US2616646A - Twist-on bus-support clamp - Google Patents

Twist-on bus-support clamp Download PDF

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Publication number
US2616646A
US2616646A US67274A US6727448A US2616646A US 2616646 A US2616646 A US 2616646A US 67274 A US67274 A US 67274A US 6727448 A US6727448 A US 6727448A US 2616646 A US2616646 A US 2616646A
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United States
Prior art keywords
bus
clamp
clamping
clamping seat
spring
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Expired - Lifetime
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US67274A
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Matthysse Irving Frederick
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FCI USA LLC
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Burndy Engineering Co Inc
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Priority to US67274A priority Critical patent/US2616646A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing
    • F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/14—Supporting insulators
    • H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y10T24/3984—Alignable aperture and spring pressed moving element
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45969—Hook-shaped projection member passing through cavity

Definitions

  • My invention relates to 'a bus-Support clamp Sind more particularly to a clamp having spaceda'p'art extending lingers between which the busbar is positioned, before twisting the clamp onto the bus to secure the two together.
  • a high voltage bus line, frequently in the 'form oi' metal tubing is usually supported by bus support clamps bolted to porcelain insulators.
  • bus support clamps bolted to porcelain insulators.
  • the necessary bolts on the bus support clamps are removed with hot line tools before the insulator can be removed, which is both dangerous and diiiicult.
  • Still other objects, therefore, are to provide a movable clamping seat which engages the busbar when in open position and permits twisting the supporting clamp thereon, with the clamping seat in Contact with the bus-bar during the closing operation; to provide a clamping seat which is spring-biased to cause the bus-bar to be resiliently supported thereon against the extending iingers of the clamp, to provide a cam surface on the ngers of the clamp to permit the clamp to be cammed into position on the bus; and to provide an adjustable holding pin for the clamping seat which acts as the axis of rotation, controls the amount of resilient pressure applied to the clamping seat, and limits the vertical motion in the axis of rotation.
  • Fig. l is an end elevation view of device shown clamped to a bus.
  • Fig. 2 is a side elevation view thereof, a por- 2 'tion in Section 'to show details of 'th olaiplg Seat Ilillbe'r.
  • Fig. 3 is a plan view of 'my device.
  • the bus support clamp Ill is shown mounted by bolts II to a cap I2 of a standard insulator I3, having attaching bolts I4.
  • the clamp IIJ comprises a Oase member -I5 and oppostely positioned integral arms I6 having free ends I1 extending upwardly toward and beyond each other over the sus I8 which they support. Arms le are spaced apart 'a distance sufficient to permit 'the b'us to laterally pass between them during installation or removal.
  • a clamping member I9 having 'a semi-cylindrical clamping 'seat 20 for supporting the bus is pivotally mounted to the base I5 by means of a pin 2l.
  • the pin freely projects through the clamping member and is threadedly secured to the base.
  • centrally depressed area 22 in the 'clamping member receives 'the head of the pin 'and with the depending peripheral flange 23 forms a housing for one end of spring 24, which spring forces the clamping member to resiliently engagethe Ibus and prevent chattering.
  • the base I5 has a depressed area 25 threadedly apertured to receive thel end oi the pin and together with the peripheral flange 26 extending upwardly 'and within theperipheral ange 23, forms a housing for the other end of the spring.
  • 'Iflieo'v'eilapping flanges '23 and 26 function to limit the lateral movement of the clamping meinber and prevent a stress on the 'pin When there is a longitudinal movement of the bus, as Well as a limit stop to prevent excess compression of the 'Spr-
  • performs' three functions, namely as an fa'xis of rotation for ,the clamping member, 'seeond1y as a means for adjusting the pressure of the spring by screwing the pin the. desired amount and peening the threaded end at 21 or providing a retaining element, and thirdly, as a retaining means to limit the vertical movement of the clamping member.
  • Each arm I6 is provided with cam surfaces 28 and 29.
  • Cam 28 is positioned on the inner edge of free end Il to initially align the bus between the arms.
