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US 7,428,909 B2Granted
Fixtures for trapping condensation
AssigneeLasco Fittings, Inc.
InventorsDonald J. Klein, Robert P. Scifres
Life of this patent
Estimating the term…
Abstract
Fixtures for trapping condensation, molds, methods of making fixtures and air conditioning systems are disclosed. The fixtures have a hollow body and at least one curved portion in which condensation may be trapped. The mold incorporates at least one mold core that may be removed from the curved portion of the molded fixture after molding.
Claims71
A condensation trap, comprising
- a hollow body comprising:
- a first portion having a first opening at a first end, a first outer periphery about the first end, and a first inner periphery defining a first flow passage having a curved, first central axis with a constant radius of curvature, wherein the first outer periphery has a first cylindrical outer surface adapted to accept a cylindrical tube fitted over the first end of the first portion, the first cylindrical outer surface having a first centerline that is straight;
- and
- a second portion having a second opening and a second inner periphery defining a second flow passage, the second portion having a second central axis,
- wherein the first flow passage joins the second flow passage such that the first opening is in fluid communication with the second opening,
- wherein the second central axis intersects the first central axis at an acute angle, and
- wherein, with the first centerline oriented generally horizontal, a reservoir is formed at the intersection of the first flow passage and the second flow passage that is adapted to retain a volume of liquid at a liquid level that prevents the passage of air from the first opening to the second opening.
4 more elements
A condensation trap, comprising:
- a body with a hollow interior, the body having a first end having a first opening and a second end having a second opening, with the hollow interior comprising the first and second openings in fluid communication with each other;
- and
- wherein an outer periphery of the body at the first end comprises a first cylindrical outer surface to accept a cylindrical tube fitted over the first end of the body, the first cylindrical outer surface having a first central axis that is straight;
- wherein an inner periphery of the hollow interior of the body at the first end comprises a first section of a first toroid having a first central axis of rotation having a first radius;
- wherein an outer periphery of the body at the second end comprises a second outer surface to accept a cylindrical tube fitted over the second end of the body, the second outer surface having a second central axis that is straight;
- wherein an inner periphery of the hollow interior the body at the second end comprises a second section of a second toroid having a second central axis of rotation having a second radius;
- wherein the first central axis of the first cylindrical outer surface is substantially parallel to the second central axis of the second outer surface, with the first and second openings facing in opposite directions;
- wherein, with the first and second central axes oriented horizontally, the first radius of the first central axis of rotation of the first toroid curves downward from the first end and the second radius of the second central axis of rotation of the second toroid curves downward from the second end in such a manner that a vessel is formed for holding liquid in the hollow interior.
5 more elements
A condensation trap, comprising:
- a body with a hollow interior, the body having a first end having a first opening and a second end having a second opening, with the hollow interior comprising the first and second openings in fluid communication with each other;
- and
- wherein an outer periphery of the body at the first end comprises a first cylindrical outer surface to accept a cylindrical tube fitted over the first end of the body, the first cylindrical outer surface having a first central axis;
- wherein an inner periphery of the hollow interior of the body at the first end comprises a section of a toroid having a central axis of rotation having a radius;
- wherein an outer periphery of the body at the second end comprises a second outer surface to accept a cylindrical tube fitted over the second end of the body, the second outer surface having a second central axis;
- wherein the first central axis of the first cylindrical outer surface is approximately perpendicular to the second central axis of the second outer surface;
- wherein, with the first central axis oriented horizontally and the second central axis oriented vertically, the radius of the central axis of rotation of the toroid curves downward from the first end in such a manner that a vessel is formed for holding liquid in the hollow interior.
4 more elements
Dependencies are inferred from the claim text.