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:
Dec. 02, 1997
Filed:
Jun. 05, 1996
Noah M Roth, Memphis, TN (US);
James Cohen, Memphis, TN (US);
Other;
Abstract
The device presented herein is a Disposable Adjustable Flow Prophy Angle (DAFPA) attachment with an integral feed mechanism to expel a predetermined quantity of abrasive medium into a polish cup. During use, the high speed rotation of the drive shaft driving the angled attachment will propel the abrasive medium into the flow channel, via a propellant screw. A sealing ring is incorporated to protect against any backflow of the abrasive medium. A significant feature of the device is the ability to continually adjust the flow of abrasive medium deposited into the polish cup by a calibrated flow adjustment knob, providing the advantage of selecting a predetermined flow rate, to accommodate the needs of the health care professional. The current procedure is more time consuming and less sanitary. In the proposed system the abrasive medium is fed continuously or on demand from an internal reservoir. The invention would apply to both disposable and metallic right angle units. The unit will be delivered with a charge of abrasive medium sufficient for a single use. The self contained device described herein will be more convenient, sanitary, and provide a financial savings from reduced shipping cost and waste disposal. The abrasive medium and prophy angle will be packaged, shipped, used, and disposed of in a single self contained unit. It should be noted that the embodiment shown and described herein is not inclusive of the invention and is simply one embodiment used for descriptive purposes.