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US3741149A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic machine for spraying the interior of container shells

Assignee: Rheem Manufacturing Co
•
Filing: 1971-03-19
•
Granted: 1973-06-26
•
Expires: 1991-03-19
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Abstract

Abstract A machine for automatically spraying the interior of hollow bodies such as drum shells or pails or other hollow container shells embodying an indexing turret type machine in which the articles are fed thereto in upright position with the axis vertical at one station and are indexed to a spraying station where shrouds advance over the end or ends of the article and a rotary centrifugal spray head makes a down and up cycle in the interior, the article then being indexed to a release station. The machine includes special features concerning a suction means in connection with the shrouds for drawing off vapors from the spraying area at each end of the shell in a uniform suction pressure condition throughout the peripheral extent and in a manner to prevent spray material being deposited on the outer surface of the body; magnetic means for holding the article within the turret in its rapid indexing steps; and a paint supply means for the rotary and reciprocatory spray head including a stationary paint supply tube and valve seat with a coaxial nonrotary elongated valve member within the tube; the entire operation being automatically controlled by an electrical circuitry embodying limit switches, solenoids and related elements.

Inventors

  • 👤 A Gerlovich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 17:22
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/06; B05B13/0609; B05B12/00; B05B12/16; B05B12/18; B05B13/02; B05B13/0221; B05B13/0242; B05B14/00; B05B14/30; B05B3/00; B05B3/02; B05B3/10; B05B3/1007; B05B3/1021

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 124 words
In an automatic machine for spraying the interior of hollow bodies embodying a spray head with power means for advancing it into the interior of the body, and a body receiving station and a spray station, and a body conveyor with power means for operating it, the combination therewith of a shroud movable over an end of the body axially thereof at the spray station, power means for moving said shroud, and control means automatically actuated by the presence of a body at said spray station to energize said power means to advance the shroud, said shroud having a connection to a suction source and provided with fluid passages and baffle means arranged to produce a substantially uniform suction pressure around the body end.
Claim 2
Dependent Claim 124 words
In an automatic machine for spraying the interior of hollow bodies embodying a spray head with power means for advancing it into the interior of the body, and a body receiving station and a spray station, and a body conveyor with power means for operating it, the combination therewith of a shroud movable over an end of the body axially thereof at the spray station, power means for moving said shroud, and control means automatically actuated by the presence of a body at said spray station to energize said power means to advance the shroud, said shroud having a connection to a suction source and provided with fluid passages and baffle means arranged to produce a substantially uniform suction pressure around the body end.
Claim 3
Dependent Claim 25 words
A machine in accordance with claim 1 in which a like shroud and power moving means therefor are provided for each end of the body.
Claim 4
Dependent Claim 136 words
An automatic machine for spraying hollow open ended bodies comprising a turret conveyor for the bodies rotatable about a vertical axis, with respect to a body supply station and a spray station, a shroud vertically movable over each end of the body at the spray station, a spray head vertically movable from a retracted position into the interior of the body at the spray station, power means for operating each of said shrouds and said spray head, and automatic control means actuated by the presence of a drum at the supply station for indexing the turret to move the body to the spray station, and actuated by the body at the spray station to cause the shrouds to advance over the body ends and then in sequence the spray head to advance into the body interior.
Claim 5
Dependent Claim 136 words
An automatic machine for spraying hollow open ended bodies comprising a turret conveyor for the bodies rotatable about a vertical axis, with respect to a body supply station and a spray station, a shroud vertically movable over each end of the body at the spray station, a spray head vertically movable from a retracted position into the interior of the body at the spray station, power means for operating each of said shrouds and said spray head, and automatic control means actuated by the presence of a drum at the supply station for indexing the turret to move the body to the spray station, and actuated by the body at the spray station to cause the shrouds to advance over the body ends and then in sequence the spray head to advance into the body interior.
Claim 6
Dependent Claim 23 words
A machine in accordance with claim 3 in which the said shrouds are each movable by an air cylinder power means automatically controlled.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-25 1976-12-25 1977-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-25 1980-12-25 1981-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-25 1984-12-25 1985-06-26 $7700.00 Window Closed / Lapsed

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