Patents Assigned to Lindsey Manufacturing Company
  • Patent number: 9784766
    Abstract: A dynamic real time transmission line monitor, a dynamic real time transmission line monitoring system, and a method of dynamic real time transmission line monitoring. A dynamic real time transmission line monitor includes a housing installable on a transmission line, the housing including a base portion, and a cover portion coupled to the base portion and defining a cavity of the housing together with the base portion; a sensor configured to sense in real time at least one of a temperature, a position, a current, an acceleration, a vibration, a tilt, a roll, or a distance to a nearest object; and an antenna in the cavity of the housing and configured to transmit a signal including information sensed by the sensor away from the monitor in real time.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 10, 2017
    Assignee: LINDSEY MANUFACTURING COMPANY
    Inventors: Keith E. Lindsey, Philip E. Spillane, An-Chyun Wang
  • Publication number: 20140266237
    Abstract: A dynamic real time transmission line monitor, a dynamic real time transmission line monitoring system, and a method of dynamic real time transmission line monitoring. A dynamic real time transmission line monitor includes a housing installable on a transmission line, the housing including a base portion, and a cover portion coupled to the base portion and defining a cavity of the housing together with the base portion; a sensor configured to sense in real time at least one of a temperature, a position, a current, an acceleration, a vibration, a tilt, a roll, or a distance to a nearest object; and an antenna in the cavity of the housing and configured to transmit a signal including information sensed by the sensor away from the monitor in real time.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: LINDSEY MANUFACTURING COMPANY
    Inventors: Keith E. LINDSEY, Philip E. SPILLANE, An-Chyun WANG
  • Patent number: 8738318
    Abstract: A device and method of precise distance measurement of a transmission line to any object below it is disclosed, along with a network of such devices. The technique employs ultrasonic sensor technology to measure the distance to the nearest object, be it vegetation or a crossing conductor below, and reports that distance wirelessly to the system operator or transmission asset owner. The ultrasonic measurement package may be part of a Transmission Line Security Monitor, which mounts to a transmission line conductor and is powered by the transmission line, transmitting the data by radio links. The technology is equally applicable to encroachment of objects from the side (for example, other transmission lines), as well as to other electrical lines, such as distribution lines, or to other sensing. A built-in transceiver allows the device to communicate with other devices and forward alerts from these devices in a daisy-chain fashion to the intended recipient.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: May 27, 2014
    Assignee: Lindsey Manufacturing Company
    Inventor: Philip E. Spillane
  • Publication number: 20130191066
    Abstract: A device and method of precise distance measurement of a transmission line to any object below it is disclosed, along with a network of such devices. The technique employs ultrasonic or laser sensor technology to measure the distance to the nearest object, be it vegetation or a crossing conductor below, and reports that distance wirelessly to the system operator or transmission asset owner. The ultrasonic measurement package may be part of a Transmission Line Security Monitor, which mounts to a transmission line conductor and is powered by the transmission line, transmitting the data by radio links. The technology is equally applicable to encroachment of objects from the side (for example, other transmission lines), as well as to other electrical lines, such as distribution lines, or to other sensing. A built-in transceiver allows the device to communicate with other devices and forward alerts from these devices in a daisy-chain fashion to the intended recipient.
