Method and apparatus for assembling and sealing bathtub overflow and waste water ports
DC CAFC
First Claim
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1. An overflow assembly adapted for interconnection to a bathtub, which has a bottom, side walls, end walls, and an overflow port in one end wall, comprising:
- an overflow pipe with an elbow portion defining an upper end portion and a lower end portion, said upper end portion having an outer end defining an inlet and having threads on an outer surface thereof;
a lip extending radially outwardly from said outer surface of the overflow pipe between said elbow portion and said upper end portion and being spaced from the inlet;
a sealing element associated with said outer end that closes said inlet to fluid flow;
a nut element with a threaded portion that is compatible with said threads associated with said inlet for mounting said nut element to said upper end portion, said nut element having a plurality of lugs extending radially from said nut element wherein said nut element and said plurality of lugs constitute a single-piece unit; and
a cap detachably interconnected to at least one of said plurality of lugs and covering the nut.
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Abstract
A bathtub drainage and overflow system assembly is a combination of a one-piece overflow pipe and a waste water drain assembly connected by a T-shaped elbow. The one-piece overflow pipe has an inverted L-shape having an elbow portion. A lip extends radially outwardly from an outer surface of the overflow pipe to engage an outer surface of the bathtub end wall around the bathtub overflow port. A thin diaphragm is used to close the inlet to fluid flow. The waste water drain has an L-shaped drain pipe having an annular flange resting on a bottom wall of the bathtub.
117 Citations
17 Claims
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1. An overflow assembly adapted for interconnection to a bathtub, which has a bottom, side walls, end walls, and an overflow port in one end wall, comprising:
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an overflow pipe with an elbow portion defining an upper end portion and a lower end portion, said upper end portion having an outer end defining an inlet and having threads on an outer surface thereof; a lip extending radially outwardly from said outer surface of the overflow pipe between said elbow portion and said upper end portion and being spaced from the inlet; a sealing element associated with said outer end that closes said inlet to fluid flow; a nut element with a threaded portion that is compatible with said threads associated with said inlet for mounting said nut element to said upper end portion, said nut element having a plurality of lugs extending radially from said nut element wherein said nut element and said plurality of lugs constitute a single-piece unit; and a cap detachably interconnected to at least one of said plurality of lugs and covering the nut. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An overflow assembly adapted for interconnection to a bathtub, which has a bottom, side walls, end walls, and an overflow port in one end wall, comprising:
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an overflow pipe with an elbow portion defining an upper end portion and a lower end portion, said upper end portion having an outer end defining an inlet, said upper end portion having threads on an outer surface thereof; a lip extending radially outwardly from said outer surface of the overflow pipe between said elbow portion and said upper end portion and being spaced from said inlet; a means for sealing associated with said outer end that closes said inlet to fluid flow; a nut element with a threaded portion that is compatible with said threads of said overflow pipe for threadingly mounting said nut element to said upper end portion, said nut element having a series of retention lugs spaced about a longitudinal axis defined by said nut element, wherein there is a gap between each retention lug; and a cap detachably interconnected to at least one of said series of retention lugs. - View Dependent Claims (8, 9, 10, 11)
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12. An overflow assembly adapted for interconnection to a bathtub, which has a bottom, side walls, end walls, and an overflow port in one end wall, comprising:
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an overflow pipe with an elbow portion defining an upper end portion and a lower end portion, said upper end portion having an outer end defining an inlet, said upper end having threads on an outer surface thereof; a lip extending radially outwardly from said outer surface of the overflow pipe between said elbow portion and said upper end portion and being spaced from said inlet; a nut element with a threaded portion that is compatible with said threads of said overflow pipe, said nut element having an outer periphery with a series of radially extending lugs that detachably engage an inner surface of a cap that fits over said nut. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification
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Litigation Data
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Current AssigneeWCM Industries Incorporated
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Original AssigneeWCM Industries Incorporated
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InventorsBall, William T
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Primary Examiner(s)BAKER, LORI LYNN
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Application NumberUS10/732,726Publication NumberTime in Patent Office3,254 DaysField of Search467/9, 468/0, 469/4US Class Current4/680CPC Class CodesA01C 11/003 for aquatic plants; for pla...B25B 13/48 for special purposesE03C 1/22 Outlet devices mounted in b...E03C 1/24 Overflow devices for basins...E03F 3/046 Open sewage channels
