The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1983
Filed:
Mar. 31, 1981
Harold T Wright, San Carlos, CA (US);
Disctron, Milpitas, CA (US);
Abstract
A latch interlock mechanism for an access door through which a magnetic disc cartridge is inserted into a disc-drive assembly. The interlock prevents the access door from being opened while a magnetic head is being loaded or is loaded onto the disc. A pivot latch cooperating with the access door is coupled to a rigid rod which moves along its length. The rod is coupled to the head lift mechanism which loads and unloads the magnetic heads. The push rod is coupled to the pivot latch by means of a coil spring co-axially mounted on the push rod with the end of the spring furthest from the first end of the push rod fixedly attached to the push rod. The other end of the coil spring interacts with the pivot latch. The second end of the push rod is coupled to an actuator element of the head lift mechanism by means of a pivoted lever. During a head load cycle, the movement of the actuator element is coupled to the push rod to engage the latch before the heads are lowered onto the surfaces of the disc. A small button located at the tip of the first end of the push rod may be pressed through an opening in the disc-drive assembly to manually unload the heads from the surface of the disc and to disengage the pivot latch from the access door.