Distributor pump

Claim 2

A metering and dispensing pump comprising an elongated housing, cylinder means within said housing, port-containing means adjacent said cylinder means in said housing, said portcontaining means including at least two port bores, rotary valve means in said housing adjacent said port-containing means and adapted to alternately place each port bore in open communication with said cylinder means, said valve means having means adapted to connect said housing to a reciprocating powered member to reciprocally rotate said valve means, piston means within said cylinder means, and means associated with said cylinder and piston means adapted to adjustably seal the pump against leakage and to facilitate easy removal of said port-containing means and either or both said piston and cylinder means to vary the pump capacity.

Claim 3

A pump as in claim 1 wherein the piston means comprises a positive displacement piston of constant cross section, said cylinder having a larger cross section than said piston whereby said piston may be interchanged with a similar piston of different cross section.

Claim 4

A pump as in claim 2 wherein said port-containing means is a solid member having a first bore in communication with said cylinder means and said valve means whereby said cylinder means is constantly in communication with said valve means.

Claim 5

A pump as in claim 3 wherein said cylinder means includes a tube, said solid port-containing member having means receiving one end of said tube and said pump further including a second solid member on the other side of said tube and having means to receive said other end of the tube, said second solid member having a central passage slidingly occupied by said constant cross section piston and said two solid members and said piston may be replaced by similar components of a different size tube to vary the pump capacity.

Claim 6

A pump as in claim 4 wherein said means in each solid member receiving the ends of said tube consists of circular grooves in the surface of each member facing said tube, and sealing rings located in said grooves which receive the peripheral end edges of said tube.

Claim 7

A pump as in claim 4 wherein said tube is glass.

Claim 8

A pump as in claim 4 wherein said valve means is a rotatable member having a flat surface, said first solid member having a flat surface in sealing engagement with the flat surface of said valve means, said rotatable member having a generally V-shaped relieved area so positioned in said surface that the bottom of said V is in constant communication with said first bore in said first solid member, the remaining two bores in said first solid member in communication with its flat surface and so positioned thereon that as said valve surface rotates reciprocally the arms of said V alternately and respectively overlie the two ports.

Claim 9

A pump as in claim 7 wherein said rotatable valve member includes a second portion having a spring biased bayonet connection shaft for coupling the pump to a valve switching mechanism whereby said pump may be quickly disconnected and replaced by a pump of different capacity and also including valve driving members projecting beyond the end of the housing.

Claim 10

A pump as in claim 4 wherein said second solid member contains a pump priming means, said priming means adapted to place a source of suction in open communication with said cylinder means.

Claim 11

A pump as in claim 9 wherein said priming means comprises a threaded manually operable rotatable valve member, a threaded apeRture in said second solid member, a first passage in said valve member, a second passage in open communication with said cylinder and said aperture, gate means on the end of said valve member adapted to place said first and second passage means in communication whereby said cylinder may either be bled or suction applied thereto.

Claim 12

A pump as in claim 3 wherein said housing has a cut-away portion and said cylinder means is visible, said port containing means having at least two projecting nipples in communication with said two port bores.

Claim 13

A combination metering and dispensing pump and valve switching mechanism comprising an elongated housing, cylindrical chamber means within said housing, port-containing means adjacent said chamber means, said port-containing means including at least two port bores, a rotary valve means in said housing adjacent said port-containing means on the side opposite from said chamber means and adapted to alternately place each port bore in open communication with said chamber means, removable piston means within said chamber means, adjustable and removable means associated with said chamber and piston means to seal said pump against leakage and to facilitate removal of said piston means, port-containing means and said chamber means, reciprocally rotating valve driving means connected to said valve means and having at least one driving study projecting up beyond the end of said housing, a pump supporting block having reciprocal lever means adapted to engage said driving stud and operate said valve means upon reciprocation thereof, and means rigidly but detachably securing said housing to said block whereby said pump may be quickly detached from said block and replaced by a pump of different capacity.

Claim 14

A combination metering and dispensing pump and valve switching mechanism comprising an elongated housing, cylindrical chamber means within said housing, port-containing means adjacent said chamber means, said port-containing means including at least two port bores, a rotary valve means in said housing adjacent said port-containing means on the side opposite from said chamber means and adapted to alternately place each port bore in open communication with said chamber means, removable piston means within said chamber means, adjustable and removable means associated with said chamber and piston means to seal said pump against leakage and to facilitate removal of said piston means, port-containing means and said chamber means, reciprocally rotating valve driving means connected to said valve means and having at least one driving study projecting up beyond the end of said housing, a pump supporting block having reciprocal lever means adapted to engage said driving stud and operate said valve means upon reciprocation thereof, and means rigidly but detachably securing said housing to said block whereby said pump may be quickly detached from said block and replaced by a pump of different capacity.

Claim 15

The combination as in claim 12 wherein said housing is tubular.

