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US 8,561,644 B2Granted
Pulsator apparatus and method of operation
AssigneeTechnologies Holdings Corp.
InventorsNicholas E. Schultz, Gary C. Steingraber, Leon Cramer
Life of this patent
Estimating the term…
Abstract
A pulsator comprises a valve chamber and an armature arranged in the valve chamber. An electrically powered coil at least partially surrounds the valve chamber and generates a magnetic flux. A magnetic pole piece is arranged in the valve chamber and has a metal surface. The armature has a first end nearest the magnetic pole piece and a second end. The first end of the armature has a metal surface and the second end has a first sealing surface and a second sealing surface.
Claims18
A pulsator, comprising:
- a first valve chamber;
- a first electrically powered coil at least partially surrounding the first valve chamber and operable to generate a first magnetic flux;
- a first magnetic pole piece arranged in the valve chamber and having a metal surface;
- a first armature arranged in the valve chamber and having a first end nearest the magnetic pole piece and a second end, wherein the first end of the first armature has a metal surface and the second end has a first sealing surface and a second sealing surface, wherein the first sealing surface of the first armature is a separate component from the second sealing surface of the first armature;
- a first input port configured to admit atmospheric air to the first valve chamber;
- a second valve chamber;
- a second electrically powered coil at least partially surrounding the second valve chamber and operable to generate a second magnetic flux;
- a second magnetic pole piece arranged in the second valve chamber and having a metal surface;
- a second armature arranged in the second valve chamber and having a first end nearest the second magnetic pole piece and a second end, wherein the first end of the second armature has a metal surface and the second end has a first sealing surface and a second sealing surface;
- a second input port configured to admit atmospheric air to the second valve chamber;
- and
- a third input port coupled to a vacuum line.
9 more elements
A pulsator, comprising:
- a valve chamber;
- an electrically powered coil at least partially surrounding the valve chamber and operable to generate a magnetic flux;
- a magnetic pole piece arranged in the valve chamber and having a metal surface;
- and
- an armature arranged in the valve chamber and having a first end nearest the magnetic pole piece and a second end, wherein the first end of the armature has a metal surface and the second end has a first sealing surface and a second sealing surface, wherein the first sealing surface of the armature is a separate component from the second sealing surface of the armature;
- wherein:
- in a first mode of operation, the coil activates to generate a magnetic flux which causes the armature to move into a first position in the valve chamber in response to a magnetic attraction between the metal surface of the pole piece and the metal surface of the armature, wherein the first sealing surface of the armature creates a seal;
- and
- in a second mode of operation, the coil deactivates such that the armature moves into a second position in the valve chamber, wherein the second sealing surface of the armature creates a seal.
6 more elements
Dependencies are inferred from the claim text.