Reinforcing structure for conduit; and method
AssigneeDonaldson Company, Inc.
InventorsSteven S. Gieseke, Thomas A. Boeckermann, Larry R. Nepsund
Life of this patent
Estimating the term…
Abstract
Air conduit construction is provided. The construction generally comprises a conduit section having an open end; and, a support member positioned inside of the conduit section open end. In preferred arrangements, the conduit construction has two open ends, with a reinforcing member in each of the open ends. In preferred arrangements, the reinforcing member includes a friction fit construction on an outer surface thereof. In typical and preferred embodiments, the friction fit construction includes a bead on the reinforcing member. A method of preparing air conduit constructions is also provided.
Claims9
An air conduit construction comprising:
- (a) a conduit section being of a cylindrical construction having first and second open ends at opposite ends of said cylindrical construction;
- said conduit section having an inner cylindrical surface extending between said first and second open ends;
- and
- (b) a support member positioned inside of said conduit section along a longitudinal extension between said first and second open ends;
- said support member having a circular cross-section along a complete length of said longitudinal extension between said first and second open ends;
- said support member including a friction fit construction comprising an annular seal bead on an outer surface thereof;
- said annular seal bead being located along said longitudinal extension between said first and second open ends;
- and said annular seal bead being adapted for engagement with said inner cylindrical surface.
An air conduit construction comprising:
- (a) a conduit section being of a cylindrical construction having opposite first and second open ends;
- said conduit section having an inner cylindrical surface extending between said first and second open ends;
- and,
- (b) a support member positioned inside of said conduit section first open end and extending along a longitudinal extension between said first and second open ends;
- (i) said support member including a friction fit construction on an outer surface thereof, for engagement with said inner cylindrical surface of said conduit section;
- and
- (ii) said support member comprising a circular ring along a complete length of said longitudinal extension between said first and second open ends;
- said circular ring having an outer surface, an inner surface, an inner edge and a central portion;
- said support member inner surface having a tapered section, in thickness, extending between said central portion and said inner edge;
- said tapered section being located along said longitudinal extension between said first and second open ends.
Dependencies are inferred from the claim text.