  • Cam 29 is positioned on the under side of the free end, extending in a smooth curve from a point tangential to the bus upwardly to the end and functions to convert the twisting torque around the vertical axis to a vertical force in the spring to enable the arms to be clamped over the bus.
  • the device is installed on the bus by grasping the assembly of clamp and insulator and aligning the arms parallel to the bus, the cams 2B assisting in the alignment, and then placing the bus between the arms to rest on the clamping seat member. Rotating the assembly approximately 90 degrees, forces the arms over the bus through cams 29, which compresses the spring and securely positions the clamp in position on the bus.
  • the clamping seat member is free to rotate with respect to the clamp, so that While the clamp is being rotated, the clamping seat member remains stationary with respect to the bus, which remains in the seat 29.
  • the attaching bolts Hl of the insulator are then secured.
  • the attaching bolts are removed and the assembly is rotated about the vertical axis through a 90 angle, where the arms are free and in a position parallel with the bus. It is to be noted that the clamping seat member has remained in a iixed position with respect to the bus, so that it is in a position to receive the bus when re-installed.
  • the pressure of the spring is adjustably controlled by the pin which when rotated compresses the spring to a point
  • distance A in Figure 2 which is made as small as possible, allowing for suffi,- cient travel and considering manufacturing tolerances and any deflection of the arms under the stresses that might be imposed.
  • the head of the pin restrains the clamping seat member from moving vertically under the action of the spring more than the distance A. In this manner, the minimum amount of eiort is required for installation and disassembly.
  • a bus support for clamping a conductor to a supporting structure which comprises a base member, means for mounting the base member to the supporting structure, a plurality of spaced arm members xedly mounted to said base member and each having a free end extending over and engaging the conductor, said free ends spaced from said fixed ends and spaced from adjacent arms respectively a distance greater than the diameter of the conductor to receive the conductor, adjacent free ends of the arm members disposed in opposite directions, a rotatable clamping seat member mounted to said base member independently of said arm members whereby the conductor may be supported on the clamping seat member between and parallel to said arm members and the bus support rotated so that the arms extend transversely of the conductor to secure the conductor between the arm members and the clamping seat member.
  • a bus support for clamping a conductor to a supporting structure which comprises a base member, means for mounting the base member to the supporting structure, a plurality of spaced arm members mounted to said base member and each having a free end extending over and engaging the conductor, an adjustable grooved clamping seatv member spring-mounted to said base member and positioned intermediate the spaced-apart arm members, whereby the conductor may be resiliently supported on the clamping seat member, and the clamping seat member adjusted to secure the conductor between the arm members and the clamping seat member.
  • clamping seat member is secured to the base member by a centrally-positioned pin about which it is free to rotate, and a spring is positioned between the clamping seat member and the base.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Description

d, 5 6 R. 4 om@ 6, wn? 6 WQ l. NM e, Ik P e d m WW Y w M M a .WB E m o40 2 r S T 9 my 7. S R l Y O 1 l H W N 7 w 2|. T w 7 T S o 1 D,\ A U e f l M B D F wm .l mm au oO M 1 2 6 T i O 1 Nov. 4, 1952 Patented Nov. 4, 1952 UNITED STATES PATENT OFFICE TWIST-N BUS-SUPPORT CLAMP Irving Frederick Matthysse, New York, N. Y., as-
signor to Burndy Engineering Company, Inc., a corporation of New York Application December 27, 1943, Serial n. 65,274
(Cl. '24S-65) 3 Claims. l
My invention relates to 'a bus-Support clamp sind more particularly to a clamp having spaceda'p'art extending lingers between which the busbar is positioned, before twisting the clamp onto the bus to secure the two together.
A high voltage bus line, frequently in the 'form oi' metal tubing is usually supported by bus support clamps bolted to porcelain insulators. The occasion frequently arises when such insulators must be removed for cleaning or renewal and it is not feasible to de-energiz'e the bus line for this purpose. Ordinarily 1n these instances, the necessary bolts on the bus support clamps are removed with hot line tools before the insulator can be removed, which is both dangerous and diiiicult.
Therefore it is the primary object of my invention to provide a bus support clamp which may be readily removed from an energized bus and replaced without the necessity of hot-line tools and without danger' to personnel or equipment.
Since high voltage bus lines are subjected to temperature changes, it is necessary that the 'supporting clamps permit variations in dimensions during use. Therefore it is a further object of my invention to provide a clamp that will permit longitudinal motion of the bus line and 'yet grip the bus with suflioient force to prevent chattering or vibrations causing radio interference.
Still other objects, therefore, are to provide a movable clamping seat which engages the busbar when in open position and permits twisting the supporting clamp thereon, with the clamping seat in Contact with the bus-bar during the closing operation; to provide a clamping seat which is spring-biased to cause the bus-bar to be resiliently supported thereon against the extending iingers of the clamp, to provide a cam surface on the ngers of the clamp to permit the clamp to be cammed into position on the bus; and to provide an adjustable holding pin for the clamping seat which acts as the axis of rotation, controls the amount of resilient pressure applied to the clamping seat, and limits the vertical motion in the axis of rotation.
I accomplish these and other objects and obtain my new results as will be apparent from the device described in the following specication, particularly pointed out in the claims, and illustrated in the accompanying drawing, in which- Fig. l is an end elevation view of device shown clamped to a bus.
Fig. 2 is a side elevation view thereof, a por- 2 'tion in Section 'to show details of 'th olaiplg Seat Ilillbe'r.
Fig. 3 is a plan view of 'my device.
Referring more particularly to the drawing, the bus support clamp Ill is shown mounted by bolts II to a cap I2 of a standard insulator I3, having attaching bolts I4. The clamp IIJ comprises a Oase member -I5 and oppostely positioned integral arms I6 having free ends I1 extending upwardly toward and beyond each other over the sus I8 which they support. Arms le are spaced apart 'a distance sufficient to permit 'the b'us to laterally pass between them during installation or removal.
A clamping member I9 having 'a semi-cylindrical clamping 'seat 20 for supporting the bus is pivotally mounted to the base I5 by means of a pin 2l. The pin freely projects through the clamping member and is threadedly secured to the base. centrally depressed area 22 in the 'clamping member receives 'the head of the pin 'and with the depending peripheral flange 23 forms a housing for one end of spring 24, which spring forces the clamping member to resiliently engagethe Ibus and prevent chattering.
The base I5 has a depressed area 25 threadedly apertured to receive thel end oi the pin and together with the peripheral flange 26 extending upwardly 'and within theperipheral ange 23, forms a housing for the other end of the spring. 'Iflieo'v'eilapping flanges '23 and 26 function to limit the lateral movement of the clamping meinber and prevent a stress on the 'pin When there is a longitudinal movement of the bus, as Well as a limit stop to prevent excess compression of the 'Spr- The pin 2| performs' three functions, namely as an fa'xis of rotation for ,the clamping member, 'seeond1y as a means for adjusting the pressure of the spring by screwing the pin the. desired amount and peening the threaded end at 21 or providing a retaining element, and thirdly, as a retaining means to limit the vertical movement of the clamping member.
Each arm I6 is provided with cam surfaces 28 and 29. Cam 28 is positioned on the inner edge of free end Il to initially align the bus between the arms. Cam 29 is positioned on the under side of the free end, extending in a smooth curve from a point tangential to the bus upwardly to the end and functions to convert the twisting torque around the vertical axis to a vertical force in the spring to enable the arms to be clamped over the bus.
The device is installed on the bus by grasping the assembly of clamp and insulator and aligning the arms parallel to the bus, the cams 2B assisting in the alignment, and then placing the bus between the arms to rest on the clamping seat member. Rotating the assembly approximately 90 degrees, forces the arms over the bus through cams 29, which compresses the spring and securely positions the clamp in position on the bus. The clamping seat member is free to rotate with respect to the clamp, so that While the clamp is being rotated, the clamping seat member remains stationary with respect to the bus, which remains in the seat 29. The attaching bolts Hl of the insulator are then secured.
