Combined check and control valve

Follow

Information

Patent Grant
D335918

References
Source

Patent Number
D335,918
Date Filed
Friday, July 13, 1990
33 years ago
Date Issued
Tuesday, May 25, 1993
31 years ago

Inventors
- Leif Glansk
Original Assignees
- Tour & Andersson AB
Examiners
- Largen; James R.
Agents
- Davis, Bujold & Streck

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 233-237
- D23 244-249
- 137 881
- 137 886
- 137 887
- 251 3353
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for combined check and control valve, as shown.

Priority Claims (1)

Number	Date	Country	Kind
900074	Jan 1990	SEX

US Referenced Citations (9)

Number	Name	Date	Kind
D284989	Fetty	Aug 1986
296984	Mapes	Apr 1884
D301915	Fisher et al.	Jun 1989
769901	Hall	Sep 1904
1720938	Veenschoten	Jul 1929
4078728	Nordeen	Mar 1978
4232695	Roberge	Nov 1980
4237920	Norman	Dec 1980
4270727	Norman	Jun 1981