Pipe joints or couplings – With assembly means or feature – Handle or handwheel for rotary engagement
Patent
1997-07-16
1999-05-11
Nicholson, Eric K.
Pipe joints or couplings
With assembly means or feature
Handle or handwheel for rotary engagement
2851361, 285210, 74543, 267153, 292240, F16L5/00
Patent
active
059019859
ABSTRACT:
A duct hose coupling device for attaching a hose to a ductwork structure. The device selectively attaches and detaches the hose without use of fastening hardware. Attachment of a hose via the duct hose coupling device allows air to be efficiently forced into or withdrawn from the ductwork structure. The device retains its high efficiency over prolonged periods of usage by isolating critical moving components from exposure to contaminants and unwanted debris.
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Binda Greg
Holmbo Dwight N.
Nicholson Eric K.
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