| D253365 |
Ball valve
|
|
| Patent Drawings: | |
| Inventor: |
Nyberg |
| Date Issued: |
November 6, 1979 |
| Application: |
05/790,143 |
| Filed: |
April 22, 1977 |
| Inventors: |
Nyberg; Gustav B. (Saffle, SE)
|
| Assignee: |
AB Kalle-Regulatorer (Saffle, SE) |
| Primary Examiner: |
Largen; James R. |
| Assistant Examiner: |
|
| Attorney Or Agent: |
Faber; Sidney G. |
| U.S. Class: |
D23/247 |
| Field Of Search: |
D23/19; D23/20; D23/21; D23/22; 251/298; 251/305; 251/315; 251/366; 251/367; 251/306 |
| International Class: |
|
| U.S Patent Documents: |
3091428; 3129920; 3173650; 3206164; 3241808; 3254873; 3329395; 3338551; 3958595 |
| Foreign Patent Documents: |
|
| Other References: |
|
|
| Abstract: |
|
| Claim: |
The ornamental design for a ball valve, as shown and described. |
| Description: |
FIG. 1 is a front perspective view of a ball valve showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a side elevational view thereof, the opposite side being the same as the side shown;
FIG. 4 is a top plan view thereof; and
FIG. 5 is a bottom plan view thereof.
* * * * * |