To free the clamp from the bus for cleaning or replacement of the assembly, the attaching bolts are removed and the assembly is rotated about the vertical axis through a 90 angle, where the arms are free and in a position parallel with the bus. It is to be noted that the clamping seat member has remained in a iixed position with respect to the bus, so that it is in a position to receive the bus when re-installed.
- The pressure of the spring is adjustably controlled by the pin which when rotated compresses the spring to a point Where the action of assembling the clamp on the bus results in only a small additional compression of the spring, as indicated by distance A in Figure 2, which is made as small as possible, allowing for suffi,- cient travel and considering manufacturing tolerances and any deflection of the arms under the stresses that might be imposed. Thus on removal of the clamp from the bus, the head of the pin restrains the clamping seat member from moving vertically under the action of the spring more than the distance A. In this manner, the minimum amount of eiort is required for installation and disassembly.
I have thus described my invention, but I desire it understood that it is not confined to the particular forms or uses shown and described, the same being merely illustrative, and that the invention may be carried out in other ways without departing from the spirit of my invention, and, therefore, I claim broadly the right to employ all equivalent instrumentalities coming Within the scope of the appended claims, and by means of which, objects of my invention are attained and new results accomplished, as it is obvious that the particular embodiments herein shown and described are only some of the many that can be employed to attain these objects and accomplish these results.
I claim:
1. A bus support for clamping a conductor to a supporting structure which comprises a base member, means for mounting the base member to the supporting structure, a plurality of spaced arm members xedly mounted to said base member and each having a free end extending over and engaging the conductor, said free ends spaced from said fixed ends and spaced from adjacent arms respectively a distance greater than the diameter of the conductor to receive the conductor, adjacent free ends of the arm members disposed in opposite directions, a rotatable clamping seat member mounted to said base member independently of said arm members whereby the conductor may be supported on the clamping seat member between and parallel to said arm members and the bus support rotated so that the arms extend transversely of the conductor to secure the conductor between the arm members and the clamping seat member.
2. A bus support for clamping a conductor to a supporting structure which comprises a base member, means for mounting the base member to the supporting structure, a plurality of spaced arm members mounted to said base member and each having a free end extending over and engaging the conductor, an adjustable grooved clamping seatv member spring-mounted to said base member and positioned intermediate the spaced-apart arm members, whereby the conductor may be resiliently supported on the clamping seat member, and the clamping seat member adjusted to secure the conductor between the arm members and the clamping seat member.
3. The device of claim 2 wherein said clamping seat member is secured to the base member by a centrally-positioned pin about which it is free to rotate, and a spring is positioned between the clamping seat member and the base.
IRVING FREDERICK MATTHYSSE.
REFERENCES (CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS Number Name Date 408,383 Graham Aug. 6, 1889 541,420 Bookhout June 18, 1895 900,917 Dodson Oct. 13, 1908 1,189,160 Monroe June 27, 1916 1,208,874 Wilson Dec. 19, 1916 1,307,240 Christopher June 17, 1919 1,794,998 Weinberger Mar. 3, 1931 1,859,767 Dowick May 24, 1932 FOREIGN PATENTS Number Country Date 184,663 England Aug. 24, 1922 354,025 Germany May 31, 1922 535,259 France Apr. l2, 1922 574,613 France Apr. 3, 1924
US67274A 1948-12-27 1948-12-27 Twist-on bus-support clamp Expired - Lifetime US2616646A (en)

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844727A (en) * 1953-09-25 1958-07-22 Arf Products Apparatus for treating water
