the workpiece; such action is referred to herein as torquerobbing.
  • ribs 102, 104, 106 and 108 are formed on the complementary undersurfaces of plate 18. These ribs, in effect, define or delimit the aperture in the plate. In practice, they are formed, at least in part, from the metal displaced from the discontinuities in the inner and connecting sections of the upper surface.
  • ribs 102-108 In addition to acting as the contacting surfaces for annular collar 22 when unscrewing the clamp, ribs 102-108 also enhance the anti-pullout characteristics of the clamp. Moreover, the ribbing effect on the plate resulting from the formation of the ribs strengthens the plate whereby the plate thickness can be reduced as much as 20 percent without sacrifice of strength.
  • An improved teeter terminal clamp is fabricated substantially in accordance with the embodimentof FIGS. 1-9, employing for the threaded fastener No. 1022 low carbon steel, heat treated to a Rockwell Hardness (C- scale) of about 30-40, and for the plate No. 1050 medium carbon steel, heat treated to a Rockwell Hardness (C-scale) of about 44-48.
  • the screw size is No. with 32 threads per inch and a shank length of about /2 inch; and the plate is approximately a 7/16 inch square.
  • the design of the present invention is also superior to other prior art designs in pullout loading, resistance to wire shaving, or the like.
  • a teeter terminal clamp for removably securing the terminal portion of at least one conductor comprising in combination:
  • a threaded shank having a head at one extremity and an entering end portion at the other extremity, said head being configured to cooperate with a tool whereby the shank may be rotated into or out of a threaded aperture, said head having an underhead surface with at least one, integral frustoconical section extending outwardly from said underhead surface concentric with the shank axis and between the inner and outer extremities of the underhead surface;
  • a clamping plate apertured to loosely and teeterably receive said shank, said plate having on the side adjacent said head agenerally-annular inner section with inner surface flaring radially outwardly towards said head, a marginal outer section axially displaced from the head and radially displaced from the shank relative to said inner section, and a generally-frustoconical connecting section joining said inner and outer sections, said connecting section accommodating said frustoconical section on the undersurface of said head whereby the extremity of said frustoconical section on the undersurface of said head registers with an intermediate portion of said connecting section when said frustoconical section on the undersurface of said head and said connecting section are aligned and in contact, said plate also having on the other side generally complementary inner, outer and connecting surfaces and including a plurality of spaced ribs extending radially from said connecting surface to the central aperture of said clamping plate so as to define the inner limits of the central aperture in said plate; said plate also having conductorengaging,
  • clamping plate is substantially rectilinear and said conductorengaging, anti-slip surface irregularities comprise intersecting embossments spacedly adjacent each of the four corners of the clamping plate substantially perpendicular to the sides thereof, outer comer portions intermediate said embossments being inclined away from said head.
  • said means for retaining said plate comprises an integrally-formed annular collar spaced from said head sufficiently to accommodate said clamping plate in loose relationship prior to tightening and of sufficient outer diameter to engage said spaced ribs when said plate is in contact with said annular collar.
  • a teeter terminal clamp for removably securing the terminal portion of at least one conductor comprising on combination:
  • a threaded shank having a head at one extremity and an entering end portion at the other extremity, said head being configured to cooperate with a tool whereby the shank may be rotated into or out of a threaded aperture, said head having an underhead surface with at least one, integral frustoconical section extending outwardly from said underhead surface concentric with the shank axis and intermediate the inner and outer extremities of the underhead surface;
  • a substantially-rectilinear clamping plate centrally apertured to loosely and teeterably receive said shank, said plate having on the side adjacent said head a generally annular, spacedly-discontinuous inner section with inner surface flaring radially outwardly towards said head, a marginal outer section axially displaced from the head and radially displaced fron the shank relative to said inner section, and a generally frustoconical, spacedlydiscontinuous intermediate section joining said inner and said outer sections, said intermediate section accommodating said frustoconical section on the undersurface of said head whereby the extremity of said frustoconical section on the undersurface of said head registers with an intermediate portion of said intermediate section when said frustoconical section on the undersurface of said head and said intermediate section are aligned, said plate also having on the other side generally complementary inner, outer and intermediate surfaces and including a plurality of equally-spaced ribs extending radially from said intermediate surface to the central aperture in said plate so as to
  • means for retaining said plate on said shank spacedly adjacent said head comprising an integrallyformed annular collar spaced from said head sufficiently to accommodate said clamping plate in loose relationship prior to tightening and having an outer diameter to engage said spaced ribs and prevent passage thereover.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
  • Clamps And Clips (AREA)
US404805A 1973-10-09 1973-10-09 Teeter terminal clamp Expired - Lifetime US3891296A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US404805A US3891296A (en) 1973-10-09 1973-10-09 Teeter terminal clamp
GB4798973A GB1403166A (en) 1973-10-09 1973-10-15 Teeter terminal clamp
CA187,606A CA993075A (en) 1973-10-09 1973-12-06 Teeter terminal clamp
AU64632/74A AU6463274A (en) 1973-10-09 1974-01-17 Teeter terminal clamp
DE2415344A DE2415344A1 (de) 1973-10-09 1974-03-29 Spannvorrichtung fuer die anschlussenden elektrischer leiter
JP11065874A JPS5425627B2 (enrdf_load_stackoverflow) 1973-10-09 1974-09-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404805A US3891296A (en) 1973-10-09 1973-10-09 Teeter terminal clamp

