Vacuum fitting connection
First Claim
1. A connection to connect a vacuum fitting to a corrugated hose having an inner diameter and corrugations on the outer surface, said connection comprising:
- an air tube defining an air channel and having a first opening, said air tube having an outer diameter corresponding to the inner diameter of the corrugated hose to create an air tight seal when the first opening of said air tube is inserted into the corrugated hose and the air channel is in vacuum communication with the corrugated hose;
a securing mechanism for releasably securing the vacuum fitting to the corrugated hose, said securing mechanism releasably engaging at least one corrugation of the corrugated hose to secure the vacuum fitting to the corrugated hose when the first opening of the air tube is inserted into the corrugated hose.
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Accused Products
Abstract
A vacuum connection to connect a vacuum fitting to a corrugated hose has an air tube which defines an air channel and fits into the corrugated pipe. The connecting has a securing mechanism to secure the air tube to the corrugated hose. The air tube has an outer diameter which corresponds to the inner diameter of the corrugated hose to create an air tight seal. The securing mechanism has radial projections which are radially biased towards the air tube and engage one or more of the corrugations of the corrugated pipe to secure the vacuum fitting to the corrugated pipe. When the corrugated pipe is to be removed from the fitting, the radial projections may be moved against the biasing force to disengage the corrugations and permit removal of the corrugated pipe from the fitting. The opening of the air tube has a chamfered edge to create a smooth transition from the air channel of the air tube to the corrugated pipe thereby decreasing vacuum loss, debris accumulation and excessive noise.
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Citations
25 Claims
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1. A connection to connect a vacuum fitting to a corrugated hose having an inner diameter and corrugations on the outer surface, said connection comprising:
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an air tube defining an air channel and having a first opening, said air tube having an outer diameter corresponding to the inner diameter of the corrugated hose to create an air tight seal when the first opening of said air tube is inserted into the corrugated hose and the air channel is in vacuum communication with the corrugated hose; a securing mechanism for releasably securing the vacuum fitting to the corrugated hose, said securing mechanism releasably engaging at least one corrugation of the corrugated hose to secure the vacuum fitting to the corrugated hose when the first opening of the air tube is inserted into the corrugated hose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A vacuum fitting for a central vacuum system, said fitting comprising:
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a first end having a first connection for a corrugated hose, said connection comprising; (a) an air tube defining an air channel and having a first opening, said air tube having an outer diameter corresponding to an inner diameter of the corrugated hose to create an air tight vacuum seal when the first opening of said air tube is inserted into the corrugated hose and the air channel is in vacuum communication with the corrugated hose; (b) a first securing mechanism for releasably securing the first end of the vacuum fitting to the corrugated hose, said first securing mechanism releasably engaging at least one corrugation of the corrugated hose to secure the first end of the vacuum fitting to the corrugated hose when the first opening of the air tube is inserted into the corrugated hose; a second end of the fitting, remote from the first end, and, in vacuum communication with the first end through the air channel of the air tube. - View Dependent Claims (25)
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Specification