Claims
- 1. A linear-to-rotary motion converting means for converting linear motion of a first member in a pressurized environment to rotary motion of a second member in a non-pressurized environment comprising:
- a nonmagnetic, closed tube adapted to be in fluid communication with the pressurized environment:
- rod means having a first end adapted to be secured to said first member and a second end within said tube so that said rod means moves in said tube responsive to linear movement of said first member;
- first magnetic means secured to said second end of said rod means so as to be movable with said rod means in said tube;
- second magnetic means surrounding said tube and magnetically coupled to said first magnetic means so as to be movable therewith: and
- a linear-to-rotary motion converter coupled to said second magnetic means whereby linear movement of said second magnetic means produces a rotary output from said linear to rotary motion converter.
- 2. The linear-to-rotary motion converting means of claim 1 wherein said linear-to-rotary motion converter includes a pair of spaced sprockets connected by chain means with one of said sprockets producing said rotary output.
- 3. The linear-to-rotary motion converting means of claim 2 wherein said rotary output drives a rotary potentiometer.
Parent Case Info
This is a division of application Ser. No. 092,827 filed Sept. 3, 1987 and now U.S. Pat. No. 4,743,170.
US Referenced Citations (3)
Foreign Referenced Citations (1)
Number |
Date |
Country |
58-217857 |
Dec 1983 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
92827 |
Sep 1987 |
|