Publications (1)

Publication Number Publication Date
US3891296A true US3891296A (en) 1975-06-24

Family

ID=23601118

Family Applications (1)

Application Number Title Priority Date Filing Date
US404805A Expired - Lifetime US3891296A (en) 1973-10-09 1973-10-09 Teeter terminal clamp

Country Status (6)

Country Link
US (1) US3891296A (enrdf_load_stackoverflow)
JP (1) JPS5425627B2 (enrdf_load_stackoverflow)
AU (1) AU6463274A (enrdf_load_stackoverflow)
CA (1) CA993075A (enrdf_load_stackoverflow)
DE (1) DE2415344A1 (enrdf_load_stackoverflow)
GB (1) GB1403166A (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993397A (en) * 1975-07-31 1976-11-23 Gutshall Charles E Tilting terminal clamp assembly
JPS534144A (en) * 1976-06-30 1978-01-14 Matsushita Electric Works Ltd Lashing wire-loaded terminal screw
US4097112A (en) * 1976-09-02 1978-06-27 Howard S. Langdon Tilting terminal clamp assembly
US4135777A (en) * 1978-01-20 1979-01-23 Illinois Tool Works Inc. Tiltable terminal clamp assembly
FR2412179A1 (fr) * 1977-12-16 1979-07-13 Amerace Corp Bride ou serre-fils pour borne electrique
US4269464A (en) * 1979-07-30 1981-05-26 Howard S. Langdon Tilting terminal clamp
US4310214A (en) * 1980-03-21 1982-01-12 Carlson William R Tiltable terminal clamp assembly
US4492422A (en) * 1982-12-10 1985-01-08 Textron Inc. Wire clamp assembly
WO1995014864A1 (en) * 1993-11-22 1995-06-01 Swick E Grant Electrical connection terminal assembly and tilt washer
US6082942A (en) * 1993-11-22 2000-07-04 Swick; E. Grant Electrical connection terminal assembly and tilt washer
US20060284027A1 (en) * 2005-04-04 2006-12-21 Thomsa & Betts International, Inc. Anti-vibration locking device for pipe and cable clamps
US20080003893A1 (en) * 2004-10-15 2008-01-03 Gustav Klauke Gmbh Cable Lug Comprising a Nut or Functional Part, Method for the Production of Such a Cable Lug, and Nut
US20080206013A1 (en) * 2004-11-05 2008-08-28 Pem Management, Inc. Rotatable captivated nut
US20120246930A1 (en) * 2009-12-18 2012-10-04 Kevin Ernest Woolley Method and kit for the application of a permanent electrical contact to the web of rails and the like
US20150280334A1 (en) * 2014-03-28 2015-10-01 Sunrun South Llc Solar panel grounding lug assemblies and systems

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331290U (enrdf_load_stackoverflow) * 1976-08-24 1978-03-17
DE2933214A1 (de) * 1979-08-16 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Anschlussklemme fuer elektrische geraete
DE3149643C2 (de) * 1981-12-15 1986-07-03 Brown, Boveri & Cie Ag, 6800 Mannheim Druckscheibe für eine Klemmverbindung von elektrischen Leitern
FR2675639B1 (fr) * 1991-04-22 1995-05-12 Telemecanique Ensemble vis-etrier pour borne d'appareil electrique.
DE20204170U1 (de) 2002-03-18 2002-07-04 Schulte & Co. GmbH, 58675 Hemer Kabelschuh mit einer an dem Kabelschuh unverlierbar gehaltenen Befestigungsschraube

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619145A (en) * 1949-07-22 1952-11-25 Illinois Tool Works Coupled nut and lock washer
US3065442A (en) * 1959-05-27 1962-11-20 Hubbell Inc Harvey Wire terminal clamp for electric wiring devices
US3438417A (en) * 1967-01-20 1969-04-15 Eaton Yale & Towne Canting lock bolt
US3744012A (en) * 1972-04-06 1973-07-03 Elco Industries Inc Teeter terminal clamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619145A (en) * 1949-07-22 1952-11-25 Illinois Tool Works Coupled nut and lock washer
US3065442A (en) * 1959-05-27 1962-11-20 Hubbell Inc Harvey Wire terminal clamp for electric wiring devices
US3438417A (en) * 1967-01-20 1969-04-15 Eaton Yale & Towne Canting lock bolt
US3744012A (en) * 1972-04-06 1973-07-03 Elco Industries Inc Teeter terminal clamp

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993397A (en) * 1975-07-31 1976-11-23 Gutshall Charles E Tilting terminal clamp assembly
JPS534144A (en) * 1976-06-30 1978-01-14 Matsushita Electric Works Ltd Lashing wire-loaded terminal screw
US4097112A (en) * 1976-09-02 1978-06-27 Howard S. Langdon Tilting terminal clamp assembly
FR2412179A1 (fr) * 1977-12-16 1979-07-13 Amerace Corp Bride ou serre-fils pour borne electrique
US4174148A (en) * 1977-12-16 1979-11-13 Amerace Corporation Electrical terminal clamp assembly
US4135777A (en) * 1978-01-20 1979-01-23 Illinois Tool Works Inc. Tiltable terminal clamp assembly
US4269464A (en) * 1979-07-30 1981-05-26 Howard S. Langdon Tilting terminal clamp
US4310214A (en) * 1980-03-21 1982-01-12 Carlson William R Tiltable terminal clamp assembly
US4492422A (en) * 1982-12-10 1985-01-08 Textron Inc. Wire clamp assembly
US6082942A (en) * 1993-11-22 2000-07-04 Swick; E. Grant Electrical connection terminal assembly and tilt washer
US5658108A (en) * 1993-11-22 1997-08-19 Swick; E. Grant Electrical connection terminal assembly and tilt washer
WO1995014864A1 (en) * 1993-11-22 1995-06-01 Swick E Grant Electrical connection terminal assembly and tilt washer
CN1054474C (zh) * 1993-11-22 2000-07-12 格兰特·E·斯威克 电气接线组件和倾侧垫圈
US5470183A (en) * 1993-11-22 1995-11-28 Swick; E. Grant Electrical connection terminal assembly and tilt washer
US8777536B2 (en) 2004-10-15 2014-07-15 Gustav Klauke Gmbh Cable lug comprising a nut or functional part, method for the production of such a cable lug, and nut
US9735478B2 (en) 2004-10-15 2017-08-15 Gustav Klauke Gmbh Cable lug comprising a nut or functional part, method for the production of such a cable lug, and nut
US20080003893A1 (en) * 2004-10-15 2008-01-03 Gustav Klauke Gmbh Cable Lug Comprising a Nut or Functional Part, Method for the Production of Such a Cable Lug, and Nut
US20090162135A1 (en) * 2004-10-15 2009-06-25 Egbert Frenken Cable lug comprising a nut or functional part, method for the production of such a cable lug, and nut
US20080206013A1 (en) * 2004-11-05 2008-08-28 Pem Management, Inc. Rotatable captivated nut
US8021091B2 (en) 2004-11-05 2011-09-20 Pem Management, Inc. Rotatable captivated nut
US20060284027A1 (en) * 2005-04-04 2006-12-21 Thomsa & Betts International, Inc. Anti-vibration locking device for pipe and cable clamps
US20120246930A1 (en) * 2009-12-18 2012-10-04 Kevin Ernest Woolley Method and kit for the application of a permanent electrical contact to the web of rails and the like
US8851395B2 (en) * 2009-12-18 2014-10-07 Cembre Ltd. Method for the application of a permanent electrical contact to the web of rails
US20150280334A1 (en) * 2014-03-28 2015-10-01 Sunrun South Llc Solar panel grounding lug assemblies and systems
US9742350B2 (en) * 2014-03-28 2017-08-22 Sunrun South Llc Solar panel grounding lug assemblies and systems

Also Published As

Publication number Publication date
CA993075A (en) 1976-07-13
JPS5425627B2 (enrdf_load_stackoverflow) 1979-08-29
GB1403166A (en) 1975-08-13
DE2415344A1 (de) 1975-04-10
JPS5065894A (enrdf_load_stackoverflow) 1975-06-03
AU6463274A (en) 1975-07-17

Similar Documents

Publication Publication Date Title
US3891296A (en) Teeter terminal clamp
US4123132A (en) Screw or nut and a captive washer
US3744012A (en) Teeter terminal clamp
US9287637B2 (en) Split bolt electrical connector assembly
US4174148A (en) Electrical terminal clamp assembly
US4062613A (en) Connecting device
US3787948A (en) Wire nut wrench
US4146289A (en) Wire clamp assembly
US3177456A (en) Wire clamp assembly
US3993397A (en) Tilting terminal clamp assembly
US3047036A (en) Knurled bearing bolt
US4310214A (en) Tiltable terminal clamp assembly
US3431546A (en) Wire coiling and clamping fastener
US1994251A (en) Connecter
US3238495A (en) Electrical connector
US4492422A (en) Wire clamp assembly
US4135777A (en) Tiltable terminal clamp assembly
GB973334A (en) A screw and captive clamping washer assembly
US1928157A (en) Electric terminal connection
US4201111A (en) Sheet metal fastener and method of making
US3786398A (en) Terminal construction
US3178675A (en) Diagonal teeter terminal clamp
US5759072A (en) Clip-on lay-in connector
US5795195A (en) Electrical plug
KR102117071B1 (ko) 전선 접속장치