Liquid spraying device

Claim 2

A liquid spraying device comprising container means including a receptacle adapted to hold a quantity of liquid and having an opening for filling the receptacle with the liquid, cover means removably mounted on the receptacle to close the opening and including an upwardly extending cylindrical guide, spray head means rotatably mounted on the cover means, slide means movably mounted within the cylindrical guide and operably connected to the spray head means whereby rotation of the spray head means relative to the cover means in a fixed direction moves the slide means upwardly, liquid pressurizing pump means including a cylinder and a piston defining a liquid pressurizing chamber, the cylinder being operably connected in fixed relation to one of the cover means and slide means and the piston being operably connected in fixed relation to the other of the means, a spring mounted in the spray head means for biasing the slide means in a direction to decrease the volume of the liquid pressurizing chamber to thereby pressurize liquid therein, an inlet conduit adapted to conduct the liquid in the receptacle to the chamber, an inlet check valve in the conduit, a discharge valve in the spray head means for controlling the discharge of pressurized liquid from the chamber in the form of a spray, and a hollow stem made of rigid material and adapted to conduct pressurized liquid from the chamber to the discharge valve.

Claim 3

A liquid spraying device as set forth in claim 1, in which the hollow stem is made of metal.

Claim 4

A liquid spraying device as set forth in claim 1, in which the hollow stem is made of hard plastic material.

Claim 5

A liquid spraying device as set forth in claim 1, in which the hollow stem is fixed with respect to the spray head means.

Claim 6

A liquid spraying device as set forth in claim 4, in which the upper end of the hollow stem is fixedly mounted on the discharge valve which in turn is fixedly mounted on the spray head means.

Claim 7

A liquid spraying device as set forth in claim 4, in which the lower end of the hollow stem extends into the liquid pressurizing chamber and has a liquid-tight slide fit in the opening formed in one of the cylinder and piston which is operably connected in fixed relation to the slide means.

Claim 8

A liquid spraying device comprising a container having a reservoir adapted to hold a quantity of liquid and an opening for filling the same with liquid, a cover unit adapted to close the opening and including a cylinder extending downwardly into the container, the cover unit also including a cylindrical guide extending upwardly therefrom and having a pair of diametrically opposite axial grooves formed interiorly thereof, a spray head rotatably mounted on the cylindrical guide, a slide member mounted in the cylindrical guide for vertical movement therein and including a piston slidably received in the cylinder, the piston and cylinder defining a liquid pressurizing chamber therebetween, the slide member having a sinuous groove formed exteriorly thereof which comprises a pair of diametrically opposite axial sections and a pair of intersecting sections each intersecting at one end the upper end of one axial section and at the other end the lower end of the other axial section, a cylindrical member mounted in the spray head for transmitting the rotational movement of the head to the slide member, two balls each rotatably received in one of the axial grooves of the cylindrical guide and the sinuous groove of the slide member for causing vertical upward movement of the slide member in response to rotation of the spray head, a spring for biasing the slide member in a direction tending to decrease the volume of the liquid pressurizing chamber, an inlet conduit adapted to conduct the liquid in the receptacle to the chamber, an inlet check valve in the conduit, the spray head including a spray nozzle and a discharge valve operable for controlling discharge of liquid under spring pressure from the chamber through the nozzle in the form of a spray, and a hollow stem made of rigid material for communicating the chamber with the discharge valve.

Claim 9

A liquid spraying device comprising a container having a reservoir adapted to hold a quantity of liquid and an opening for filling the same with liquid, a cover unit adapted to close the opening and including a cylinder extending downwardly into the container, the cover unit also including a cylindrical guide extending upwardly therefrom and having a pair of diametrically opposite axial grooves formed interiorly thereof, a spray head rotatably mounted on the cylindrical guide, a slide member mounted in the cylindrical guide for vertical movement therein and including a piston slidably received in the cylinder, the piston and cylinder defining a liquid pressurizing chamber therebetween, the slide member having a sinuous groove formed exteriorly thereof which comprises a pair of diametrically opposite axial sections and a pair of intersecting sections each intersecting at one end the upper end of one axial section and at the other end the lower end of the other axial section, a cylindrical member mounted in the spray head for transmitting the rotational movement of the head to the slide member, two balls each rotatably received in one of the axial grooves of the cylindrical guide and the sinuous groove of the slide member for causing vertical upward movement of the slide member in response to rotation of the spray head, a spring for biasing the slide member in a direction tending to decrease the volume of the liquid pressurizing chamber, an inlet conduit adapted to conduct the liquid in the receptacle to the chamber, an inlet check valve in the conduit, the spray head including a spray nozzle and a discharge valve operable for controlling discharge of liquid under spring pressure from the chamber through the nozzle in the form of a spray, and a hollow stem made of rigid material for communicating the chamber with the discharge valve.