US2855107A (en) * 1955-04-20 1958-10-07 Bendix Aviat Corp Implement retaining device
US2896012A (en) * 1955-09-22 1959-07-21 Mc Graw Edison Co Bus support
US2905743A (en) * 1956-12-14 1959-09-22 Penn Union Electric Corp Electrical bus support
US2955790A (en) * 1956-12-14 1960-10-11 Penn Union Electric Corp Electrical bus support
US3188030A (en) * 1961-12-11 1965-06-08 Fischer Arthur Clamp or hanger for cables and the like
DE1265262B (en) * 1960-08-31 1968-04-04 Licentia Gmbh Support of a partially insulated line in electrical high and maximum voltage systems
US4039744A (en) * 1976-04-26 1977-08-02 Square D Company Electrical bus support
US4673151A (en) * 1985-08-30 1987-06-16 Navistar International Corporation Twist clip
US4941633A (en) * 1986-11-21 1990-07-17 Walker Robert L Rope support device
US5011055A (en) * 1989-11-08 1991-04-30 Neugent John J Bicycle pump bracket
US5107769A (en) * 1988-09-28 1992-04-28 Liftbyggarna Ab Grip
US5660133A (en) * 1996-04-26 1997-08-26 Munich; William Fender mounting system and method for boats
US6189488B1 (en) * 1998-03-24 2001-02-20 Engineering Services & Products Company Waterer for livestock
US20040238697A1 (en) * 2003-05-28 2004-12-02 Heath Richard W. Hanger for fire sprinkler pipe
US20090072099A1 (en) * 2007-09-19 2009-03-19 Trotter Jason K Clamp assembly
US20110248468A1 (en) * 2010-04-09 2011-10-13 Specialized Bicycle Components, Inc. Bicycle cable housing guide
USD678040S1 (en) * 2011-07-07 2013-03-19 Miki Pulley Co., Ltd. Guide roller
USD688549S1 (en) * 2011-11-18 2013-08-27 Miki Pulley Co., Ltd. Guide roller
US9004421B2 (en) 2011-11-02 2015-04-14 The Viking Corporation Fire protection sprinkler support system
US9004422B2 (en) 2011-11-02 2015-04-14 The Viking Corporation Fire protection sprinkler support system
US20160010764A1 (en) * 2014-07-11 2016-01-14 Cooper Technologies Company Pipe restraint
US20180259396A1 (en) * 2017-03-07 2018-09-13 Kiddie Technologies, Inc. Mount with clip
US10256615B2 (en) 2015-10-16 2019-04-09 Tyco Electronics Canada Ulc Bus supports and related assemblies and methods
US10455824B2 (en) * 2014-11-03 2019-10-29 Rick Eugene LAWRENCE Agricultural crop application system
US20200281183A1 (en) * 2019-03-07 2020-09-10 Hagie Manufacturing Company Drop-down applicators for an agricultural sprayer
US20210293099A1 (en) * 2018-08-03 2021-09-23 National Oilwell Varco, L.P. End effectors for automated pipe handling
US11276514B2 (en) 2019-09-18 2022-03-15 TE Connectivity Services Gmbh Insulator systems with corona suppression
US11432481B2 (en) * 2017-04-13 2022-09-06 Arno Drechsel Drop hose irrigation device and method of mounting such irrigation device to a supporting rod of an irrigation system
US11891864B2 (en) 2019-01-25 2024-02-06 National Oilwell Varco, L.P. Pipe handling arm
US11988059B2 (en) 2019-02-22 2024-05-21 National Oilwell Varco, L.P. Dual activity top drive
DE102024103080A1 (en) * 2024-02-05 2025-08-07 Audi Aktiengesellschaft Soundproofing panel for a motor vehicle, corresponding motor vehicle and method for assembling a motor vehicle

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US408383A (en) * 1889-08-06 Line-wire insulator
US541420A (en) * 1895-06-18 Plumber s tack
US900917A (en) * 1908-04-01 1908-10-13 Richard A Ohloff Insulator.
US1189160A (en) * 1915-03-30 1916-06-27 Oliver E Monroe Wire-holding means for electric conductors.
US1208874A (en) * 1916-08-19 1916-12-19 William E Wilson Insulator.
US1307240A (en) * 1919-06-17 Topher
FR535259A (en) * 1921-05-10 1922-04-12 Power socket with plug
DE354025C (en) * 1920-10-30 1922-06-01 Ludwig Le Bret Retaining clamp for wires, cables, pipes, rails, etc. like
GB184663A (en) * 1921-07-12 1922-08-24 Owen Richard Williams Binder for securing telegraph and telephone wires to insulators
FR574613A (en) * 1923-02-28 1924-07-16 Insulator and mounting devices for electrical conductors
US1794998A (en) * 1924-12-16 1931-03-03 Westinghouse Electric & Mfg Co Transmission-line support support
US1859767A (en) * 1930-07-07 1932-05-24 Dowick Benjamin Fuse puller

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US408383A (en) * 1889-08-06 Line-wire insulator
US541420A (en) * 1895-06-18 Plumber s tack
US1307240A (en) * 1919-06-17 Topher
US900917A (en) * 1908-04-01 1908-10-13 Richard A Ohloff Insulator.
