Pump with function of measuring fixed amount

• US 20050072808A1
• Filed: 11/12/2002
• Published: 04/07/2005
• Est. Priority Date: 11/30/2001
• Status: Abandoned Application

• Current Assignee: Sachiko Kitamura
• Original Assignee: Sachiko Kitamura
• Inventors: Kitamura, Sachiko
• Application Number:
  US10/497,080
• Publication Number:
  US 20050072808A1
• Time in Patent Office: Days
• US Class Current: 222/309
• CPC Class Codes: B05B 11/1001 Piston pumps B05B11/1087, B05B11/1088, B05B11/109 take precedence
• CPC Class Codes: B05B 11/1008 by adjusting or modifying the pump end-of-dispensing-stroke position

Abstract

A push-down liquid pump that forms a part of a lid body of a liquid container and pumps up a fixed amount of liquid from inside of a container main body by push-down operation. A stopper for limiting the push-down amount of the push-down portion is arranged movably in a space provided for the movement of the pump push-down portion in such a way that the movement amount of the stopper is adjustable by moving the stopper in a position between a maximum movement amount position and immobile position. This enables a fixed amount of liquid corresponding to the push-down amount of the push-down portion to be dispensed.

Claims

1. A pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable, which is a push-down liquid pump that forms a part of a lid body of a liquid container and dispenses and discharges a fixed amount of liquid from inside of a container main body by a push-down operation of a pump head, wherein the pump comprises

a pump head that lowers when the pump head is pushed down,

a movable member that lowers together with the pump head, and

a means for limiting the push-down amount of the pump head, which is provided for the pump head and the movable member in a movable manner so that the amount to be pushed down of the pump head is adjustable between zero and the maximum, whereby a fixed amount corresponding to the push-down amount of the pump head is measured, dispensed and discharged.

2. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 1, wherein the push-down amount limiting means of the pump head has a freely extensible means which makes the lower end of the pump head extensible downward, and the pump head push-down amount is adjusted by the freely extensible means in a range from zero to the maximum according to the amount of lowering of the lower end of the pump head.

3. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 1, wherein the push-down amount limiting means of the pump head comprises a stopper, which is provided in a movable manner for a connecting tube that connects the pump head and a piston inside a pump cylinder, so that the stopper limits an entering amount of the connecting tube into the pump cylinder when the pump head is pushed down and adjusts the pump head push-down amount in a range from zero to the maximum by means of the stopper position according to the entering amount of the connecting tube.

4. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to anyone of claims 1 to 3, wherein the push-down amount adjusting mechanism of the push-down amount limiting means of the pump head enables stepless adjustments by screwing the movable stopper and its supporting member together.

5. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 4, wherein the supporting member rotatably supports the stopper and, on its outer circumference at a desired portion, is provided with engageable portions at arbitrarily divided positions of the outer circumference, and the stopper is provided with an engaging means that engages with the engageable portions, whereby a moderate feeling is given to the rotation of the stopper.

6. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 1 to 3, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that each of the movable stopper and its supporting member is provided with an alternative of a comb-shaped groove or a projection that engages with the groove and moves within the groove in a reciprocal manner, and the projection is engaged with the comb-shaped groove at a projection fixing position to move the stopper in a stepped manner for adjustment.

7. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 1 to 3, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that each of the movable stopper and its supporting member is provided with an alternative of a projecting thread or a thread groove row that engages with the projecting thread in a reciprocal manner, and the projecting thread is engaged with an arbitrary thread groove of the thread groove row to move the stopper in a stepped manner for adjustment.

8. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 1 to 3, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that the stopper supporting member is provided with a thread groove row and the movable stopper is provided with an engaging means that engages with the thread groove row, and the engaging means is engaged with an arbitrary thread groove of the thread groove row to move the stopper in a stepped manner for adjustment.

9. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 8, wherein the stopper is formed into a plate shape and the engaging means is a notch that fits the cross sectional shape of the thread groove bottom portion, and the stopper is inserted into and engaged with an arbitrary thread groove.

10. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 8, wherein the stopper is formed into an annular shape from an elastic material and constructed so that portions opposite each other of the annular shape sandwich a cross sectional shape of the thread groove bottom portion in normal conditions, and the engaging means elastically deforms the stopper to make and release the engagement with the thread groove.

11. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 8, wherein the engaging means is structured so as to pinch the cross sectional shape of the thread groove bottom portion in a movable manner.

12. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable in any one of claims 1 to 3, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that an engaging hole row is made in the stopper supporting member, an engaging means that engages with any one engaging hole of the engaging hole row is provided for the movable stopper, and the engaging means is engaged with an arbitrary engaging hole of the engaging hole row, whereby the stopper is moved in a stepped manner for adjustment.

13. A pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable, which is a push-down liquid pump that forms a part of a lid body of a liquid container and dispenses and discharges a fixed amount of liquid from inside of a container main body by a push-down operation of a pump head, wherein the pump comprises

a pump head,

a fixing member to be fixed to a container main body, which does not move with the pump head when the pump head is pushed down,

and a means for limiting the push-down amount of the pump head, which is provided for the fixing member in a movable manner so that the pump head push-down amount is adjustable between zero and the maximum, whereby a fixed amount according to the push-down amount of the pump head is measured, dispensed and discharged.

14. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 13, wherein in the push-down amount limiting means of the pump head comprises

a cylindrical body, which is to stand up from an opening of a container main body and

a stopper, which is movable upward and downward by using the cylindrical body as a shaft so that the push-down amount of the pump head is adjusted in a range from zero to the maximum according to the position of the stopper.

15. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 13, wherein the push-down amount limiting means of the pump head comprises

a lid body of a container main body;

and

a stopper, which is movable upward and downward by using the lid body as a shaft so that the push-down amount of the pump head is adjusted in a range from zero to the maximum according to the position of the stopper.

16. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 13, wherein in the push-down amount limiting means of the pump head comprises

a cylindrical portion, which is to be provided at a center of an opening of a container main body;

and

a stopper, which is pivotally supported by the cylindrical portion so that the push-down amount of the pump head is adjusted in a range from zero to the maximum according to the position of the stopper.

17. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 13 to 16, wherein the push-down amount adjusting mechanism of the push-down amount limiting means of the pump head enables stepless adjustments by screwing the movable stopper and its supporting member together.

18. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 17, wherein the supporting member rotatably supports the stopper and, on its outer circumference at a desired portion, is provided with engageable portions at arbitrarily divided positions of the outer circumference, and the stopper is provided with an engaging means that engages with the engageable portions, whereby a moderate feeling is given to the rotation of the stopper.

19. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 13 to 16, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that each of the movable stopper and its supporting member is provided with an alternative of a comb-shaped groove or a projection that engages with the groove and moves within the groove in a reciprocal manner, and the projection is engaged with the comb-shaped groove at a projection fixing position to move the stopper in a stepped manner for adjustment.

20. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 13 to 16, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that each of the movable stopper and its supporting member is provided with an alternative of a projecting thread or a thread groove row that engages with the projecting thread in a reciprocal manner, and the projecting thread is engaged with an arbitrary thread groove of the thread groove row to move the stopper in a stepped manner for adjustment.

21. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to any one of claims 13 to 16, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that the stopper supporting member is provided with a thread groove row and the movable stopper is provided with an engaging means that engages with the thread groove row, and the engaging means is engaged with an arbitrary thread groove of the thread groove row to move the stopper in a stepped manner for adjustment.

22. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 21, wherein the stopper is formed into a plate shape and the engaging means is a notch that fits the cross sectional shape of the thread groove bottom portion, and the stopper is inserted into and engaged with an arbitrary thread groove.

23. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 21, wherein the stopper is formed into an annular shape from an elastic material and constructed so that portions opposite each other of the annular shape sandwich a cross sectional shape of the thread groove bottom portion in normal conditions, and the engaging means elastically deforms the stopper to make and release the engagement with the thread groove.

24. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable according to claim 21, wherein the engaging means is structured so as to pinch the cross sectional shape of the thread groove bottom portion in a movable manner.

25. The pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable in any one of claims 13 to 16, wherein the push-down amount limiting means of the pump head has such a push-down amount adjusting mechanism that an engaging hole row is made in the stopper supporting member, an engaging means that engages with any one engaging hole of the engaging hole row is provided for the movable stopper, and the engaging means is engaged with an arbitrary engaging hole of the engaging hole row, whereby the stopper is moved in a stepped manner for adjustment.