Claim 10

A liquid spraying device as set forth in claim 7, in which the upper end of the hollow stem is fixedly mounted on the discharge valve which in turn is fixedly mounted on the spray head.

Claim 11

A liquid spraying device as set forth in claim 8, in which the piston had a piston ring mounted thereon, the piston ring being formed with an opening for slidably receiving the lower end of the hollow stem in the liquid-tight manner.

Claim 12

A liquid spraying device comprising a container having a reservoir adapted to hold a quantity of liquid and an opening for filling the same with liquid, a cover unit adapted to close the opening and including a piston extending upwardly therefrom, the cover unit also including a cylindrical guide extending upwardly therefrom and having a pair of diametrically opposite axial grooves formed interiorly thereof, a spray head rotatably mounted on the cylindrical guide, a slide member mounted in the cylindrical guide for vertical movement therein and including a cylinder slidably received on the piston, the piston and cylinder defining a liquid pressurizing chamber therebetween, the slide member having a sinuous groove formed exteriorly thereof which comprises a pair of diametrically opposite axial sections and a pair of intersecting sections each intersecting at one end the upper end of one axial section and at the other end the lower end of the other axial section, a cylindrical member mounted in the spray head for transmitting the rotational movement of the head to the slide member, two balls each rotatably received in one of the axial grooves of the cylindrical guide and the sinuous groove of the slide member for causing vertical upward movement of the slide member in response to rotation of the spray head, a spring for biasing the slide member in a direction tending to decrease the volume of the liquid pressurizing chamber, an inlet conduit adapted to conduit the lIquid in the receptacle to the chamber, an inlet check valve in the conduit, the spray head including a spray nozzle and a discharge valve operable for controlling discharge of liquid under spring pressure form the chamber through the nozzle in the form of a spray, and a hollow stem made of rigid material for communicating the chamber with the discharge valve.

Claim 13

A liquid spraying device comprising a container having a reservoir adapted to hold a quantity of liquid and an opening for filling the same with liquid, a cover unit adapted to close the opening and including a piston extending upwardly therefrom, the cover unit also including a cylindrical guide extending upwardly therefrom and having a pair of diametrically opposite axial grooves formed interiorly thereof, a spray head rotatably mounted on the cylindrical guide, a slide member mounted in the cylindrical guide for vertical movement therein and including a cylinder slidably received on the piston, the piston and cylinder defining a liquid pressurizing chamber therebetween, the slide member having a sinuous groove formed exteriorly thereof which comprises a pair of diametrically opposite axial sections and a pair of intersecting sections each intersecting at one end the upper end of one axial section and at the other end the lower end of the other axial section, a cylindrical member mounted in the spray head for transmitting the rotational movement of the head to the slide member, two balls each rotatably received in one of the axial grooves of the cylindrical guide and the sinuous groove of the slide member for causing vertical upward movement of the slide member in response to rotation of the spray head, a spring for biasing the slide member in a direction tending to decrease the volume of the liquid pressurizing chamber, an inlet conduit adapted to conduit the lIquid in the receptacle to the chamber, an inlet check valve in the conduit, the spray head including a spray nozzle and a discharge valve operable for controlling discharge of liquid under spring pressure form the chamber through the nozzle in the form of a spray, and a hollow stem made of rigid material for communicating the chamber with the discharge valve.

Claim 14

A liquid spraying device as set forth in claim 10, in which the upper end of the hollow stem is fixedly mounted on the discharge valve which in turn is fixedly mounted on the spray head.

Claim 15

A liquid spraying device as set forth in claim 11, in which the lower end of the hollow stem has a liquid-tight slide fit in an opening formed in the cylinder.