Thomas C Albert

US Patent:

43302793, May 18, 1982

Filed:

Jan 7, 1980

Appl. No.:

6/109761

Inventors:

Donald J. Heil - Lake Villa IL
Thomas W. Albert - Bartlett IL

Assignee:

American Hospital Supply Corporation - Evanston IL

International Classification:

A61C 112

US Classification:

433 82

Abstract:

A dental handpiece having an improved water/air spray system including a pair of substantially parallel tubes, one for water and the other for chip air, extending through the handle of the handpiece and terminating in a nozzle chamber of oval cross section. The tubes are generally cylindrical but are partially deformed at their distal ends, such deformation constituting a flattening of adjacent wall portions of the respective tubes. Such adjacent wall portions are disposed in contiguous relation and are cut away for a limited distance at the discharge end of the tube assembly to define the unitary nozzle chamber. The chamber has an oval discharge orifice for directing an elliptical spray pattern towards the tip of the dental bur. At the opposite end of the handpiece, the handle is equipped with a plug terminating in an external end face. Tubular extensions project from that end face for conveying air to the drive air and chip air passages.

US Patent:

43157440, Feb 16, 1982

Filed:

Jan 3, 1980

Appl. No.:

6/109395

Inventors:

Thomas W. Albert - Bartlett IL

International Classification:

A61C 708

US Classification:

433126

Abstract:

A chuck wrench for dental handpieces in which the wrench has a unitary handle that may be easily gripped by a user for coupling the wrench to the head of a handpiece for adjusting the collet chuck thereof. The wrench includes a rigid shaft of non-circular cross section secured to the wrench body and at least one spring-loaded lug pin located alongside the shaft for keying the rotor of the handpiece to the handpiece cap.

US Patent:

D2637421, Apr 6, 1982

Filed:

Jan 3, 1980

Appl. No.:

6/109311

Inventors:

Thomas W. Albert - Bartlett IL

Assignee:

American Hospital Supply Corp. - Evanston IL

International Classification:

D2402

US Classification:

D24 12