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Class Information
Number: 242/331.3
Name: Winding, tensioning, or guiding > Unwinding and rewinding a machine convertible information carrier (e.g., magnetic tape or photographic film) > Intermediate storage (e.g., low inertia bin) > Vacuum column > Carrier responsive control > Pneumatic pressure controller
Description: Subject matter wherein the regulator comprises a device sensitive to the air pressure or its flow to regulate the amount of carrier in the buffer zone.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6164583 |
Method and a unit for feeding a strip of sheet material |
Dec. 26, 2000 |
| 5775623 |
Low inertia apparatus and method for accumulating and applying tension to webs |
Jul. 7, 1998 |
| 4509007 |
Differential sensor measuring apparatus and method including sensor compensator circuitry |
Apr. 2, 1985 |
| 4456200 |
Pneumatic monitoring system for a magnetic tape drive |
Jun. 26, 1984 |
| 4406425 |
Method and apparatus for regulating webs transported in a reel-to-reel web handler |
Sep. 27, 1983 |
| 4399958 |
Tape loop position detector |
Aug. 23, 1983 |
| 4377251 |
Variable geometry vacuum column |
Mar. 22, 1983 |
| 4306689 |
Device for suppressing deviations in the output voltage of a pressure transducer in magnetic tape recorders caused by temperature fluctuations |
Dec. 22, 1981 |
| 4206890 |
Tape position sensing apparatus for magnetic tape drive |
Jun. 10, 1980 |
| 4065074 |
Reel servo control system |
Dec. 27, 1977 |
| 4063139 |
Tape drive motor control circuit |
Dec. 13, 1977 |
| 4025026 |
Apparatus and method for supplying constant tension material |
May. 24, 1977 |
| 3952968 |
Tape transport system |
Apr. 27, 1976 |
| 3948463 |
Web transport load and unload system |
Apr. 6, 1976 |
| 3943530 |
Tracing apparatus with suction paper control means |
Mar. 9, 1976 |
| 3940090 |
Vacuum column loading interlock |
Feb. 24, 1976 |
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