Back to results
US 2019/0168975 A1Published application
Method for adjustably restricting air flow and apparatus therefor
OwnerStephen B. Maguireinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for air flow limiting comprise a vertically oriented tube, a sail assembly positioned in the tube and moveable therewithin responsively to air flow through the tube to limit rate of air flow through the tube and halt air flow through the tube upon air flow rate through the tube exceeding a preselected value, and a moveable stop for adjustably changing the length of travel of the sail assembly thereby changing the maximum amount of air flow.
Claims5
An adjustable air flow regulator, consisting of:
- a. a tube;
- b. a tubular segment within the tube being movable in the axial direction;
- c. a plate extending at least partially across the interior of the tube, for contacting the movable tubular segment and blocking air passage therethrough;
- d. a sail connected to the moveable tubular segment and being movable therewith within the tube;
- and
- e. a solenoid connector to the plate and positioned such that a piston position of the solenoid contacts the moveable tubular segment to define an upper limit of segment travel.
3 more elements
Adjustable air flow limiting apparatus, comprising:
- a. a tube;
- b. a second tube movable along and within the first tube;
- c. a guide within the first tube for restraining the second tube to coaxial movement within and relative to the first tube;
- d. a sail within the first tube, connected to the second tube and being movable responsively to air flow within the first tube;
- e. a moveable stop within and connected to the first tube for adjustably limiting axial travel of the second tube.
2 more elements
Dependencies are inferred from the claim text.