| Patent Number |
Title Of Patent |
Date Issued |
| RE32076 |
Modular screw anchor having lead point non-integral with helix plate |
February 4, 1986 |
| A high strength, modular screw anchor is disclosed which exhibits enhanced failure resistance notwithstanding use of essentially the same amount of material as conventional anchors, and which can be installed using existing installation equipment. The preferred screw anchors of the i |
| D338447 |
Single phase recloser apparatus |
August 17, 1993 |
|
| D310062 |
Cutout insulator |
August 21, 1990 |
|
| D278331 |
Shield and fuse contact assembly for electrical cutout |
April 9, 1985 |
|
| D259634 |
Insulator cover |
June 23, 1981 |
|
| D247963 |
Insulator assembly |
May 23, 1978 |
|
| D246646 |
Cloverleaf insulator assembly |
December 13, 1977 |
|
| 5286142 |
Reduced moment anchor hub |
February 15, 1994 |
| An earth anchor apparatus having reduced bending moment characteristics is provided, including a longitudinally extending hub having first and second axial ends. Affixed to the hub between the ends thereof is a radially extending load-bearing element, including a leading edge intersectin |
| 5281767 |
Reduced mechanical stress bushing and conductor rod assembly |
January 25, 1994 |
| An improved, failure-resistant, low mechanical stress electrical connector bushing (10) is provided which includes an elongated, central metallic conductor rod (12) with an insulative epoxy body (14) cast about the central rod (12). The rod is of substantially constant diameter throughou |
| 5254814 |
Motor operator connecting member for padmount switchgear |
October 19, 1993 |
| A motor operator connecting member for padmount switchgear is provided which includes a connector and a key shiftably mounted thereon. The motor operator connecting member is adapted for selectively operatively coupling or decoupling a linear actuator and a shaft operatively connected to |
| 5224310 |
Hand-installed landscape foundation |
July 6, 1993 |
| A manually installed landscape foundation (20, 56) adapted for supporting a yard light (22) or similar device requiring connection to a utility line (47) such as an electrical cable or gas line is provided having a lowermost anchor shaft (24, 64) equipped with a load-bearing helix (28, |
| 5213448 |
Underpinning bracket for uplift and settlement loading |
May 25, 1993 |
| An apparatus for stabilizing the foundation of a building structure includes a support assembly fastened to the foundation and a screw anchor installed in the earth in generally upright disposition with an upper end thereof located adjacent the foundation. The upper end is secured within |
| 5212218 |
Hydrophobic, erodiable synthetic resin composition for electrical insulators |
May 18, 1993 |
| Improved synthetic resin insulators having enhanced arc track resistance and reduced UV light degradation characteristics are provided which include a continuous resin phase and a discrete, discontinuous hydrophobic phase in the form of discrete, suspended droplets within the resin. The |
| 5195704 |
Neutral conductor clamp |
March 23, 1993 |
| A clamp for suspending a conductor from a support structure includes a body and a cover, each provided with a conductor-supporting surface having a trough and a set of upstanding tabs lining the sides of the trough and protruding from the conductor-supporting surface. The tabs on the cov |
| 5181164 |
Compartment barrier for padmounted switchgear |
January 19, 1993 |
| In an electrical distribution apparatus a switchgear device has a fixed element disposed within a shielded region of an enclosure of the apparatus, and a movable element supported for movement between a closed position in contact with the fixed element and an open position out of con |
| 5171107 |
Method of underpinning existing structures |
December 15, 1992 |
| A low cost, easy to install underpinning apparatus (14) for supporting below-grade structural footings such as foundations (10) or the like is provided which makes use of a power installed, load-bearing helix-type screw anchor (16) together with a connecting bracket assembly (b 19) s |
| 5149928 |
Arc spinner interrupter having contact bounce suppressor |
September 22, 1992 |
| An arc spinner interrupter apparatus includes a first electrical contact assembly having a fixed contact and an arcing element. A second electrical contact assembly includes an arm selectively movable along a path into and out of engagement with the fixed contact. The arcing element exte |
| 5139368 |
Method of underpinning existing structures |
August 18, 1992 |
| A low cost, easy to install underpinning apparatus (14) for supporting below-grade structural footings such as foundations (10) or the like is provided which makes use of a power installed, load-bearing helix-type screw anchor (16) together with a connecting bracket assembly (19) secured |
| 5120163 |
Foundation underpinning bracket and jacking tool assembly |
June 9, 1992 |
| Apparatus and a method is disclosed for stabilizing the foundation of an existing building structure which may or has experienced settlement or movement. A support for the foundation is provided that is adapted to be located at a position in underlying relationship to the foundation |
| 5113626 |
Earth anchor apparatus having improved load bearing element |
May 19, 1992 |
| An earth anchor apparatus includes a hub having a longitudinal axis and first and second axial ends, and a load-bearing helix affixed to the hub. The load-bearing helix includes a generally radially extending leading edge adjacent the first end of the hub, a generally radially extending |
| 5103364 |
