US3650305A — Valve for dispensing measured quantities of liquid

Claim 1

Independent Claim 390 words

In a valve to dispense a predetermined volume of liquid from a reservoir into a receptacle, the combination of: a valve body having a series of radial ports including an upper inlet port for connection to the reservoir for gravity flow from the reservoir to the valve body, a lower dispensing port for connection to the receptacle for gravity flow from the valve to the receptacle, and a radial vent port between said inlet port and said dispensing port; a valve member mounted in the valve body for rotation therein; and a measuring chamber mounted on the valve member for rotation therewith, said valve member having a peripheral port with a passage in the valve member from the peripheral port to the measuring chamber, said valve member being rotatable between a first position and a second position, said peripheral port of the valve member registering with said upper inlet port of the valve body at said first position to place the reservoir in communication with the measuring chamber, said peripheral port of the valve member registering with the lower dispensing port of the valve body at said second position of the valve member to place the measuring chamber in communication with the receptacle, said peripheral port of the valve member communicates with said vent port to vent the measuring chamber in the course of the rotation of the valve member between its first and second positions but said vent part is positioned to only partially register with the peripheral port of the valve member to restrict the flow to the vent port to prevent violent release of gaseous fluid from the measuring chamber through the vent port and said measuring chamber being tilted relative to the axis of the valve member to assume a downwardly tilted attitude at said first position of the valve member for gravity flow from the reservoir into the entire volume of the measuring chamber and to assume an upwardly tilted attitude at said second position of the valve member for gravity flow from the entire volume of the measuring chamber into the receptacle, whereby the valve member may be rotated frOm its second position to its first position to completely fill the measuring chamber from the reservoir and then may be rotated to its second position to completely empty the measuring chamber into the receptable.

Claim 2

Dependent Claim 390 words

In a valve to dispense a predetermined volume of liquid from a reservoir into a receptacle, the combination of: a valve body having a series of radial ports including an upper inlet port for connection to the reservoir for gravity flow from the reservoir to the valve body, a lower dispensing port for connection to the receptacle for gravity flow from the valve to the receptacle, and a radial vent port between said inlet port and said dispensing port; a valve member mounted in the valve body for rotation therein; and a measuring chamber mounted on the valve member for rotation therewith, said valve member having a peripheral port with a passage in the valve member from the peripheral port to the measuring chamber, said valve member being rotatable between a first position and a second position, said peripheral port of the valve member registering with said upper inlet port of the valve body at said first position to place the reservoir in communication with the measuring chamber, said peripheral port of the valve member registering with the lower dispensing port of the valve body at said second position of the valve member to place the measuring chamber in communication with the receptacle, said peripheral port of the valve member communicates with said vent port to vent the measuring chamber in the course of the rotation of the valve member between its first and second positions but said vent part is positioned to only partially register with the peripheral port of the valve member to restrict the flow to the vent port to prevent violent release of gaseous fluid from the measuring chamber through the vent port and said measuring chamber being tilted relative to the axis of the valve member to assume a downwardly tilted attitude at said first position of the valve member for gravity flow from the reservoir into the entire volume of the measuring chamber and to assume an upwardly tilted attitude at said second position of the valve member for gravity flow from the entire volume of the measuring chamber into the receptacle, whereby the valve member may be rotated frOm its second position to its first position to completely fill the measuring chamber from the reservoir and then may be rotated to its second position to completely empty the measuring chamber into the receptable.

Claim 3

Dependent Claim 36 words

A combination as set forth in claim 1 which includes cooperating stop means on the valve body and valve member respectively to limit the rotation of the valve member at its first and second positions respectively.

Claim 4

Dependent Claim 120 words

A combination as set forth in claim 1 in which said valve body has a second radial vapor outlet port and said valve member has a second passage therein separate from the first mentioned passage, said second passage being in the form of a recess in the periphery of the valve member and being positioned in the valve member to place said dispensing passage in communication with said second vapor outlet port at a position of the valve member in its range of rotation, whereby said second vapor outlet may be placed in communication with the atmosphere and said valve member may be rotated to a position to release pressurized vapor from the receptacle into the second vapor outlet port.

Claim 5

Dependent Claim 54 words

A combination as set forth in claim 1 in which the valve body has a tapered bore for the valve member; in which said valve member is correspondingly tapered; and which includes spring means acting between the valve body and the valve member to bias the tapered valve member tightly into the tapered bore.

Claim 6

Dependent Claim 47 words

A combination as set forth in claim 4 in which said bore and said valve member taper towards one end of the valve member; and in which said spring is a coil spring surrounding the valve member under compression between the valve member and the valve body.

Claim 7

Dependent Claim 51 words

A combination as set forth in claim 1 in which said passage in the valve member is tilted relative to the axis of the valve member in the same respect as the measuring chamber to favor release of air from the measuring chamber to said peripheral port of the valve member.

