Abstract: A depression head for pump mechanism increasing sealability on the discharge port and enabling favorable shutting of the liquid leakage, said depression head comprising a mounting cylinder assembly 3 having an upright sliding cylinder communicating with the interior of the stem 2; a body 4 adapted to be depressible relative to the mounting cylinder assembly 3 and having an attachment cylinder 11 fitted on the sliding cylinder, a valve chamber disposed above the attachment cylinder and defining a discharge port 12 opened its leading end; a valve member 5 forwardly biased to close the discharge port 19 and defining a passage between the discharge port and a communication port 12 which is also communicating with the interior of a pump cylinder; and a lever member 6 for coupling to the valve member 5 to open the discharge port in response to the depression of the head; wherein a resistive force against the depression of the body with respect to the stem is smaller than a resistive force against the depression of

Abstract: An accumulator-type liquid sprayer includes a piston arranged in a cylinder, a piston guide extending through a passage extending therethrough in an axial direction of the piston, so as to be engageable with, and disengageable from the piston, cooperating with the piston and the cylinder to form a space region for sucking and pressurizing a liquid, a check valve for opening a suction port of the cylinder during suction of the liquid, and a hollow stem slidably fitted with an outer side of the piston in a liquid-tight manner and engaging with an end portion of the piston guide. A first resilient member urges the piston guide against the piston for maintaining a closed state of the passage in the piston, and a second resilient member urges the piston against the piston guide for adjusting a spraying pressure of the liquid.

Abstract: A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring 38 for biasing the vertically movable member 4 is secured to each of the engagement recessed portions 11, thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

Abstract: A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring 39 for biasing the vertically movable member 4 is secured to each of the engagement recessed portions 11, thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

Abstract: A depression head for pump mechanism increasing sealability on the discharge port and enabling favorable shutting of the liquid leakage, said depression head comprising a mounting cylinder assembly 3 having an upright sliding cylinder communicating with the interior of the stem 2; a body 4 adapted to be depressible relative to the mounting cylinder assembly 3 and having an attachment cylinder 11 fitted on the sliding cylinder, a valve chamber disposed above the attachment cylinder and defining a discharge port 12 opened its leading end; a valve member 5 forwardly biased to close the discharge port 19 and defining a passage between the discharge port and a communication port 12 which is also communicating with the interior of a pump cylinder; and a lever member 6 for coupling to the valve member 5 to open the discharge port in response to the depression of the head; wherein a resistive force against the depression of the body with respect to the stem is smaller than a resistive force against the depression of

Abstract: A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring 38 for biasing the vertically movable member 4 is secured to each of the engagement recessed portions 11, thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

Abstract: A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring 38 for biasing the vertically movable member 4 is secured to each of the engagement recessed portions 11, thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

Abstract: A synthetic resin tube container is formed to have a shortened neck portion and to eliminate an overlapping double wall in a structure for mounting a cap to the neck portion. The tube container comprises a container body and a cover plate. The container body has a trunk portion from which the neck portion is extending upwardly through an inward flanged wall. The upper surface of the neck portion is closed by a top wall with a discharge port. A fitting recessed groove is formed circumferentially on the inward flanged wall. The cover plate is connected via a hinge to an insert cylinder which is fitted into the fitting recessed groove.

Abstract: A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring 38 for biasing the vertically movable member 4 is secured to each of the engagement recessed portions 11, thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

Abstract: A spray unit that is attached to an opening at a neck portion of a container for spraying a liquid material in the container, including: a cylinder unit composed of a large-diameter air cylinder and a small-diameter liquid cylinder having a valve hole and an operating member. The operating member is composed of a large-diameter cylindrical piston, a stem having a check valve, and a press-down head having a spray nozzle hole. The liquid is to be sprayed when the operating member is pressed down. When the operating member is pressed down, a liquid flow-out path and an air ejecting path come together via a small gap inside the spray nozzle hole. The spray unit further includes a flow rate control valve is composed of a valve seat provided at an upper face of a valve hole of the liquid cylinder and a valve body arranged above the valve seat to be seated on or released from the valve seat.

Abstract: A manually operated spray device for spraying a liquid in a vessel comprises a cylinder member which includes an upper air cylinder and a lower liquid cylinder, an air piston slidably fitted in the air cylinder, and a suction pipe connected to the liquid cylinder within the vessel toward the bottom thereof. An actuator member is urged upwards and vertically movable relative to the cylinder member; and includes a hollow stem protruding upwards from the liquid cylinder and fitted at its center portion with the air piston, a press head fitted onto the upper portion of the stem, a nozzle hole opening at the side surface of the press head, and first and second passages merging with each other on the upstream side of the nozzle hole. The first passage is communicated with the air chamber on one side of the air piston, and the second passage is communicated with the liquid cylinder through the interior of the stem.

Abstract: A liquid jet pump constructed to suck a liquid within a container on which the pump is mounted and jet the liquid out of a nozzle by pushing down the head of the pump. The nozzle is so formed so as to ascend forward obliquely, and is provided with a discharge valve housing a ball-like valve for closing a valve seat provided at an proximal edge within the nozzle. The valve member is movable both back and forth within the nozzle to keep the liquid from dripping of the nozzle.

Abstract: A trigger-type liquid dispenser comprises a mounting sleeve (2) to be fitted onto a neck portion of a container body, a vertical sleeve (2a) erected from the mounting sleeve (2), an ejecting sleeve (3) projected forwardly from an upper end portion of the vertical sleeve (2a), a cylinder (4) projected forwardly from a middle portion of the vertical sleeve (2a), a plunger (6) slidably engaged in the cylinder (4) and being urged forwardly, a trigger (5) swingably attached to a front portion of the ejecting sleeve (3), a rear surface of an upper portion of the trigger (5) being engaged with an front end portion of the plunger (6), a nozzle fitting sleeve (7) fitted to a front end portion of the ejecting sleeve (3), and a nozzle head (8) rotatably fitted to an outer surface of the nozzle fitting sleeve (7), said nozzle head (8) being formed with a nozzle hole (10). Liquid stored in the container body is sucked up and ejected through the nozzle hole (10) by pulling the trigger (5) rearwardly.

Abstract: A liquid jetting pump sucks a container liquid into a cylinder (3) through a suction valve (9) by moving a vertically movable member (4) up an down. The liquid is jetted out of a nozzle (29) through a discharge valve (31) of stem (28). A plurality of ribs (10) are provided at a lower edge part of the cylinder. Engagement recessed portions (11) are formed on upper surfaces of the ribs. A lower edge of a coil spring (38) biases the vertically movable member (4) upward. The coil spring is secured to each of the engagement recessed portions (11). Passageways (50) permit a flow of liquid on both sides of the lower edge of the spring.