26. A pump with a function of measuring a fixed amount in a way that the amount to be discharged is adjustable in a stepped manner, which is a push-down liquid pump that forms a part of a lid body of a liquid container and pumps up a fixed amount of liquid from the inside of the container main body in response to push-down operation, and is provided with a stopper that limits the push-down amount of the push-down portion provided in a movable manner in a movement space of the pump push-down portion so that the movement amount is adjustable in a stepped manner between a maximum movement amount and an immobile position to measure and dispense a fixed amount corresponding to the push-down amount of the push-down portion, wherein

the stopper is a projection projectedly provided on an outer wall of a tubular member enveloping a connecting tube that connects a pump head and a piston,

the pump head is provided with a plurality of vertical grooves having different lengths, each of which is engageable with the projection to allow the projection to slide vertically, and

when the pump head is pushed down upon fitting the positions of the projection and desired one of the vertical grooves by rotating the pump head, the pump head is pushed down with a stroke limited according to the length of the vertical groove.

27. A pump with a function for measuring a fixed amount in a way that the amount to be discharged is adjustable in a stepped manner, which is a push-down liquid pump that forms a part of a lid body of a liquid container and pumps up a fixed amount of liquid from the inside of the container main body in response to push-down operation, and is provided with a stopper that limits the push-down amount of the push-down portion provided in a movable manner in a movement space of the pump push-down portion so that the movement amount is adjustable in a stepped manner between a maximum movement amount and an immobile position to measure and dispense a fixed amount corresponding to the push-down amount of the push-down portion, wherein

the stopper is a projection projectedly provided on an outer wall of a pump head outer cylinder,

a cylindrical body into which the pump head is to be inserted inserted is provided on a container lid body,

the cylindrical body is provided with a plurality of vertical grooves having different lengths, each of which is engageable with the projection to allow the projection to slide vertically, and

when the pump head is pushed down upon fitting the positions of the projection and desired one of the vertical grooves by rotating the pump head, the pump head is pushed down with a stroke limited according to the length of the vertical groove.

28. A pump with a function for measuring a fixed amount in a way that the amount to be discharged is adjusted in a stepped manner, which is a push-down liquid pump that forms a part of a lid body of a liquid container and pumps up a fixed amount of liquid from the inside of the container main body in response to push-down operation, and is provided with a stopper that limits the push-down amount of the push-down portion provided in a movable manner in a movement space of the pump push-down portion so that the movement amount is adjustable in a stepped manner between a maximum movement amount and an immobile position to measure and dispense a fixed amount corresponding to the push-down amount of the push-down portion, wherein

the stopper is a projection projectedly provided on an inner wall of a pump head outer cylinder,

a cylindrical body which is to bee inserted inside the pump head is provided on a container lid body,

the cylindrical body is provided with a plurality of vertical grooves having different lengths, each of which is engageable with the projection to allow the projection to slide vertically, and

when the pump head is pushed down upon fitting the positions of the projection and desired one of the vertical grooves by rotating the pump head, the pump head is pushed down with a stroke limited according to the length of the vertical groove.

29. A pump with a function for measuring a fixed amount in a way that the amount to be discharged is adjusted in a stepped manner, which is a push-down liquid pump that forms a part of a lid body of a liquid container and pumps up a fixed amount of liquid from the inside of the container main body in response to push-down operation, and is provided with a stopper that limits the push-down amount of the push-down portion provided in a movable manner in a movement space of the pump push-down portion so that the movement amount is adjustable in a stepped manner between a maximum movement amount and an immobile position to measure and dispense a fixed amount corresponding to the push-down amount of the push-down portion, wherein

the stopper is a projection projectedly provided on an outer wall of a pump head inner cylinder,

a cylindrical body which is to be inserted inside the pump head is provided on a container lid body,

the cylindrical body is provided with a plurality of vertical grooves having different lengths, each of which is engageable with the projection to allow the projection to slide vertically, and

when the pump head is pushed down upon fitting the positions of the projection and a desired vertical groove by rotating the pump head, the pump head is pushed down with a stroke limited according to the length of the vertical groove.