Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 6897384 | Polymer insulator apparatus and method of mounting same The cantilever and compression strength of a polymer post insulator decreases according to lengthening of lever length of the polymer post insulator. By combining polymer post insulators to construct a structure having an increased strength in an arbitrary direction... | 05/24/2005 |
| 5187771 | Heat processing apparatus utilizing a plurality of stacked heater holders A heat processing apparatus comprises a reactor tube in which matters to be processed are housed, a wire-shaped heating unit enclosing the reactor tube, a support device for supporting the heating unit at plural positions, and reinforcing members for rein... | 02/16/1993 |
| 4891473 | High voltage insulators constructed to have plural dry bands in use The invention relates to high voltage suspension insulators of the single disc type and high voltage station post insulators consisting of unitary insulator sections. The insulator elements are designed so as to maximize the number of dry bands under adve... | 01/02/1990 |
| 4833278 | Insulator housing made from polymeric materials and having spirally arranged inner sheds and water sheds An insulator housing comprising a resin bonded fibre tube carrying water repellent, spirally arranged inner sheds and water sheds made from strips of polymeric material provides improved outdoor electrical insulation. The insulator housing provides greate... | 05/23/1989 |
| 4810836 | Optical fiber-containing insulators Optical fiber-containing insulators each comprises an insulator body having a through hole provided in its central portion and extending along an axial direction thereof, an optical fiber core wire passing through the through hole, an insulating material ... | 03/07/1989 |
| 4760640 | Insulator-jack for replacing insulator disks An insulator-jack for replacing damaged electrical insulators in a string of insulators comprises a pair of threaded rods disposed in substantially parallel relation to one another, a pair of coplanar spaced-apart insulator clamping collars, each being co... | 08/02/1988 |
| 4731507 | Electrical insulator string with bullet-proof protective rings A bullet-proof board includes a pair of steel plates of substantially identical thicknesses that sandwich a thick intermediate layer therebetween and a thin surface layer secured to that steel plate surface which faces a striking bullet. The intermediate ... | 03/15/1988 |
| 4710850 | Tower design for high-voltage systems The invention relates to a tower design for high-voltage systems consisting of several stories (2 to 12) which are connected to each other by means of insulators, where each story (2 to 12) comprises support bars (16) of electrically insulating material a... | 12/01/1987 |
| 4613727 | Electrical insulator column with fiber optic cable and gas supply tube Hermetically sealed fiber optic cables (LW) are conducted through an insulator column consisting of several hollow insulators. The fiber optic cables (LW) are fastened to a support element (TE), whose one end is connected to the reference potential and wh... | 09/23/1986 |
| 4234770 | Sectionalized porcelain insulator having removable circuit breaker A porcelain insulator type circuit breaker comprises a lower porcelain tube secured to a supporting frame, an upper porcelain tube mounted on the lower porcelain tube, an interrupting unit accommodated in the upper porcelain tube, and a rotating device fo... | 11/18/1980 |
| 4150252 | V-suspension insulator assemblies for suspending multiple conductors A V-suspension insulator assembly for suspending multiple conductors is disclosed, in which an angle of intersection of axial lines of connecting hardwares for connecting an inverted-U shape upper yoke to which V-suspension insulator strings for suspendin... | 04/17/1979 |
| 4053706 | Suspension bracket and apparatus A suspension bracket and apparatus for a bundle conductor has a yoke plate suspended at opposite sides thereof by respective insulator strings. To reduce high voltage gradients across the lowermost insulators of the strings, one or more of the sub-conduct... | 10/11/1977 |
| 4047279 | Upgrading current distribution insulators A method is disclosed for upgrading insulators of a current distribution system when the voltage of the system is to be increased. New, additional insulators are coupled with the existing ones, and the coupling is accomplished without detachment of the cu... | 09/13/1977 |
| 4037187 | Metal clad insulating circuit breaker A casing is divided and disassembled into the desired numbers of solid state insulating material units each of which is aligned with the others, with tapered end portion of the solid state insulating material units, and insulating bushing means, such as r... | 07/19/1977 |
| 3991367 | Detection of potential on high-voltage transmission lines A suspension insulator used on the tower of a high-voltage transmission line has a capacitive voltage dividing pickup plate placed thereon to capacitively pick up a low-power indication of the potential carried by the line. In order to detect the potentia... | 11/09/1976 |
