Abstract: An improved heavy-duty soft plastic golf club washer having the design of an old fashioned bath tub with a protected opening at the sloped front end (16) large enough to accommodate all sizes of golf club heads. Stabilized inside tub are three identical soft plastic brushes (12) (14) each with two slotted openings (34) in their base to allow passage of sediment into sump (36). The brushes are stabilized inside tub (10) by means of brush locks middle (38) as viewed in sectional FIG. 7, and brush locks rear (40) as viewed in sectional FIG. 8, and also by the bottom horizontal brush base. A removable lid (11) with front opening (17) and an open groove (18) to allow movement of golf club shafts. Tub has two rear support flanges (24) designed to fit a standard 4".times.4" post, over which the squared opening at rear of lid (11) also fits to cover tub. A rectangular lock plate (26) fits over rear of lid ( 11) and locks lid to post with two bolts (28) and two spring type cotter pins (30).

Abstract: A varistor with a body including an outer perimeter and substantially parallel opposed ends is surrounded on its outer perimeter by a collar formed from a high temperature polymer. Electrodes are fixed to the parallel opposed ends of the varistor such that they extend at least to the interior edge of the collar. A method of making the varistor is also described.

Abstract: A high voltage varistor for DC operation is manufactured by applying a glass collar to the perimeter of a sintered zinc oxide disc and heat treated between about 750.degree. C. and 400.degree. C. for several cycles in air. After heat treating, an organic resin or ceramic coating is applied to the glass collar to further insulate the varistor for high voltage application.

Abstract: Zinc oxide varistors having high resistance and exponent values are fabricated from a composition consisting essentially of the oxides of zinc, tin, bismuth, antimony, manganese, nickel, cobalt and boron. The composition does not contain barium oxide or silicon dioxide and still retains long term stability properties.

Abstract: A high voltage varistor for DC operation is manufactured by applying a glass collar to the perimeter of a sintered zinc oxide disc and heat treated between about 750.degree. C. and 400.degree. C. for several cycles in air. After heat treating, an organic resin or ceramic coating is applied to the glass collar to further insulate the varistor for high voltage application.

Abstract: A station arrester employing metal oxide varistors has varistors whose capacitances increase in a direction measured from the ground side of the arrester. An approximately uniform voltage distribution can be produced across the varistors when appropriately graded according to their positions in the varistor stack. In this configuration, the varistor disks located near the top or line end of the stack are not subjected to increased thermal stresses.

Abstract: Metal oxide varistors having a uniform wattage gradient across the varistor surfaces are provided by removing a thin layer of metal oxide surface material from the periphery of the varistors prior to applying an insulating collar and a silicone rubber encapsulation for the purpose of heat dissipation.

Abstract: A zinc oxide compound non-linear resistance surge arrester disc is provided with a glass anti-flashover collar having a relatively low fusing temperature and a relatively low coefficient of thermal expansion. The glass comprises the following constituents in proportion to one-another by weight:About 44.5% lead oxide,About 24.5% zinc oxide,About 20.5% boric oxide,About 4.5% silicon oxide, andAbout 6.0% cupric oxide.

Abstract: a zinc oxide compound nonlinear resistance overvoltage surge arrester disc is provided with a low temperature-curing ceramic antiflashover collar having relatively low coefficient of thermal expansion of about 4.5 .times. 10.sup.-6. The cured ceramic comprises the reaction product of a dry mixture of 80% by weight of mullite refractory filler and 20% kaolin suspending clay, together with 5% to 15% of the weight of the dry mixture of a binder consisting of equal weights of monoaluminum phosphate and concentrated phosphoric acid.Also disclosed is a method of application comprising the steps of applying the slurry to the perimeter of the disc and baking at a temperature below about 600.degree. Celsius.