Carl D Nelson

US Patent:

45031258, Mar 5, 1985

Filed:

Jun 5, 1981

Appl. No.:

6/270686

Inventors:

Carl W. Nelson - Santa Cruz CA
Michael B. Vye - Santa Cruz CA

Assignee:

Xebec, Inc. - San Jose CA

International Classification:

G11B 572

US Classification:

428408

Abstract:

A protective overcoating is disclosed for a magnetic alloy thin-film recording disc that includes a magnetic alloy film formed on a disc-shaped substrate or coated substrate. The protective overcoating is formed by first sputtering onto the magnetic medium an interfacial layer of titanium, and then sputtering onto the titanium a layer of carbon. The sputtered carbon provides wear-resisting lubricity, while the titanium interface promotes the adhesion of the sputtered carbon to the magnetic medium of the recording disc.

US Patent:

50793896, Jan 7, 1992

Filed:

Nov 5, 1990

Appl. No.:

7/610849

Inventors:

Carl A. Nelson - Santa Cruz CA

International Classification:

H02G 326

US Classification:

174 48

Abstract:

A wire guard coupler for shielding and retaining wires in buildings and the like comprises a first tapered cylindrical member having a tapered track member on a first side thereof and a longitudinal slot on a second side thereof. A second tapered cylindrical member is adapted to slideably fit with said first cylindrical member and has a tapered track member and a longitudinal slot correspondingly positioned with said track and slot on said first cylindrical member. In a preferred embodiment said first cylindrical member has a tang integral with said tapered track for locking said coupler in place and both cylinders are flared at a larger end thereof. The coupler is preferably manufactured by stamping and rolling sheet metal into the desired configuration.