← Back to Patent Explorer
US3659550A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid operated coating and drying machine

Assignee: SPRING TOOLS CORP
•
Filing: 1970-11-09
•
Granted: 1972-05-02
•
Expires: 1990-11-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An apparatus is provided for painting or otherwise treating solid articles or parts with a liquid and subsequently removing excess liquid, comprising a container for the articles or parts, a tank for containing the liquid, means for dipping the container and articles to immerse the articles in the liquid, and means for retracting the container from the liquid and spinning the container to remove excess liquid and drying while the container and articles are within the confines of the tank. All functions are accomplished by air-operated or other fluid means and controlled by valves actuated by an air-operated fluidic circuit, and in the complete absence of any electrical circuits, thereby avoiding any danger of explosion by ignition of the liquid which might be caused by an electrical spark.

Inventors

  • 👤 Wayne F Fulton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:15
CPC Classifications
B; B05; B05C; B05C3/00; B05C3/02

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 370 words
An apparatus for treating articles with a liquid and subsequently removing the excess liquid therefrom which comprises: a. a housing, b. a fluid operated motor mounted on said housing having a vertically mounted rotatable shaft, c. a foraminous container adapted to contain said articles, d. means detachably mounting said container to said shaft for being rotated thereby, e. vertically movable platform means for supporting a liquid receptacle within said housing, f. means for vertically moving said platform, whereby said foraminous container may be loaded with parts, mounted on said shaft, and brought together with respect to said liquid container to permit said parts to be immersed in the liquid contained therein, said foraminous container then removed from said liquid and rotated by said fluid operated motor to remove excess fluid from said articles centrifugally, and subsequently further separated from said liquid container and detached from said supporting means to discharge said articles, g. said housing being provided with a door hingedly mounted thereon and comprising a lower door, latch means for securing said doOr in closed position, an upper door slidably mounted at the inner surface of said lower door, said lower door having guide means slidably retaining said upper door, and check cylinders mounted on said lower door having the shafts thereof connected to the upper edge of said upper door, whereby lowering of said upper door is partially restrained to permit said door to be lowered gently to its lowermost position; h. said platform being provided with a tab and said upper door having an adjustable bracket adapted to be engaged by said tab, whereby raising of said platform causes said upper door to be raised to the closed position, and latch means for securing said upper door in closed position; i. secondary ways disposed at the upper portion of said housing and aligned with ways comprising said mounting to permit said foraminous container to slide off said mounting and to be supported outside of said housing; and j. a fluidic control circuit for raising and lowering said platform, actuating and timing the period of dwell within which said articles remain immersed in said liquid, and actuating and timing the period during which said foraminous container is rotated.
Claim 2
Independent Claim 370 words
An apparatus for treating articles with a liquid and subsequently removing the excess liquid therefrom which comprises: a. a housing, b. a fluid operated motor mounted on said housing having a vertically mounted rotatable shaft, c. a foraminous container adapted to contain said articles, d. means detachably mounting said container to said shaft for being rotated thereby, e. vertically movable platform means for supporting a liquid receptacle within said housing, f. means for vertically moving said platform, whereby said foraminous container may be loaded with parts, mounted on said shaft, and brought together with respect to said liquid container to permit said parts to be immersed in the liquid contained therein, said foraminous container then removed from said liquid and rotated by said fluid operated motor to remove excess fluid from said articles centrifugally, and subsequently further separated from said liquid container and detached from said supporting means to discharge said articles, g. said housing being provided with a door hingedly mounted thereon and comprising a lower door, latch means for securing said doOr in closed position, an upper door slidably mounted at the inner surface of said lower door, said lower door having guide means slidably retaining said upper door, and check cylinders mounted on said lower door having the shafts thereof connected to the upper edge of said upper door, whereby lowering of said upper door is partially restrained to permit said door to be lowered gently to its lowermost position; h. said platform being provided with a tab and said upper door having an adjustable bracket adapted to be engaged by said tab, whereby raising of said platform causes said upper door to be raised to the closed position, and latch means for securing said upper door in closed position; i. secondary ways disposed at the upper portion of said housing and aligned with ways comprising said mounting to permit said foraminous container to slide off said mounting and to be supported outside of said housing; and j. a fluidic control circuit for raising and lowering said platform, actuating and timing the period of dwell within which said articles remain immersed in said liquid, and actuating and timing the period during which said foraminous container is rotated.
Claim 3
Dependent Claim 11 words
An apparatus according to claim 1, wherein said fluid is air.
Claim 4
Dependent Claim 58 words
An apparatus according to claim 1, wherein said means for moving the platform comprises a double-acting fluid cylinder operating assembly mounted at one end to said housing and at the other end operatively connected to said platform, and means for individually actuating at least one of said cylinders, whereby said platform may be raised to an intermediate position.
Claim 5
Dependent Claim 41 words
An apparatus according to claim 1, wherein said housing includes a channel beam mounted therein, said platform being mounted on said beam, and said means for moving said platform includes a carriage mounted for travel up and down said channel beam.
Claim 6
Dependent Claim 139 words
A fluidic circuit according to claim 1, wherein said fluidic circuit includes a push button switch for actuating said circuit, a timer module for determining the dwell time of said articles in said liquid, a second timer for determining the duration of the spin portion of the cycle, an inhibited-OR module cooperating with a digital amplifier to actuate a valve providing air to said motor, a dual fluid-operated cylinder assembly comprising first and second cylinders, a preferenced flip-flop and digital amplifier actuated by said first timer adapted to actuate said first fluid-operated cylinder for raising or lowering said platform to an intermediate position, and a second preferenced flip-flop module cooperating with a digital amplifier and actuated by said second timer for actuating said second fluid-operated cylinder for raising and lowering said platform to the full up or down positions.
Claim 7
Dependent Claim 11 words
An apparatus according to claim 5, wherein said fluid is air.

References Cited (Backward Citations)

US2419260A Cited
US2387299A Cited
US2387300A Cited
US3262420A Cited
US3446266A Cited
US3200788A Cited
US3431887A Cited
US3382844A Cited
US3269633A Cited
US3227135A Cited
US3568632A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-05-02 1975-11-01 1976-05-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-02 1979-11-01 1980-05-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-02 1983-11-01 1984-05-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag