Compensating tensioning mechanism for film valve

Details Compensating tensioning mechanism for film valve Compensating tensioning mechanism for film valve

1998-06-23

1999-11-16

Nguyen, John Q.

Winding, tensioning, or guiding

Tension control or brake

Take-up coil drive control

2425381, 242334, 25112911, 251901, 62244, 236 493, 185 40R, B65H 2318, F16K 3104, B60H 132, F24F 700

Patent

active

059842253

ABSTRACT:
A roller drive mechanism for an automotive HVAC film valve belt includes a single motor type drive that automatically compensates for continually differing belt wind up and wind off rates, while maintaining at least a minimal belt tension, and without the necessity for precise adjustment. A central motor drive shaft is split between a fixed end and a yieldable, slidable end. The two ends can turn at the same rate from the single motor, but the ability of the second end to slide back and forth allows one roller to match its belt handling rate to the other roller automatically, while the always stretched spring maintains a certain minimum belt tension, while also accommodating adjustment tolerances.

REFERENCES:
patent: 4438781 (1984-03-01), Brenholt
patent: 5160115 (1992-11-01), Ito et al.
patent: 5243830 (1993-09-01), Ito et al.

Affiliated with

Also associated with

Rating

Compensating tensioning mechanism for film valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compensating tensioning mechanism for film valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compensating tensioning mechanism for film valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1313190