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US 4,357,697 AGranted
Disk complex for reducing electrostatic forces on a record disk
OwnerSoo W. Yiinventor
Life of this patent
Estimating the term…
Abstract
A disk complex for reducing the electrostatic forces on a record disk used for storing information, in which two recording surfaces are carried by an intermediate support member, and electrostatic force reducers are coupled with the surfaces and the support member.
Claims10
A disk complex for reducing the electrostatic forces on a record disk used for storing audio information, comprising:
- a conductive support member;
- two opposed spaced vinyl plastic surface members each carried by said support member for the recording, storing and releasing of audio information contained in electrical signals, said vinyl plastic members being in the form of a disk which substantially conforms to the surface of said support member, each said disk being provided with at least one circumferentially spaced aperture inwardly of the outer periphery thereof extending from the outer facing surfaces thereof inwardly to the top surface of said support member;
- electrostatic force reducing means coupled with said surface members and said support member, said support member and said surface members together forming a sandwich construction;
- a pair of conductive labels positioned on the outer facing surfaces of said plastic members and overlying said force reducing means to thereby couple said labels to said support member coupled with said support member;
- and,
- said electrostatic force reducing means includes a conductive substance received in each of said spaced apertures for filling thereof to provide for a uniform and continuous outer surface on the outer facing surface of said vinyl plastic members, and said conductive support member and conductive labels together have a capacitative effect for reducing electrostatic forces on the outwardly facing surfaces of the surface members.
3 more elements
A disk complex for reducing the electrostatic forces on a record disk used for storing information, comprising:
- a support member;
- surface means carried by said support member for storing information;
- electrostatic force reducing means coupled with said surface means and said support member;
- said support member being an insulator;
- and
- the portion of said support member coupled with and facing said surface means being wetted by a conductive liquid.
3 more elements
Dependencies are inferred from the claim text.