Typewriting machines – Key-board or key lever-actuating mechanism – Key lever or space-bar mounting structure
Patent
1992-04-27
1996-06-18
Burr, Edgar S.
Typewriting machines
Key-board or key lever-actuating mechanism
Key lever or space-bar mounting structure
400713, B41J 2912
Patent
active
055271227
ABSTRACT:
This invention is a protective cover for a keyboard or other control panel with attachment means, using different options as preferred for specific equipment. The cover can be separately obtained and secured to the housing or chassis of various equipment. The purpose of the cover is to allow owners of equipment with control panels and keyboards, including touch pads, to separately purchase a protective cover that can be secured to the equipment. The cover is for protection against inadvertent key or button depression, settling of dust, spattering of liquid, and other adverse effects.
The invention consists of (1) a lid, also referred to as a plate in this disclosure, and (2) a frame that is attachable to the housing of keyboards by adhesive regions on the bottom of the frame or other means as described in this patent. Adhesive regions can consist of peel-off adhesive, suction cups, stick-on VELCRO regions, snaps, and the like. Other means include spring-loaded clamps that fit snugly onto the chassis. The plate can be permanently hinged to the frame of the cover or it can be removable at the hinge by snapping it in and out of the frame, or can be otherwise detaching.
REFERENCES:
patent: 1218282 (1917-03-01), Kurowski
patent: 3920979 (1975-11-01), Kilby et al.
patent: 4456315 (1984-06-01), Markley et al.
patent: 4546947 (1985-10-01), Gesten
patent: 4768021 (1988-08-01), Ferraro
patent: 4786120 (1988-11-01), Sparks et al.
patent: 4834330 (1989-05-01), Swillinger
Prince et al. "Data Terminal Keyboard and Dust Cover", Oct. 1981 Technical Digest, No. 64, p. 45.
Burr Edgar S.
Hendricks Glenna
Nguyen Anthony H.
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