Impeller for refrigerant compressors

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Information

Patent Grant
D355253

References
Source

Patent Number
D355,253
Date Filed
Thursday, February 25, 1993
31 years ago
Date Issued
Tuesday, February 7, 1995
29 years ago

Inventors
Original Assignees
- Northern Research & Engineering Corporation
Examiners
- Lichtenstein; Lisa P.
Agents
- Minns; Michael H.

US Classifications
- D23 - Environmental heating and cooling
- D15 - Machines not elsewhere specified
Field of Search
- US
- D23 377
- D23 381
- D23 382
- D23 411
- D15 5
- 362 96
- 362 294
- 416 186 R
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for an impeller for refrigerant compressors, as shown and described.

US Referenced Citations (4)

Number	Name	Date	Kind
1873974	Meyer	Aug 1932
4236871	Hirst et al.	Dec 1980
4428717	Catterfeld	Jan 1984
5192193	Cooper et al.	Mar 1993

Foreign Referenced Citations (1)

Number	Date	Country
635926	Mar 1962	ITX