Grounding system for static dissipative surfaces

Details Grounding system for static dissipative surfaces Grounding system for static dissipative surfaces

1988-03-14

1989-08-08

Hix, L. T.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

H05F 302

Patent

active

048558656

ABSTRACT:
A grounding system for grounding a static dissipative surface or an object that is static dissipative. A bolt is provided that extends through a hole or bore in the product wherein a static charge is to be grounded. A unique form of head is provided which is conical in shape and is adapted to fit into a conical counterbore to assure that connection is made for electrical conductivity. In one form, a fitting serving as a nut is utilized, which is preferably round and knurled, to provide ease of finger tightening. The outer surface of the conical head is knurled to assure an electrical grounding connection. In a second form of the invention, the head has a bore extending through it with a tapered counterbore which receives the tapered head of a bolt which comes flush with the flat upper surface of the head. Ordinary nuts and washer may be used on the stem of the bolt.

REFERENCES:
patent: 4456944 (1984-06-01), Rooklyn
patent: 4525398 (1985-06-01), Rooklyn
patent: 4702951 (1987-10-01), Rooklyn
patent: 4802056 (1989-01-01), Aronson
"Formica" Brand Anti-Static Laminate Grade-47/Hap, Formica Corporation publication, 1985.

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