Angelo Ralph Chiarenza

US Patent:

43276105, May 4, 1982

Filed:

Jun 2, 1980

Appl. No.:

6/155449

Inventors:

Angelo Chiarenza - West Babylon NY

International Classification:

B25B 1352

US Classification:

81 64

Abstract:

An open end ratchet wrench has a head portion which includes a slot into which a plurality of cantilever spring segments project. The ends of the cantilever spring segments engage and turn the flat surfaces of a nut when the wrench is turned in a tightening direction. When the wrench is turned in the opposite direction, the cantilever springs flex to override the corners of the nut and then spring back to engage adjacent flat surfaces of the nut.

US Patent:

41755650, Nov 27, 1979

Filed:

Jun 22, 1977

Appl. No.:

5/808724

Inventors:

Angelo R. Chiarenza - Islip NY
Charles M. Weiss - New York NY

Assignee:

Oratronics, Inc. - New York NY

International Classification:

A61N 120

US Classification:

433 32

Abstract:

An electroconductive dental implant is permanently imbedded in the jawbone of the subject, with a portion thereof extending into the oral cavity which is connected to a current source to act as a cathode. A second electroconductive electrode is non-permanently affixed to the skin of the subject, preferably at the ear, and connected to the source to act as an anode. The direct current applied to the implant and the electrode is preferably regulated so as to maintain a substantially constant current level throughout the application thereof. A continuous current, preferably of 200 microamperes or less is applied intermittently for relatively short periods not exceeding approximately one hour in duration. In this manner, osteogenic activity in the bone structure adjacent to the contours of the dental implant is stimulated in order to increase the rate of the normal healing process.