Claim 8

Dependent Claim 62 words

A combination as set forth in claim 6 in which at said first position of the valve member, the tilted upper surface of said measuring chamber at the juncture of the passage of the valve member with the measuring chamber is at least approximately as low as the upper surface of the passage to avoid trapping gaseous fluid in the measuring chamber.

Claim 9

Dependent Claim 42 words

A combination as set forth in claim 7 in which at said first position of the valve member the tilted upper surface of the valve chamber is substantially in alignment with the tilted upper surface of said passage of the valve member.

Claim 10

Dependent Claim 246 words

In a valve having a first upper inlet port for connection to a source of liquid, a second port for communication with a measuring chamber and a third lower port for communication with a receptacle that confines a gaseous fluid under pressure and having a valve member with a passage therein to place said first upper inlet port in communication with the measuring chamber at a first position of the valve member for the purpose of filling the measuring chamber with liquid from the source and to place the measuring chamber in communication with the third lower port at a second position of the valve member to empty the measuring chamber through the third port, the improvement comprising: said measuring chamber being united with the valve member for rotation therewith, both said measuring chamber and said passage in the valve member being tilted at substantially the same angle relative to the axis of the valve member with both tilted relative to horizontal upward towards said upper inlet port at said first position of the valve member to favor release of gaseous fluid from the measuring chamber through the passage of the valve member to said upper inlet port, the range of rotation of the valve member from its first position to its second position being sufficient to reverse the tilt of both the measuring chamber and of the passage in the valve member to favor gravity flow of liquid from the measuring chamber into The receptacle.

Claim 11

Dependent Claim 246 words

In a valve having a first upper inlet port for connection to a source of liquid, a second port for communication with a measuring chamber and a third lower port for communication with a receptacle that confines a gaseous fluid under pressure and having a valve member with a passage therein to place said first upper inlet port in communication with the measuring chamber at a first position of the valve member for the purpose of filling the measuring chamber with liquid from the source and to place the measuring chamber in communication with the third lower port at a second position of the valve member to empty the measuring chamber through the third port, the improvement comprising: said measuring chamber being united with the valve member for rotation therewith, both said measuring chamber and said passage in the valve member being tilted at substantially the same angle relative to the axis of the valve member with both tilted relative to horizontal upward towards said upper inlet port at said first position of the valve member to favor release of gaseous fluid from the measuring chamber through the passage of the valve member to said upper inlet port, the range of rotation of the valve member from its first position to its second position being sufficient to reverse the tilt of both the measuring chamber and of the passage in the valve member to favor gravity flow of liquid from the measuring chamber into The receptacle.

Claim 12

Dependent Claim 221 words

In a valve to dispense a predetermined volume of liquid from a reservoir into a receptacle, the combination of: a valve body having a series of radial ports including an upper inlet port for connection to the reservoir for gravity flow from the reservoir into the valve body, a lower dispensing port for connection to the receptacle for gravity flow from the valve body to the receptacle, a first vent port intermediate said inlet port and said dispensing port, and a second vent port adjacent said dispensing port and an axial bore substantially centrally located therein such that said radial ports are each in communication therewith and a valve spool positioned within said axial bore for rotation therein having a radial port located so as to be alignable with said inlet and dispensing ports and partially alignable with said first vent port upon rotation of said valve spool, a passage therein extending substantially in the direction of the axis of said valve spool and in communication with said radial port but at a predetermined acute angle relative to the axis and said radial port, and a second position in which said dispensing port and said radial port are in substantial alignment and each other port is closed off from communication with any other port by the periphery of said valve spool.

Claim 13

Dependent Claim 221 words

In a valve to dispense a predetermined volume of liquid from a reservoir into a receptacle, the combination of: a valve body having a series of radial ports including an upper inlet port for connection to the reservoir for gravity flow from the reservoir into the valve body, a lower dispensing port for connection to the receptacle for gravity flow from the valve body to the receptacle, a first vent port intermediate said inlet port and said dispensing port, and a second vent port adjacent said dispensing port and an axial bore substantially centrally located therein such that said radial ports are each in communication therewith and a valve spool positioned within said axial bore for rotation therein having a radial port located so as to be alignable with said inlet and dispensing ports and partially alignable with said first vent port upon rotation of said valve spool, a passage therein extending substantially in the direction of the axis of said valve spool and in communication with said radial port but at a predetermined acute angle relative to the axis and said radial port, and a second position in which said dispensing port and said radial port are in substantial alignment and each other port is closed off from communication with any other port by the periphery of said valve spool.

Claim 14

Dependent Claim 46 words

The valve of claim 10 including measuring chamber means attached to said valve spool for rotation therewith in eccentric relationship relative thereto and in communication with said passage having an inner wall therein which is substantially coplanar with one portion of the periphery of said passage.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-03-21	1975-09-20	1976-03-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-03-21	1979-09-20	1980-03-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-03-21	1983-09-20	1984-03-21	$7700.00	Window Closed / Lapsed

Valve for dispensing measured quantities of liquid

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