Claim 16

The combination as in claim 12 wherein said block has a connection bore therein, said means securing the pump housing to said block comprising a spring biased bayonet locking shaft, said shaft having a spherical bearing which is attached to said valve driving means, said shaft also extending into said connection bore, removable means detachably locking said shaft in said bore to facilitate quick removal of said pump, a sleeve in said block surrounding a portion of said shaft and said lever means pivotally mounted on said sleeve whereby upon rotation of said lever, the driving stud is engaged and said valve means is caused to operate.

Claim 17

The combination of claim 14 wherein said lever means has at least one slot therein engaging said driving stud and a projection is located on one end of said lever and is adapted to engage a power assembly to reciprocate said lever.

Claim 18

The combination of claim 15 wherein said lever has a figure eight shaped slot on said pivotal mounting on said sleeve whereby said lever can be moved longitudinally to disengage said lever projection from the power assembly thus leaving the valve in one position and whereby the pump can be removed and replaced by a second pump while said power assembly is operative.

Claim 19

The combination of claim 12 wherein the piston means is a positive displacement piston of constant cross section.

Claim 20

A pump as in claim 17 wherein said port-containing means is a solid member having a first bore in communication with said chamber means and said valve means whereby said chamber means is constantly in communication with said valve means.

Claim 21

A pump as in claim 18 wherein said cylindrical chamber means includes a tube, a solid port-containing member having means receiving one end of said tube and said pump further including a second solid member on the other side of said tube and having means to receive said other end of the tube, said second solid member having a central passage slidingly occupied by said constant cross section piston, the arrangement being such that said tube, two solid members and said piston can be removed and interchanged with similar components to change the pump capacity by removing said adJustable sealing means.

Claim 22

A pump as in claim 19 wherein said means in each solid member receiving the ends of said tube consists of circular grooves in the surface of each member facing said tube, and sealing rings located in said grooves which receive the peripheral end edges of said tube.

Claim 23

A pump as in claim 19 wherein said tube is glass.

Claim 24

A pump as in claim 19 wherein said valve means is a rotatable member having a flat surface, said first solid member having a flat surface in sealing engagement with the flat surface of said rotatable manner, said rotatable member having a generally V-shaped relieved area so positioned in said surface that the bottom of said V is in constant communication with said first bore in said first solid member, the remaining two bores in said first solid member are in communication with its flat surface and so positioned thereon that as said valve surface rotates reciprocally the arms of said V alternately and respectively overlie the two ports.

Claim 25

A pump as in claim 22 wherein said rotatable member includes a second portion having a spring biased bayonet connection shaft for removably coupling the pump to a valve switching mechanism and valve driving members projecting beyond the end of the housing.

Claim 26

A pump as in claim 19 wherein said second solid member contains a pump priming means, said priming means adapted to place a source of suction in open communication with said tube.

Claim 27

A pump as in claim 24 wherein said priming means comprises a threaded manually operable rotatable valve member, a threaded aperture in said second solid member, a first passage in said valve member, a second passage in open communication with said cylinder and said aperture, gate means on the end of said valve member adapted to place said first and second passage means in communication whereby said tube may either be bled or suction applied thereto.

Claim 28

The combination of a pump supporting means having a reciprocal lever means adapted to be driven by a power assembly and at least two interchangeably metering and dispensing pumps, each pump comprising an elongated housing, cylinder means within each housing, port-containing means adjacent said cylinder means in each said housing, each said port-containing means including at least two port bores, rotary valve means in said housings adjacent said port-containing means and adapted to alternately and respectively place each post bore in open communication with its respective cylinder means, each of said valve means having means adapted to connect its respective housing to said reciprocating lever means to reciprocally rotate each said valve means, piston means within each said cylinder means and quick disconnect means associated with each said pump for securing it to said pump supporting means, said pumps being of different volumetric capacity.

Claim 29

The combination of a pump supporting means having a reciprocal lever means adapted to be driven by a power assembly and at least two interchangeably metering and dispensing pumps, each pump comprising an elongated housing, cylinder means within each housing, port-containing means adjacent said cylinder means in each said housing, each said port-containing means including at least two port bores, rotary valve means in said housings adjacent said port-containing means and adapted to alternately and respectively place each post bore in open communication with its respective cylinder means, each of said valve means having means adapted to connect its respective housing to said reciprocating lever means to reciprocally rotate each said valve means, piston means within each said cylinder means and quick disconnect means associated with each said pump for securing it to said pump supporting means, said pumps being of different volumetric capacity.

Claim 30

The combination of claim 26 wherein said pump support means comprises a block and said quick disconnect means includes a connection bore in said block and spring biased bayonet locking shafts on said pumps, said shafts having spherical bearings which are attached to said valve means, said shafts adapted to extend up into said connection bore and a removable locking means adapted to secure said shafts in said bore.

Claim 31

The combination of claim 27 wherein said shafts have annularly relieved portions, said removable locking means comprising a tapered locking pin adapted to fit within a tapered locking bore within said block, said locking bore intersecting said connection bore so that the tapered end of said pin engages in said shaft relieved portion to removably lock the pump to said block.