Carlos L Estrada

US Patent:

50060260, Apr 9, 1991

Filed:

Jun 4, 1990

Appl. No.:

7/532898

Inventors:

Carlos I. Estrada - Alhambra CA

International Classification:

F16B 3300
F16B 4302

US Classification:

411369

Abstract:

An apparatus to collect metal particles as generated (galling) by a fastener connection to a workpiece, the fastener having a head and an axially forwardly extending shank, the combination comprising an O-ring about the head; the head forming an outwardly open annular recess spaced from the shank to receive the bulk of the O-ring; the O-ring projecting from the recess to engage the workpiece and form with the head a recess portion to receive and retain the particles.

US Patent:

43255701, Apr 20, 1982

Filed:

May 5, 1980

Appl. No.:

6/146484

Inventors:

Carlos I. Estrada - Los Angeles CA

International Classification:

B42D 1500
G06K 900

US Classification:

283 7

Abstract:

An identification system for individuals which provides a three point identification check at point-of-transaction to assure accuracy is disclosed. The system utilizes an individual fingerprint and an identifier which can be correlated to the fingerprint and to a listing of valid identifiers. In carrying out the system, an identification card is used which has the individual's fingerprint, a grid superimposed over the fingerprint, and an identifier printed thereon. The identifier is made-up of a series of individual designations or symbols, with each individual designation representing a selected fingerprint characteristic in respective squares of the grid. A data bank for individuals in the system contains a listing of valid identifiers for correlation and validation purposes. The identifier may be made up of alpha, numeric, or alpha numeric designations.