    Type: Application
    Filed: August 2, 2011
    Publication date: July 25, 2013
    Applicant: LINDSEY MANUFACTURING COMPANY
    Inventors: Philip E. Spillane, Alireza Malek
  • Patent number: 7633262
    Abstract: A power supply generated through a set of current transformers is disclosed. The current transformers may be removably attached to a primary power line such as a high voltage power line. The power supply may be used to power a device or charge a battery for a device that requires a low voltage input. The power supply may be used in underground vaults and pad mounted chambers that contain high voltage power lines. The power supply may generate a low voltage direct current out put that is not available in the vicinity of high voltage power lines in an underground vault or pad mounted chamber.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: December 15, 2009
    Assignee: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Dusan Striez, James L. Landes
  • Patent number: 6595323
    Abstract: An apparatus providing a permanent pole step and/or attachment mount for removable steps, accessories or equipment for hollow poles that is practical and economical to use, and that provides a substantially horizontal step or mounting surface that does not rotate and that extends only a limited distance from the hollow pole. A pole step having a support member and a mating plate, where a portion of the support member is inserted into a mounting hole of the pole and the remaining portion of the support member protrudes out of the hole to create a stepping surface. The plate has a tongue which mates with the support member in the mounting hole to secure the support member. An attachment mount for attaching temporary steps, equipment or accessories to a hollow pole, having a support member, a mating plate and a guide washer. The plate receives the support member, and the tongue which mates with the support member in the mounting hole to secure it in place.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: July 22, 2003
    Assignee: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Steven D. Scholfield
  • Patent number: 6555999
    Abstract: A system and method for measuring at least one characteristic of a power line supported by a power line pole includes a pin having a first end coupled to the pole and a second end adapted to engage a sensor, wherein the sensor measures at least one characteristic of the power line and an insulator coupled to the second end of the pin supports the power line. The close proximity of the sensing element to the conductor immerses the sensor in the strong magnetic field close to the current carrying conductor to provide low cost accurate current measurement capability.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: April 29, 2003
    Assignee: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Richard J. Serocki
  • Publication number: 20020066620
    Abstract: An apparatus providing a permanent pole step and/or attachment mount for removable steps, accessories or equipment for hollow poles that is practical and economical to use, and that provides a substantially horizontal step or mounting surface that does not rotate and that extends only a limited distance from the hollow pole.
    Type: Application
    Filed: October 18, 2001
    Publication date: June 6, 2002
    Applicant: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Steven D. Scholfield
  • Patent number: 5729888
    Abstract: An integrated electrical system includes a first conductor for receiving current from power lines or other equipment. The conductor is coupled to a conventional vacuum switch for controlling flow of current through the system. A current collector coupled to the vacuum switch collects current from the vacuum switch. A second conductor coupled to the current collector delivers current to equipment or lines externally of the device. The components of the system are housed within an inner epoxy encapsulated within Polysil. The epoxy preferably has temperature characteristics which are similar to that of Polysil to prevent cracking due to temperature stress. At least one sensor may also be provided integrally with the components for detecting faults or for sensing general power line conditions. A preferred voltage sensor has resistive shielding for accurate sensing in adverse environments.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 24, 1998
    Assignee: Lindsey Manufacturing Company
    Inventors: Abdelgawad Abdelgawad, Mun Seog Choi, Keith E. Lindsey, Steven D. Scholfield
  • Patent number: 5698831
    Abstract: An integrated electrical system includes a first conductor for receiving current from power lines or other equipment. The conductor is coupled to a conventional vacuum switch for controlling flow of current through the system. A current collector coupled to the vacuum switch collects current from the vacuum switch. A second conductor coupled to the current collector delivers current to equipment or lines externally of the device. The components of the system are housed within an inner epoxy encapsulated within Polysil. The epoxy preferably has temperature characteristics which are similar to that of Polysil to prevent cracking due to temperature stress. At least one sensor may also be provided integrally with the components for detecting faults or for sensing general power line conditions. A preferred voltage sensor has resistive shielding for accurate sensing in adverse environments.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Lindsey Manufacturing Company
    Inventors: Abdelgawad Abdelgawad, Mun Seog Choi, Keith E. Lindsey, Steven D. Scholfield
  • Patent number: 4823022
    Abstract: A line condition sensing device, e.g. a current transformer and/or a voltage transformer, is embedded in a pole mounted, power line supporting insulator to form an integral unit therewith. One end of the insulator carries a pole mounting base. The other end of the insulator carries a power line receiving clamp. The line condition sensing device is connected in parallel with a hot power line by taps to permit conditions to be monitored without cutting or dead ending the line. The device is installed on a hot line by opening the power line receiving clamp of the original insulator, holding the power line in spaced relationship from the original insulator while replacing it with the new insulator, resecuring the power line on the clamp of the new insulator, and then connecting the taps to the hot power line.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: April 18, 1989
