(1) Connecting element for coupling a dentist's drill and hoses with cooling water and compressed air as well as (2) and (3) accessories therefor

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Description

FIG. 1 shows a connecting element for coupling a dentist's drill and hoses with cooling water and compressed air.

FIG. 2 shows an accessory therefor without light source.

FIG. 3 shows an accessory therefor with light source.

Referenced Cited
U.S. Patent Documents
3120706 February 1964 Turchi et al.
3333320 April 1967 Black
3830579 August 1974 Roe
4014098 March 29, 1977 Scrivo et al.
4332562 June 1, 1982 Schuss
4348180 September 7, 1982 Schuss
4353697 October 12, 1982 Nakanishi
Patent History
Patent number: D277232
Type: Grant
Filed: Nov 24, 1981
Date of Patent: Jan 15, 1985
Inventor: Peter L. Rasch (2760 M.ang.lov)
Primary Examiner: Bernard Ansher
Law Firm: Fleit, Jacobson, Cohn & Price
Application Number: 6/324,638
Classifications
Current U.S. Class: D24/16