U.S. patent number D344,793 [Application Number 07/877,022] was granted by the patent office on 1994-03-01 for filter unit for intake air of helicopter turbine engines.
Invention is credited to Lindsay D. Rose.
United States Patent |
D344,793 |
Rose |
March 1, 1994 |
Filter unit for intake air of helicopter turbine engines
Claims
The ornamental design for a filter unit for intake air of
helicopter turbine engines, as shown and described.
Inventors: |
Rose; Lindsay D. (Moorabbin,
Victoria, AU) |
Appl.
No.: |
07/877,022 |
Filed: |
May 1, 1992 |
Foreign Application Priority Data
Current U.S.
Class: |
D23/365 |
Field of
Search: |
;55/306 ;422/123,124
;239/57,58,55 ;454/231 ;312/236,213 ;D23/365 |
Foreign Patent Documents
|
|
|
|
|
|
|
151698 |
|
Nov 1981 |
|
DE |
|
715112 |
|
Feb 1980 |
|
SU |
|
Primary Examiner: Lucas; Susan J.
Assistant Examiner: Lichtenstein; Lisa
Attorney, Agent or Firm: Kinney & Lange
Description
FIG. 1 is a perspective view from top, front and left side showing
my new design for a filter unit for intake air of helicopter
turbine engines;
FIG. 2 is a side elevational view from the left side thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a side elevational view from the right side thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a top plan view thereof.
The back view thereof is devoid of ornamentation and forms no part
of my inventive design.
* * * * *