Recloser apparatus |
April 7, 1992 |
| A recloser apparatus is provided with an enclosure or tank (40) in which a current interrupter assembly (49) is disposed that includes a pair of relatively movable contacts (50, 54) movable between a closed, current-carrying position and an open, current-interrupting position. An ope |
| 5099382 |
Electrical recloser having external mounting arrangement for electronics assembly |
March 24, 1992 |
| An electrical recloser apparatus includes a tank (10) having bottom, top and side walls (18, 22, 16) which define an interior, sealed space (14), and a current interrupter (44) disposed within the sealed space (14) and including a pair of relatively movable contacts (46, 48) which are mo |
| 5076449 |
Load measurement system for boom mounted auxiliary arm |
December 31, 1991 |
| A boom lift apparatus for use on a truck having a boom and a boom mounted bucket includes a mast selectively positionable on the boom at any of a plurality of different angles and supported on the boom for limited axial movement by a hydraulic cylinder which is fixed relative to one of t |
| 5066168 |
Cylindrical foundation support drivable into ground with removable helix |
November 19, 1991 |
| A combined foundation earth anchor and installation unit includes a cylindrical foundation support which is open at opposite ends and adapted to at least partially be embedded in the ground, an installation drive component removably positioned within the support and provided with an |
| 5019937 |
Circuit improvement apparatus having combination current limiting fuse and resettable vacuum swi |
May 28, 1991 |
| A current interrupting apparatus adapted to be interposed in either a single or multiple phase electrical circuit includes a fuse interposed in each phase of the circuit. A current interrupter is electrically connected in series with each fuse for interrupting the current through the cir |
| 5015810 |
Arc spinner interrupter |
May 14, 1991 |
| An arc spinner interrupter includes a first fixed electrical contact and a ring electrode coupled to the fixed contact through a field coil surrounding the ring electrode. A second electrical contact has an arm which moves along a path perpendicular to the central longitudinal axis f |
| 5015514 |
Pultruded or filament wound synthetic resin fuse tube |
May 14, 1991 |
| Improved arc-suppressing fuse tubes of the type used in electrical cutouts is provided which includes a fluid epoxy resin matrix core designed, upon experiencing high temperature arcing conditions, to generate sufficient moisture and arc-suppressing gases to safely and efficiently interr |
| 5011336 |
Underpinning anchor system |
April 30, 1991 |
| A low-cost easy to install underpinning apparatus (14) for supporting below-grade structural footings such as foundations (10) or the like is provided which makes use of a power installed, load-bearing helix-type screw anchor (16) together with a connecting bracket assembly (18) secured |
| 4996806 |
Lead point for helical earth anchor |
March 5, 1991 |
| A lead element is provided for use with an earth anchor including an elongated rod and an anchor member having a longitudinal hub provided with first and second axial ends and presenting a bore extending axially therethrough, and an outwardly extending load-bearing element affixed to |
| 4981000 |
Penetration of power installed anchor |
January 1, 1991 |
| An earth anchor apparatus adapted to be driven by a source of rotational driving force into unbroken soil includes a longitudinally extending hub having first and second axial ends. A recess is provided in one axial end of the hub by which the anchor may be driven, and a radially extendi |
| 4980527 |
Arc spinner interrupter |
December 25, 1990 |
| An arc spinner interrupter includes a first fixed electrical contact and a ring electrode coupled to the fixed contact through a field coil surrounding the ring electrode. A second electrical contact has an arm which moves along a path perpendicular to the central longitudinal axis f |
| 4951022 |
Sensitive latch and trip mechanism |
August 21, 1990 |
| A sensitive latch and trip mechanism includes a latch plate supported for pivotal movement under the influence of a load, and a latch lever supported for pivotal movement about a lever axis. The lever includes a latching surface disposed in a latching surface plane and a lever axis l |
| 4935715 |
Sectionalizer with externally mounted electronic controller |
June 19, 1990 |
| An electronic sectionalizer includes mounting structure including first and second electrical contacts spaced from one another and electrically conductive structure having an external surface and provided with first and second electrical terminals adapted to engage the first and second |
| 4886945 |
Replaceable bushing and contact assembly for blade type air insulated switchgear |
December 12, 1989 |
| Improved switchblade-type, air dielectric switchgear apparatus is provided which utilizes a minimum of supporting insulators and incorporates readily field-replaceable bushing assemblies so that the switchgear apparatus may be serviced in the field using only conventional tools. In prefe |
| 4870387 |
Beam strengthened cutout insulator |
September 26, 1989 |
| An improved, integrally cast, synthetic resin insulator (22) especially adapted for use in an electrical cutout device (20) is provided which can be readily fabricated and gives greatly enhanced beam strength and arc track resistance characteristics. The preferred insulator (22) is cast |
| 4804809 |
Motor operator for padmount switchgear |
February 14, 1989 |
| A motor operator for local or remote shifting of switchgear contacts toward either open or closed positions includes a reversible motor and rotatable drive screw mounted on common support structure for simultaneous pivoting movement as a drive nut translates fore-and-aft along the length |
| 4798922 |
Spring actuated latch, load and trip mechanism for switchgear |
January 17, 1989 |
| Improved blade-type, air dielectric switchgear apparatus is provided having spring loaded, fast acting, operator independent mechanism for selective opening and closing of internal switch contacts. Preferably, the operating mechanism includes a pair of opposed, pivotal, notched, scissor- |
| 4797777 |
Electronic sectionalizer and mounting structure for switchgear |
January 10, 1989 |
| An electronic sectionalizer mechanism includes upper and lower contact mounting structure, and a sectionalizer tube carrying a logic circuit is telescopically received within the lower contact mounting structure. Once fault current conditions downstream of the sectionalizer mechanism are |
| 4795996 |
Electronic sectionalizer with resettable actuator |
January 3, 1989 |
| An electronic sectionalizer for a branch line of a high voltage power distribution system has a resettable actuator for unlatching a trunnion member and release of a sectionalizer tube toward a disabled or drop-out orientation. The actuator includes an elongated, spring-loaded plunger |
| 4781348 |
Adjustable banded aluminum transformer mount |
November 1, 1988 |
| A mounting assembly for supporting electrical apparatus such as transformers and the like on a utility pole includes spaced, equipment supporting brackets that are interconnected and secured to the pole by means of elongated, toothed plates. End regions of each plate extend through c |
| 4768010 |
Latch and pivot mechanism for electronic sectionalizer mounting structure |
August 30, 1988 |
| A pivot mechanism for drop-out of an electronic sectionalizer tube from an upper contact of mounting structure is arranged so that substantially the entire force released by an actuator fired by a sectionalizer logic circuit immediately causes the tube to drop away and disengage the uppe |
| 4752760 |
Electrical device end cap connection assembly using rigid sealing material |
June 21, 1988 |
| An end cap connection assembly for use in connecting the metallic end caps of an electrical device such as current limiting fuses or lightning arrestors to associated insulative housings is provided which gives a strong mechanical bond as well as a leak-proof seal between these compo |
| 4746381 |
Method of making an end cap connection for a fluid-resistance electrical device |
May 24, 1988 |
| An end cap connection provides a strong mechanical bond as well as a fluid resistant seal between an electrically insulative tubular member and a conductive end piece or cap. The cap is provided with a generally U-shaped channel, and a quantity of synthetic resin adhesive disposed in the |
| 4713503 |
Three phase vacuum switch operating mechanism with anti-bounce device for interrupter contacts |
December 15, 1987 |
| The velocity of a snap action, spring loaded vacumm switch closing mechanism is substantially reduced by impacting a lever of the mechanism against a first swingable energy absorbing arm which, in turn, pivots to contact a pair of second energy absorbing arms. The pair of second arms |
| 4707964 |
Method of providing support for an elongated tower leg |
November 24, 1987 |
| An improved tower foundation is provided which is inexpensive to manufacture and when installed, serves to securely support a leg of power transmission towers and the like. The tower foundation hereof includes a screw-type earth anchor member having a tubular cavity at the uppermost |
| 4688143 |
Fuse well and housing for pad-mounted, double fused switchgear |
August 18, 1987 |
| An improved, lowcost double-fused vacuum switchgear apparatus designed for underground electrical distribution systems is provided which makes use of a specially configured oil tank-defining wall and insulative protective fuse well sleeves to give enhanced protection to workmen performin |
| 4686502 |
Terminal bracket structure for a current limiting fuse |
August 11, 1987 |
| A current limiting fuse has an electrical subassembly which includes fusible elements that are helically wound about a plurality of support plates which, in turn, are secured on each end to a terminal bracket. A leg member electrically and mechanically interconnects the terminal brac |
| 4641727 |
Electrically insulated temporary aerial platform |
February 10, 1987 |
| An electrically insulated aerial platform assembly for use by a lineman on or around utility poles is provided which is constructed to maintain the actual work platform in an electrically insulated condition relative to the utility pole itself and the pole connection hardware associated |
| 4628294 |
End cap assembly for a fluid resistant electrical device |
December 9, 1986 |
| An end cap assembly for a fluid resistant electrical device includes a solderable insulating tube end cap and an insert having a solderable cylindrical body portion positioned within a tubular opening of the end cap. The body portion of the insert has a circumscribing groove containing |
| 4561231 |
Tower-foundation anchor interconnection |
December 31, 1985 |
| An improved tower foundation is provided which is inexpensive to manufacture and when installed, serves to securely support a leg of power transmission towers and the like. The tower foundation hereof includes a screw-type earth anchor member having a tubular cavity at the uppermost |