US1189160A (en) * 1915-03-30 1916-06-27 Oliver E Monroe Wire-holding means for electric conductors.
US1208874A (en) * 1916-08-19 1916-12-19 William E Wilson Insulator.
DE354025C (en) * 1920-10-30 1922-06-01 Ludwig Le Bret Retaining clamp for wires, cables, pipes, rails, etc. like
FR535259A (en) * 1921-05-10 1922-04-12 Power socket with plug
GB184663A (en) * 1921-07-12 1922-08-24 Owen Richard Williams Binder for securing telegraph and telephone wires to insulators
FR574613A (en) * 1923-02-28 1924-07-16 Insulator and mounting devices for electrical conductors
US1794998A (en) * 1924-12-16 1931-03-03 Westinghouse Electric & Mfg Co Transmission-line support support
US1859767A (en) * 1930-07-07 1932-05-24 Dowick Benjamin Fuse puller

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844727A (en) * 1953-09-25 1958-07-22 Arf Products Apparatus for treating water
US2855107A (en) * 1955-04-20 1958-10-07 Bendix Aviat Corp Implement retaining device
US2896012A (en) * 1955-09-22 1959-07-21 Mc Graw Edison Co Bus support
US2905743A (en) * 1956-12-14 1959-09-22 Penn Union Electric Corp Electrical bus support
US2955790A (en) * 1956-12-14 1960-10-11 Penn Union Electric Corp Electrical bus support
DE1265262B (en) * 1960-08-31 1968-04-04 Licentia Gmbh Support of a partially insulated line in electrical high and maximum voltage systems
US3188030A (en) * 1961-12-11 1965-06-08 Fischer Arthur Clamp or hanger for cables and the like
US4039744A (en) * 1976-04-26 1977-08-02 Square D Company Electrical bus support
US4673151A (en) * 1985-08-30 1987-06-16 Navistar International Corporation Twist clip
US4941633A (en) * 1986-11-21 1990-07-17 Walker Robert L Rope support device
US5107769A (en) * 1988-09-28 1992-04-28 Liftbyggarna Ab Grip
US5011055A (en) * 1989-11-08 1991-04-30 Neugent John J Bicycle pump bracket
US5660133A (en) * 1996-04-26 1997-08-26 Munich; William Fender mounting system and method for boats
US6189488B1 (en) * 1998-03-24 2001-02-20 Engineering Services & Products Company Waterer for livestock
US20040238697A1 (en) * 2003-05-28 2004-12-02 Heath Richard W. Hanger for fire sprinkler pipe
US7455268B2 (en) * 2003-05-28 2008-11-25 Nibco, Inc. Hanger for fire sprinkler pipe
US20090065657A1 (en) * 2003-05-28 2009-03-12 Nibco Inc. Hanger for fire sprinkler pipe
US7832248B2 (en) 2003-05-28 2010-11-16 Nibco Inc. Hanger for fire sprinkler pipe
US20090072099A1 (en) * 2007-09-19 2009-03-19 Trotter Jason K Clamp assembly
US20110248468A1 (en) * 2010-04-09 2011-10-13 Specialized Bicycle Components, Inc. Bicycle cable housing guide
US8459681B2 (en) * 2010-04-09 2013-06-11 Specialized Bicycle Components, Inc. Bicycle cable housing guide
USD678040S1 (en) * 2011-07-07 2013-03-19 Miki Pulley Co., Ltd. Guide roller
US9004421B2 (en) 2011-11-02 2015-04-14 The Viking Corporation Fire protection sprinkler support system
US9004422B2 (en) 2011-11-02 2015-04-14 The Viking Corporation Fire protection sprinkler support system
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