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US 8,800,966 B2Granted
Drain plug
AssigneeDrainzit, LLC
InventorRobert Cordes
Life of this patent
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Abstract
A drain plug for selectively draining a source of fluid is described, and which includes first, second and third portions which provide coaxially aligned fluid passageways which extend therethrough, and wherein the second portion is moveable relative to the first and third portions between a first position which substantially occludes, and prevents the passage of fluid through the coaxial aligned fluid passageways, and a second position where fluid is allowed to pass therethrough and may be collected for disposal as required.
Claims11
A drain plug for selectively draining a source of fluid, comprising:
- a first portion having a main body which releasably mates with a reservoir enclosing a source of fluid to be drained, and which defines a first fluid passageway, and an annular shaped passageway, and wherein the main body of the first portion has a first end which screw threadably mates with the reservoir, and an opposite, second end, and wherein the first fluid passageway extends between the first and second ends thereof, and wherein the first fluid passageway which is defined by the first portion of the drain plug has a first section, having a predetermined diametral dimension, and a second section having a predetermined diametral dimension greater than the first section, and wherein the first section of the first fluid passageway has a screw threaded region formed therein, and wherein a spring seat is defined between the first and second sections of the first fluid passageway, and wherein the main body of the first portion of the drain plug has a guidance pin passageway formed in the second end of the main body thereof, and wherein the guidance pin passageway has a first, and an opposite second end;
- a second portion which telescopes at least partially within the annular shaped passageway defined by the main body of the first portion, and which further defines a second fluid passageway which is coaxially aligned with the first fluid passageway;
- and wherein the second portion is slideably moveable from a first position which inhibits the source of fluid from passing out through the coaxially aligned first, and second fluid passageways, and a second position, where the second portion permits the source of fluid to pass through the coaxially aligned first, and second fluid passageways;
- and
- a third portion which is telescopingly received within the second fluid passageway, and which is releasably affixed to the first portion, and wherein the third portion defines, at least in part the annular shaped passageway of the first portion, and wherein the third portion defines a third fluid passageway which is coaxially aligned with the first and second fluid passageways, and wherein the second portion is slideably moveable from the first position which inhibits the source of fluid from passing out through the coaxially aligned first, second and third passageways, and the second position, where the second portion permits the source of fluid to pass through the coaxially aligned first, second, and third fluid passageways, and wherein a coil spring is received within the first fluid passageway, and which is further positioned between the first end of the second portion of the drain plug, and is located in resting receipt on the spring seat, and wherein the coil spring biasingly urges the second portion of the drain plug in the direction of the first position, and wherein the first end of the second portion is telescopingly received, at least in part, within the coil spring.
2 more elements
A drain plug for selectively draining a source of fluid, comprising:
- a first portion of the drain plug having a main body with a first end which releasably mates with a reservoir enclosing a source of fluid to be drained, and an opposite second end, and wherein a first fluid passageway extends from the first to the second end, and wherein the first fluid passageway which is defined by the first portion of the drain plug has a first section having a predetermined diametral dimension, and a second section having a predetermined diametral dimension greater than the first section, and wherein the first section of the first fluid passageway has a screw threaded region formed therein, and wherein a spring seat is defined between the first and second sections of the first fluid passageway, and wherein the main body of the first portion of the drain plug has a guidance pin passageway formed in the second end of the main body thereof, and wherein the guidance pin passageway has a first, and an opposite, second end, and wherein the first end of the drain plug releasably, threadably mates with the reservoir enclosing the source of fluid to be drained;
- a second portion of the drain plug having a main body with a first end which telescopes, at least partially, within the first fluid passageway which is defined by the first portion, and which is slideably movable within the first fluid passageway, and wherein the second portion further has a second end which extends coaxially, outwardly, relative to the second end of the first portion of the drain plug, and wherein a second fluid passageway extends between the first and second ends of the second portion, and which is further coaxially aligned with the first fluid passageway;
- a coil spring received within the first fluid passageway, and which is positioned between the first end of the second portion of the drain plug, and the main body of the first portion, and wherein the coil spring biasingly urges the second portion of the drain plug in the direction of the first position, and wherein the coil spring rests on the spring seat, and wherein the first end of the second portion of the drain plug is telescopingly received, at least in part, within the coil spring;
- a third portion of the drain plug which has a main body that has a first end which is telescopingly received, at least in part, within the coaxially aligned first and second fluid passageways as defined by the first and second drain plug portions, and wherein the first end of the third portion is releasably affixed to the first portion of the drain plug, and wherein the main body of the third portion has an opposite, second end, and wherein a third fluid passageway extends between the first and second ends of the third portion, and wherein a fluid discharge orifice is formed at a location adjacent to the second end of the main body of the third portion, and wherein the second portion of the drain plug is slideably moveable from a first position, where the second portion is located in covering, occluding relation relative to the fluid discharge orifice, and which inhibits the source of the fluid from passing out through the coaxially aligned first, second, and third fluid passageways, and a second position where the second portion is moved to a non-occluding position relative to the fluid discharge orifice, and which further permits the source of the fluid to pass through the coaxially aligned first, second, and third fluid passageways, and be released through the fluid discharge orifice, and wherein the first end of the third portion of the drain plug threadably engages the threaded region of the first section of the first fluid passageway;
- and
- a pair of sealing members mounted on the third portion of the drain plug, and which individually sealingly engage the second portion of the drain plug, and wherein the respective sealing members inhibit the movement of the fluid to be drained from moving between the second and third portions of the drain plug, and wherein the pair of sealing members comprise a first sealing member which is located between the first and second ends of the third portion, and a second sealing member which is located at the second end of the third portion of the drain plug.
3 more elements
Dependencies are inferred from the claim text.