    Assignee: Lindsey Manufacturing Company
    Inventor: Keith E. Lindsey
  • Patent number: 4769959
    Abstract: A temporary power line tower assembly and method of installing the same to serve emergency needs in restoring power service when a permanent tower is damaged or in need of repair. The temporary tower assembly includes a plurality of prefabricated sections the base section of which incorporates a gimbal joint and a rotary joint axially of the base section and normal to the gimbal axes at their point of intersection. The base section is provided with a lockout device operable to restrain all pivotal movement about the three pivot axes of the gimbal and the rotary joints to permit storage, transit and handling of the base section without risk of damage or injury to personnel.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: September 13, 1988
    Assignee: Lindsey Manufacturing Company
    Inventor: Keith E. Lindsey
  • Patent number: 4744695
    Abstract: Disclosed is a kit of curvilinear duct components and a method of utilizing the same to provide an improved mode of simultaneously installing and protecting multiple electrical cables in underground duct installations. The components include tubular elbow members, a major portion of at least some of which are of D-shape in cross section and having a major internal width at least as great as the combined diameters of multiple cables to safeguard against cable jamming during installation and which portion converges at one end to a circular shape matable with adjacent linear ducting. The curvilinear components are formed of impervious, electrically nonconductive, abrasion resistant material, such as polymer, concrete or glass filled thermosetting plastic.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: May 17, 1988
    Assignee: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Frank Gasztonyi
  • Patent number: 4709125
    Abstract: A combined strain insulator and arcing horn assembly. The arcing horns comprise a pair of rods having V-shaped outer ends criss crossing one another along one lateral side of the insulator and arranged to form multiple self-extinguishing wiring gaps emanating from the common gap between the spaced apart apexes thereof. The assembly is eminently suited for installation vertically, horizontally or in an inclined position. The hardware components are identical and integral except for fasteners.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: November 24, 1987
    Assignee: Lindsey Manufacturing Company
    Inventor: Keith E. Lindsey
  • Patent number: 4521198
    Abstract: Provided by this invention is an instruction and training kit of modular components readily interconnectible in a variety of ways without tools or fasteners for use in conducting feasibility studies of different modes of erecting power line supports while a damaged permanent tower is being serviced. The kit consists of a multiplicity of miniature components made roughly to scale to simulate full scale components designed for assembly and temporary installation to support high potential conductors. All components, including the baseboard, are compactly storable when not in use.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: June 4, 1985
    Assignee: Lindsey Manufacturing Company
    Inventor: Keith E. Lindsey
  • Patent number: 4160540
    Abstract: A fast action disconnect for releasably coupling parts together such as a power line stringing block and a conventional dog nut at the lower end of a power line insulator. The disconnect has a receiving socket for the dog nut insertable through one side of the disconnect and includes a barrier for releasably but positively locking the dog nut assembled to the disconnect. The barrier is movable between a retracted locking position and an extended release position permitting disassembly of a dog nut relative to the main body of the disconnect.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: July 10, 1979
    Assignee: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Hoyt W. Bozeman, Jr.
  • Patent number: 4093183
    Abstract: A unitary grounding assembly for pivoting attachment astride a bundle conductor stringing block and provided with grounding rollers biased against the underside of the conductors. The legs of a roller supporting bracket are resilient and constructed to twist lengthwise thereof to accommodate differential sag of the conductors and to maintain the rollers in pressurized electrical contact with a respective one of the conductors.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: June 6, 1978
    Assignee: Lindsey Manufacturing Company
    Inventors: Keith E. Lindsey, Hoyt W. Bozeman, Jr.
  • Patent number: 4018422
    Abstract: A bundle conductor stringing block having provision for threading the same with a conductor hauling line as the line is dispensed from an aircraft. For this purpose one side frame of the block is provided with a rotary gate having a slot to receive and transfer the hauling line into the block throat and onto a central sheave. The spring-biased gate is held cocked open by a latch released by entry of the hauling line into the slot whereby the gate rotates to its line discharge position. The block includes guard members positioned in the plane of the throat until pivoted to a position clear of the throat by entry of the conductor running board. To minimize the bending moment on the sheave shaft, the axis of the threading gate is located inwardly of a vertical plane through the exterior face of the underlying outer sheave of the block.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: April 19, 1977
    Assignee: Lindsey Manufacturing Company
    Inventor: Hoyt W. Bozeman, Jr.