Flexible and extendable spiral wound hose and method therefor
OwnerRaul Castroinventor
Life of this patent
Estimating the term…
Abstract
An expandable hose is provided formed of a sidewall formed of a spirally wound flexible member which defines an axial passageway surrounding a center axis of the formed hose. Both side edges of the flexible member in the spirally wound position are engaged with a cap member which provides a skeletal structure to maintain the axial passageway open and to bias the hose back to a collapsed length from the extended length. A fold formed in the spirally wound flexible member allows for increased distance between the two side edges and an increased maximum extended length. A telescopic pole engaged with the formed hose provides an improved extendable vacuuming tool.
Claims6
An expandable hose comprising:
- a sidewall defining an axial passageway surrounding a center axis of said hose, said passageway communicating between a first end and second end of said hose;
- said sidewall formed of a elongated substantially planar flexible member, said flexible member extending from a beginning end to a terminating end;
- said flexible member being spirally positioned around said center axis and having first side edge positioned a separation distance from a substantially parallel second side edge;
- a cap member, said cap member having two side edges extending between a first cap end and second cap end;
- said cap member spirally positioned around said center axis and having means for an engagement of said first side edge of said flexible member to said second side edge of said flexible member;
- said cap member engaged with said first side edge and said second side edge forming a circumferentially positioned skeletal structure;
- said circumferential skeletal structure forming a means for maintaining said sidewall distanced from said axis and maintaining an unobstructed communication of said axial passageway between said first end and said second end of said hose;
- said hose having a collapsed length with said two side edges of said cap member substantially adjacent to each other;
- folds formed in said planer flexible member with said hose in said collapsed length;
- said folds forming within said axial passage adjacent said sidewall;
- said hose extendable to variable lengths between said collapsed length and an expanded length;
- said hose in said expanded length having a cicumfrential spiral gap formed by said flexible member extending a separation distance between said first side edge and said second side edge of said cap member, said expanded length being a multiple of said collapsed length;
- and
- said expanded length being determinable by said separation distance.
Dependencies are inferred from the claim text.