Two-stage pump

Follow

Information

Patent Grant
D285447

References
Source

Patent Number
D285,447
Date Filed
Monday, December 5, 1983
41 years ago
Date Issued
Tuesday, September 2, 1986
38 years ago

Inventors
- Carl G. Dudeck
- Richard A. Lametto
Original Assignees
- The Nash Engineering Company
Examiners
- Burke; Wallace R.
- Wilder; Lynn

US Classifications
- D15 - Machines not elsewhere specified
Field of Search
- US
- D15 7
- D15 9
- 417 63
- 417 54
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a two-stage pump, as shown.

US Referenced Citations (4)

Number	Name	Date	Kind
D110935	Voorhees et al.	Aug 1938
D202145	Schroeder et al.	Aug 1965
D229236	Doolin	Nov 1973
4257747	Goldman	Mar 1981

Non-Patent Literature Citations (1)

Entry
Nash.RTM. Multistage Vacuum Pumps, Bulletin No. 499-C, Copyright 1974 The Nash Engineering Company.