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US 2020/0260927 A1Published application
Bleed valve such as for a surface cleaning apparatus
AssigneeOmachron Intellectual Property Inc.
InventorWayne Ernest Conrad
Life of this patent
Estimating the term…
Abstract
A bleed valve is selectively opened and closed due to a pressure differential between across an arcuate spring member.
Claims20
A surface cleaning apparatus comprising:
- (a) an airflow path extending from a dirty air inlet to a clean air outlet, the airflow path having an interior and a direction of flow;
- (b) an air treatment member and a fan and motor assembly provided in the airflow path;
- (c) the airflow path having a bleed air inlet, the bleed air inlet extending between a location exterior to the airflow path and the interior of the airflow path, the bleed air inlet comprising an opening in a wall of the apparatus;
- and,
- (d) a bleed valve selectively opening and closing the bleed air inlet due to a pressure differential between the interior of the airflow path at a location of the bleed air inlet and the location exterior to the airflow path, the bleed valve comprising an arcuate spring member operable between a closed configuration in which the spring member is in a closed arcuate configuration and abuts the opening, and an open arcuate configuration in which the spring member is in an open arcuate configuration and is spaced from the opening.
2 more elements
A surface cleaning apparatus comprising:
- (a) an airflow path extending from a dirty air inlet to a clean air outlet, the airflow path having an interior and a direction of flow;
- (b) an air treatment member and a fan and motor assembly provided in the airflow path;
- (c) the airflow path having a bleed air inlet, the bleed air inlet extending between a location exterior to the airflow path and the interior of the airflow path, the bleed air inlet comprising an opening in a wall of the apparatus;
- and,
- (d) a bleed valve selectively opening and closing the bleed air inlet due to a pressure differential between the interior of the airflow path at a location of the bleed air inlet and the location exterior to the airflow path, the bleed valve comprising at least first and second abutting cantilevered spring members operable between a closed configuration in which the first spring member abuts the opening, and an open arcuate configuration in which the first and second spring members are in a curved configuration and are spaced from the opening.
2 more elements
A surface cleaning apparatus comprising:
- (a) an airflow path extending from a dirty air inlet to a clean air outlet, the airflow path having an interior and a direction of flow;
- (b) an air treatment member and a fan and motor assembly provided in the airflow path;
- (c) the airflow path having a bleed air inlet, the bleed air inlet extending between a location exterior to the airflow path and the interior of the airflow path, the bleed air inlet comprising an opening in a wall of the apparatus;
- and,
- (d) a bleed valve selectively opening and closing the bleed air inlet due to a pressure differential between the interior of the airflow path at a location of the bleed air inlet and the location exterior to the airflow path, the bleed valve comprising a cantilevered spring member operable between a closed configuration in which the spring member abuts the opening, and an open arcuate configuration in which the spring member is in a curved configuration and is spaced from the opening, wherein a sealing member encases at least a portion of the spring member.
2 more elements
Dependencies are inferred from the claim text.