US3777945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying device
Assignee: Yoshino Kogyosho Co Ltd
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Filing: 1972-06-08
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Granted: 1973-12-11
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Expires: 1992-06-08
Abstract
Abstract This invention relates to a spraying device. Said spraying device comprises a container containing a liquid therein, a rotary head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, slide means mounted in said cylindrical chamber and adapted to be moved upwardly and downwardly by the force with which said spray head is turned, and a piston mounted in the interior of said slide means and adapted to be moved upwardly as the slide means moves upwardly and moved downwardly by the biasing force of a spring mounted about said piston and serving as a restoring spring. Said piston is formed therein with a central axial bore serving as a passage for the liquid. Said spraying device is characterized by a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion formed therein with a pressurizing chamber and a lower portion serving as a liquid tank, a liquid drawing line depending from the lower end of said pressurizing chamber into said liquid tank, means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting the rotary movement of the rotary head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotary head, and a passage formed in said transverse partition wall and having an air valve mounted in its lower portion for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Inventors
- 👤 T Nozawa
- 👤 T Kishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/085; B05B9/0877; B05B9/0883
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
242 words
A spraying device comprising a container containing a liquid therein, a rotatable head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, slide means mounted in said cylindrical chamber defining on the lower part thereof a piston having an axiAl bore therein, said slide means movable upwardly and downwardly within said chamber, a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion with a pressurizing chamber and a lower portion serving as a liquid tank, said pressurizing chamber receiving said piston defined on the lower part of said slide means, a liquid one way drawing line depending from the lower end of said pressurizing chamber into said liquid tank, means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting rotary movement of the rotatable head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotatable head, conduit means extending from the axial bore of said piston to said valve assembly, means to force liquid from said pressurizing chamber to said valve assembly and a passage formed in said transverse partition wall and having an air valve mounted in its lower portiOn for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Claim 2
Dependent Claim
242 words
A spraying device comprising a container containing a liquid therein, a rotatable head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, slide means mounted in said cylindrical chamber defining on the lower part thereof a piston having an axiAl bore therein, said slide means movable upwardly and downwardly within said chamber, a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion with a pressurizing chamber and a lower portion serving as a liquid tank, said pressurizing chamber receiving said piston defined on the lower part of said slide means, a liquid one way drawing line depending from the lower end of said pressurizing chamber into said liquid tank, means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting rotary movement of the rotatable head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotatable head, conduit means extending from the axial bore of said piston to said valve assembly, means to force liquid from said pressurizing chamber to said valve assembly and a passage formed in said transverse partition wall and having an air valve mounted in its lower portiOn for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Claim 3
Dependent Claim
240 words
A liquid spraying device comprising a container containing a liquid therein, a rotary head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, and slide means mounted in said cylindrical chamber and adapted to be moved upwardly by the force with which the rotary head is turned and moved downwardly by the biasing force of a restoring spring, said slide means being formed therein with a central axial bore serving as a passage for the liquid, and said restoring spring is provided between the rotary head and container for storing therein an energy of resilience for urging the slide means to return to its original position, a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion formed therein with a pressurizing chamber and a lower portion serving as a liquid tank, and means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting the rotary movement of the rotary head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotary head, and a passage formed in said transverse partition wall and having an air valve mounted in its lower portion for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Claim 4
Dependent Claim
240 words
A liquid spraying device comprising a container containing a liquid therein, a rotary head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, and slide means mounted in said cylindrical chamber and adapted to be moved upwardly by the force with which the rotary head is turned and moved downwardly by the biasing force of a restoring spring, said slide means being formed therein with a central axial bore serving as a passage for the liquid, and said restoring spring is provided between the rotary head and container for storing therein an energy of resilience for urging the slide means to return to its original position, a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion formed therein with a pressurizing chamber and a lower portion serving as a liquid tank, and means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting the rotary movement of the rotary head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotary head, and a passage formed in said transverse partition wall and having an air valve mounted in its lower portion for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Claim 5
Dependent Claim
298 words
A spraying device comprising a container containing a liquid therein, a rotary head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, slide means mounted in said cylindrical chamber defining on the lower part thereof a piston having an axial bore therein, said slide means movable upwardly and downwardly within said chamber, a piston with rod mounted in the interior of said slide means and adapted to be moved upwardly as the slide means moves upwardly and moved downwardly by the biasing force of a spring mounted about the rod of said piston and serving as a restoring spring, said piston being formed therein with a central axial bore serving as a passage for the liquid, a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion with a pressurizing chamber formed therein and a lower portion serving as a liquid tank, said pressurizing chamber receiving said piston defined on the lower part of said slide means, a liquid one way drawing line depending from the lower end of said pressurizing chamber into said liquid tank, means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting rotary movement of the rotary head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotary head, conduit means extending from the axial bore of said piston with rod to said valve assembly and a passage formed in said transverse partition wall and having an air valve mounted in its lower portion for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Claim 6
Dependent Claim
298 words
A spraying device comprising a container containing a liquid therein, a rotary head fitted over the top of said container, a cylindrical chamber formed in an upper portion of said container, slide means mounted in said cylindrical chamber defining on the lower part thereof a piston having an axial bore therein, said slide means movable upwardly and downwardly within said chamber, a piston with rod mounted in the interior of said slide means and adapted to be moved upwardly as the slide means moves upwardly and moved downwardly by the biasing force of a spring mounted about the rod of said piston and serving as a restoring spring, said piston being formed therein with a central axial bore serving as a passage for the liquid, a transverse partition wall formed substantially in the central portion of said container to divide the container into an upper portion with a pressurizing chamber formed therein and a lower portion serving as a liquid tank, said pressurizing chamber receiving said piston defined on the lower part of said slide means, a liquid one way drawing line depending from the lower end of said pressurizing chamber into said liquid tank, means provided in the side wall of said slide means and the side wall of the upper portion of said container for converting rotary movement of the rotary head into a reciprocating movement of the slide means, a valve assembly comprising a nozzle and mounted in the upper central portion of the rotary head, conduit means extending from the axial bore of said piston with rod to said valve assembly and a passage formed in said transverse partition wall and having an air valve mounted in its lower portion for preventing the pressure in the liquid tank from becoming lower than atmospheric pressure.
Claim 7
Dependent Claim
32 words
A spraying device as set forth in claim 3, further characterized by a secondary pressurizing chamber formed in the lower portion of said slide means as the piston with rod moves upwardly.
Claim 8
Dependent Claim
70 words
A spraying device as set forth in claim 3, wherein said means for converting the rotary movement of the rotary head into a reciprocating movement of the slide means comprises at least one recess formed in the upper portion of container, an inclind peripheral groove formed in wave-form and provided on the outer wall surface of said slide means and at least one ball inserted in said recess and groove.
Claim 9
Dependent Claim
69 words
A spraying device as set forth in claim 3, wherein said means for converting the rotary movement of the rotary head into a reciprocating movement of The slide means comprises at least one recess formed in the upper portion of container, at least one discrete inclined peripheral groove formed on the outer wall surface of said slide means and at least one ball inserted in said recess and groove.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |