Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1508456 A
Publication typeGrant
Publication dateSep 16, 1924
Filing dateJan 4, 1924
Priority dateJan 4, 1924
Publication numberUS 1508456 A, US 1508456A, US-A-1508456, US1508456 A, US1508456A
InventorsLenz William G
Original AssigneePerfection Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ground clamp
US 1508456 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

Lamgg,

Sept. 16 mm.

W. G. LENZ GROUND CLAMP Filed Jan. 4, 1924 Patented Sept; l6, l d. I E99 l d V m G. LMZ, F BROOKLYN, NEW YORK, ASSIGNOR TO PERFECTION MFG. 00.,

0F BROOKLYN, NEW YOPL s; A COPABTNEBSHIP.

GROUND CLAMP.

Application filed January a, 19%. Serial No. 684,835.

To all whom it'may concern: posite ends formed with eyelets 7 one. of Be it known that 1, WILLIAM G. Lnuz, a which is permanently secured to a clip 8 by citizen of the United States, and a resident means of a tongue 9 struck from the same,

of the borough of Brooklyn, city of New whereas the other eyelet is adapted to be York, county of Queens, and State of New det-achably connected to the clip 8 by means 60 York, have invented certain new and useful of a similar tongue 10. The clip 8 is preflmprovements in Ground Clamps, of which erably constructed from brass having more the following is a specification. or less resilienc and is provided, at one This invention relates to ground clamps end thereof, wi a spring arm- 11 which is such as are particularly adapted to be used cut away as shown most clearly in Figure as as a means for grounding radio receiving 2 to provide an opening 12 into which is instruments although not restricted to this adapted to project a ii-shaped .finger 13 particular adaptation. struck from the bod of the clip 8. The

An important object of my invention is spring arm 11 and nger 13 cooperate as 15 to provide a device of the character menwill be readily appreciated as a means for 70 tioned which may be readily attached to retaining an electric conductor 14: confined a grounded element such as a water-pipe or therebetween, which conductor is adapted the like and is so constructed as to conform to be connected'to the ground terminal of a to any irregularities of the grounded eleradio receiving or other electrical instrument and so ield upon expansion and con- 'ment not shown. In attaching the device 75 traction of e same as to enable the de-. embodying my invention to the grounded vice to function efliciently under all conelement such as a water-pipe, the spring 7 ditions. is stretched more or less and placed under A ther object of the invention is to tension whereupon the detachable eyelet 7 provide a device of the character mentioned is hooked over, the finger 10. By reason of 80 which may be maintained in intimate enthe fac that h pring 7 is n ine gagement with the grounded element at a under tension when the eyelet 7' is connectmu tiplicity of points whereby an efiective e to the finger, 10, the device as a whole electrical connection is insured throughout is firmly clamped in osition upon the relatively large contact areas between the grounded element and t e several contact grounded element and grounding device points 15 of the spring 7 are urged into and under all conditions. held in intimate engagment with the Further objects and coin advantages ounded element 5 thus insuring an efoi the invention will become apparent from cient electrical connection between the the following description when taken in groamded element and the device. This no connection with the accompanying drawintimate contact between the spring 7 and ings in whichgrounded element 5 is maintained under all Figure 1 is a transverse sectional view conditions incident to expansion and conof a grounded element such as a watertraction of the grounded element 5 due to pipe to which the device embodying my inthe fact that the spring 7 when attached on vention is shown. as attached. is adapted to correspondingly yield upon Figure 2 is a fra entary view in elevaexpansion of the grounded element or pipe tion of a ground element to which the 5 whereas on the other hand if the pipe condevice embodying my invention is shown "tracts the spring 7 due to its being under in elevation as attached thereto. tension likewise contracts thus maintaining ice in the drawings wherein for the purpose an eficicnt electrical connection. Furtherof illustration is shown what I at present more, by reason of the fact that the spring consider the preferred form of my inven- 7 is more or less flexible device embodytion the numeral 5 indiwtes a water-pi e in my invention may be ap lied with equalv or other electrical conductor adapted to he e eetiveness to grounded e ements having 105 electrically connected with the earth and to cross sectional shapes other than that of the which is adapted to he applied the device pipe 5 disclosed herein for the reason that embodyin my invention and indicated as the sgring 7 will readily lend itself or shape a whole y the neral 6. This device itsel tooontorm to the shape of the groundcomprises a spring 7 its oped element. The surface of the grounded are element in addition to being of an irregular Shaw may be pitted'or otherwise defaced without detracting from the eficiency of the elements the spring 7 instead of being at-' tached at its end to the finger 10 may be hooked over this finger at one of the contact points 15 in which case the eflective length of the spring 7 may be changed without altering or modifying the device in order to effect application of the same to a suitable grounded element having arelatively short diameter or small cross sectional area.

While it have shown and described what l at present consider the preferred form of my invention it is to be understood thatvarious changes in the size, shape and pro-portion of elements may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

I claim:

1. A ground clamp adapted to be attached to a grounded element comprising a spring adapted to encircle and contact with said grounded element, and a conductor clip adapted to be attached to opposite ends of said spring and held in engagement with neonate said grounded element under the influence of said sprin 2. A groun clamp adapted to be attached to a grounded element comprisi a spring taching a conductor thereto,

.3. A ground clamp adapted to be attached to a grounded element comprising a spiral sprlng adapted to encircle said grounded element and contact therewith, a'conductor clip, means at one end of said spring for permanently attaching said clip to said spring, and means at the opposite end of said spring for detachably clip to said spring.

i. A ground clamp adapted to be attached to a grounded element comprising a spiral spring adapted to encircle said'grounded element and contact therewith a conductor clip, means at one end of said spring for pern'ianently attaching said cli to said spring, means at the opposite end 0 said spring tor detachably connecting said clip tn said spring, and means for connecting a conductor to said clip.

In testimony whereof, l have aifixed my signature to this specification.

WILLIAM G. LENZ.

connecting said adapted to encircle and contact with said 7 tit)

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2855577 *Apr 2, 1954Oct 7, 1958Thomas Flower ArchibaldElectrical connector
US6261437Nov 4, 1997Jul 17, 2001Asea Brown Boveri AbDevice comprising holder configured to support and hold metallic conductor wire at contact points in predetermined position during anodizing, including cam guides each having guide slots, said wire being spirally wound in guide slots
US6279850Nov 4, 1997Aug 28, 2001Abb AbCable forerunner
US6357688Feb 2, 1998Mar 19, 2002Abb AbCoiling device
US6369470Nov 4, 1997Apr 9, 2002Abb AbAxial cooling of a rotor
US6376775May 27, 1997Apr 23, 2002Abb AbConductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6396187Nov 4, 1997May 28, 2002Asea Brown Boveri AbLaminated magnetic core for electric machines
US6417456May 27, 1997Jul 9, 2002Abb AbInsulated conductor for high-voltage windings and a method of manufacturing the same
US6429563Feb 2, 1998Aug 6, 2002Abb AbMounting device for rotating electric machines
US6439497Feb 2, 1998Aug 27, 2002Abb AbMethod and device for mounting a winding
US6465979Feb 2, 1998Oct 15, 2002Abb AbSeries compensation of electric alternating current machines
US6525504Feb 23, 2000Feb 25, 2003Abb AbMethod and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6646363Feb 2, 1998Nov 11, 2003Abb AbRotating electric machine with coil supports
US6801421Sep 29, 1998Oct 5, 2004Abb AbSwitchable flux control for high power static electromagnetic devices
US6822363May 27, 1997Nov 23, 2004Abb AbElectromagnetic device
US6825585Feb 2, 1998Nov 30, 2004Abb AbEnd plate
US6831388May 27, 1997Dec 14, 2004Abb AbSynchronous compensator plant
US6873080Sep 29, 1998Mar 29, 2005Abb AbSynchronous compensator plant
US6885273Feb 14, 2002Apr 26, 2005Abb AbInduction devices with distributed air gaps
US6891303May 27, 1997May 10, 2005Abb AbHigh voltage AC machine winding with grounded neutral circuit
US6894416May 27, 1997May 17, 2005Abb AbHydro-generator plant
US6906447May 27, 1997Jun 14, 2005Abb AbRotating asynchronous converter and a generator device
US6919664May 27, 1997Jul 19, 2005Abb AbHigh voltage plants with electric motors
US6936947May 27, 1997Aug 30, 2005Abb AbTurbo generator plant with a high voltage electric generator
US6940380May 27, 1997Sep 6, 2005Abb AbTransformer/reactor
US6970063Feb 2, 1998Nov 29, 2005Abb AbPower transformer/inductor
US6972505May 27, 1997Dec 6, 2005AbbRotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same
US6995646Feb 2, 1998Feb 7, 2006Abb AbTransformer with voltage regulating means
US7019429Nov 27, 1998Mar 28, 2006Asea Brown Boveri AbMethod of applying a tube member in a stator slot in a rotating electrical machine
US7045704Apr 19, 2001May 16, 2006Abb AbStationary induction machine and a cable therefor
US7046492Dec 20, 2004May 16, 2006Abb AbPower transformer/inductor
US7061133Nov 30, 1998Jun 13, 2006Abb AbWind power plant
US7141908Mar 1, 2001Nov 28, 2006Abb AbRotating electrical machine
DE1208376B *Apr 5, 1962Jan 5, 1966Elpag Elektro Praez S A GErdungsklemme fuer elektrische Rohrheizkoerper
DE29514144U1 *Sep 4, 1995Oct 19, 1995Alcatel Kabel AgKlemmverbindung zum Anschluß eines elektrischen Leiters an den Schirm und/oder den Metallmantel eines elektrischen Kabels
WO1999029018A1 *Nov 30, 1998Jun 10, 1999Asea Brown BoveriInsulated electrical conductor
Classifications
U.S. Classification439/799, 439/828
International ClassificationH01R4/58, H01R4/64, H01R4/48, H01R4/60
Cooperative ClassificationH01R4/4863, H01R4/60, H01R4/643
European ClassificationH01R4/60, H01R4/64B, H01R4/48H2