Combined dental syringe, nozzles and control unit

- Hans Grohe GmbH & Co. KG
Description

FIG. 1 is a side perspective view of a combined dental syringe, nozzles and control unit showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an opposite side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a perspective view thereof, the dental syringe shown separately for clarity of illustration;

FIG. 8 is a side elevational view thereof;

FIG. 9 is a perspective view thereof, a nozzle shown separately for clarity of illustration.

Referenced Cited
U.S. Patent Documents
D243337 February 8, 1977 Goof
4770632 September 13, 1988 Ryder et al.
4952146 August 28, 1990 Doty
4957483 September 18, 1990 Gonser et al.
Other references
  • Gesund. Deshalb. Brochure--Friedrich Grohe.
Patent History
Patent number: D322670
Type: Grant
Filed: Jun 20, 1989
Date of Patent: Dec 24, 1991
Assignee: Hans Grohe GmbH & Co. KG
Inventors: Andreas Haug (Stuttgart), Thomas Schonherr (Stuttgart)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Eckert Seamans Cherin & Mellott
Application Number: 7/369,092