Suckback drain valve for a liquid jet blower
AssigneeYoshino Kogyosho Co., Ltd.
InventorsTatsuo Tubaki, Yoshiyuki Kakuta, Takao Kishi
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Abstract
This invention relates to a liquid jet blower that operates as an aerosol sprayer without using any pressurized gas. This invention is intended to provide a liquid jet blower which is free from clogging of the nozzle and undesired flows of the liquid outside its container. To that end, structure is provided for relieving any excessive pressure within its pressure chamber and transferring any remaining liquid to a small chamber specifically arranged within the blower.
Claims11
A liquid jet blower having an aerosol type injection valve comprising:
- a valve box having a bottom end in communication with a source of pressurized liquid, a top end provided with a circumferential annular gasket, and a table surrounded by an elastic peripheral wall located between the top and the bottom end;
- an injection pipe having a first end connected to an injection button, a second end sealingly engageable with the elastic peripheral wall, and a center portion having a communicating hole selectively engageable with the gasket;
- and a spring for pushing the second end of the injection pipe and the table apart.
An injection valve comprising:
- a valve box coupleable to a source of pressurized liquid;
- an injection pipe slidingly engageable with the valve box;
- and
- means for removing excess liquid from the injection pipe when the injection pipe moves from a dispensing position to a non-dispensing position.
A liquid jet blower having an aerosol type injection valve comprising a valve box having an opening at the bottom in communication with a source of pressurized liquid located below it, an upper opening provided with a circumferential annular gasket at the top and a table surrounded by an elastic peripheral wall at the center, an injection pipe having a thinned pipe portion with a small diameter running through the gasket of the valve box and projecting outward from the gasket and an enlarged lower pipe portion with a large diameter having its bottom abutting the elastic peripheral wall, said injection pipe being biased upward by a pusher spring by way of the enlarged pipe portion so that a communicating hole bored through its side wall is blocked by the gasket and a small chamber is formed between said enlarged pipe portion and said table for receiving any remaining liquid, and an injection button having a nozzle connected to and communicating with the upper portion of said injection pipe.
Dependencies are inferred from the claim text.