John Michael Trenary
Engineers at Bowers Brk Dr, Lilburn, GA
License number
Colorado 10693
Issued Date
Sep 18, 1971
Renew Date
Oct 12, 1993
Expiration Date
Oct 12, 1993
Type
Professional Engineer
Address
Address
5225 Bowers Brook Dr, Lilburn, GA 30247
Professional information
Removable Head Mechanism For Automatic Cleaning Device
US Patent:
4827550, May 9, 1989
Filed:
May 4, 1988
Appl. No.:
7/191859
Inventors:
Cleve A. Graham - Simi Valley CA
John Trenary - Lilburn GA
John Trenary - Lilburn GA
Assignee:
Dental Research Corporation - Tucker GA
International Classification:
A46B 1302
US Classification:
15 22R
Abstract:
A cleaning apparatus is provided for transmitting powered motion to an operating member having a removable head mechanism contained within a hollow housing. A motorized base, including a base drive shaft, is locked onto a head drive shaft of the removable head mechanism in response to axial movement of the base drive shaft into the housing. The head mechanism comprises a collet having outwardly radiating arms and inwardly extending feet at the lower end of the collet and a rack at the upper end. The rack engages rotatable gears containing tufts of filaments. The base drive shaft defines a shoulder and a tip at the upper end which is received into the collet. A sleeve, retained within the head mechanism by the inner dimensions of the hollow housing, receives the outwardly radiating arms and compresses them over the tip of the base causing the feet to engage the shoulder. Once locked onto the head mechanism, the axial movement of the base drive shaft causes rotation and counter-rotation of the gears and the tufts mounted within the gears. Unlocking of the shafts is accomplished by pulling the head mechanism away from the base.