Valves and valve actuation – Valve actuator is inlet or outlet – Plural motions of valve
Patent
1998-08-03
2000-09-05
Chambers, A. Michael
Valves and valve actuation
Valve actuator is inlet or outlet
Plural motions of valve
251144, 137327, F16K 3100
Patent
active
061130729
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a valve for liquids and in particular to a drain plug or access port for liquids held in a container.
In many situations in which liquid is stored in a container, or used as a coolant or lubricant such as oil in the sump of a car, or in circumstances where it is necessary to gain access to the liquid for testing or analysis purposes, an access port having a openable valve is necessary. However the existing ports are, usually, either expensive or messy in discharging the liquid.
SUMMARY OF THE INVENTION
The present invention seeks to ameliorate these disadvantages by providing an access port, adapted to allow access to liquid held in a container, comprising:
a port member having an internal bore therethrough;
a valve member adapted to move along said internal bore between a first sealing position where said internal bore is sealed and a second open position where liquid from said container is free to flow through said bore;
a first connection means located on said valve member;
a spigot member having an internal bore communicating between a first opening located adjacent a first end of said spigot member and a second opening located adjacent a second end of the spigot member;
a second connection means located at said first end of said spigot member, and adapted to engage with said first connection means,
whereby in use with said second connection means engaged with said first connection, said spigot member is moved inwardly relative to the container forcing said valve member to its first open position and positioning said first opening of said spigot in communication with the liquid in the container, allowing the liquid to flow from said container out of the second opening of the spigot.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described by way of example with reference to the accompanying drawings in which:
FIG. 1 illustrates a cross section through a schematic representation of a port member and valve according to one embodiment of the present invention;
FIG. 2 illustrates a schematic representation of a spigot member, according to one embodiment of the present invention;
FIG. 3 illustrates a cross section through a schematic representation of the port member and valve of FIG. 1 engaged with the spigot member of FIG. 2, with the valve in its closed position; and
FIG. 4 illustrates a cross section through a schematic representation of the port member and valve of FIG. 1 engaged with the spigot member of FIG. 2, with the valve in its fully open position.
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the present invention is shown in the accompanying figures and is suitable for using as a draining port for draining the sump of a car of the spent oil.
As shown in FIG. 1 a port member (1) is threaded into the base (2) of the sump (3). The port member (1) could be fitted to the sump wall (2) in any suitable way and could also be integral with the wall of the container. The port member (1) has a threaded bore (4) therethrough, with a valve member (5) having its external threaded surface (6) engaging the threaded bore (4).
Located on the sump side of the threaded bore (4) is the tapered valve seat (7) against which the valve seal (8) abuts, compressing the o-ring (9) against the valve seat (7), to effect a liquid tight seal. At the other end of the valve member (5) is a connection means (10), to engage to the spigot member (11), shown in FIG. 2.
The spigot member (11) is tubular having an internal bore (12) and comprises a threaded section (13) located at one end and a hose engaging section (14) located at the other end. The bore (12) having an opening (15) located in the threaded section (13) and an outlet (16) located at the hose engaging section (14). It is desirable that the opening (15) is located in the side wall of the threaded section (13) to allow for non restricted flow.
As shown in FIG. 3 the spigot member has a connection means (17), which locks into the connection means (10) of the valve member (5) whi
REFERENCES:
patent: 3948481 (1976-04-01), Pollock
patent: 4314689 (1982-02-01), Wilson
patent: 4807847 (1989-02-01), Martz
patent: 5096158 (1992-03-01), Burdick et al.
patent: 5297778 (1994-03-01), Morris et al.
patent: 5333837 (1994-08-01), Reese
Chambers A. Michael
McShane Thomas L.
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