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US 4,228,345 AGranted
Traveling infrared bell oven system
AssigneeBlack Body Corporation
InventorsJesse C. Stricker, Dennis L. Wagner
Life of this patent
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AssigneeBlack Body Corporation
InventorsJesse C. Stricker, Dennis L. Wagner
Estimating the term…
A traveling oven system is adapted for use synchronously with an extrinsic conveyor, particularly for shrink wrapping purposes by heating an object such as a pallette, package, or other article of manufacture covered by a polyethylene film bag to shrink the bag about the same. The system includes a bell-type oven having a housing with side wall portions, front and rear wall portions, and a top wall, being open at the lower end and having infrared heating panels on predetermined wall portions. The oven is supported above the conveyor by a tram carried by a gantry extending along the conveyor for vertical movement of the oven with respect to the conveyor and also for horizontal movement in forward and reverse directions along a reach of the conveyor. A vertical drive is included for vertically reciprocally moving the oven between an upper position with the lower end of the oven above objects at least partially enclosing such objects for heating thereof. A horizontal drive is provided for horizontally moving the oven in forward and reverse directions. A control circuit causes the horizontal drive to move the oven forward in synchronism with the conveyor while causing the vertical drive to move the oven down to the lower position for heating of such objects and thereafter to move it to the upper position. The control circuit then causes the horizontal drive to move the oven in the reverse direction to turn it to a starting position for heating of further items upon the conveyor.
An oven system adapted for synchronous use with an extrinsic conveyor, said system providing automatic heating of objects successively being conveyed by said conveyor and comprising an oven having means defining a housing including side wall portions, front and rear wall portions, a top wall, and being open at the lower end, heating elements within said oven associated with predetermined ones of said wall portions, means for carrying said oven above an extrinsic conveyor for vertical movement with respect to said conveyor and for horizontal movement in forward and reverse directions along a reach of said conveyor, vertical drive means for vertically moving said oven up and down between an upper position within the lower end of said oven above objects of said conveyor and a lower position with said oven at least partially enclosing said objects on said conveyor for heating thereof by said heating elements, horizontal drive means for horizontally moving said oven in said forward and reverse directions, and control means for causing said horizontal drive means to move said oven forward in synchronism with movement of said objects upon said conveyor while causing said vertical drive means to move said oven to said lower position for heating of said objects and thereafter to move said oven to said upper position, and subsequently causing said horizontal drive means to move said oven in said reverse direction to return said oven for heating of further items upon said conveyor.
An oven system providing automatic synchronous heating of objects moved by an extrinsic conveyor and comprising an oven having a housing open at the lower end, heating elements within said oven, means for carrying said oven above an extrinsic conveyor for vertical movement with respect to said conveyor between upper and lower positions and for horizontal movement in forward and reverse directions along a reach of said conveyor, said oven at least partially enclosing said objects on said conveyor for heating thereof when in said lower position, means for moving said oven to said lower position for heating of said objects, means for moving said oven forward from a starting position in synchronism with movement of said objects upon said conveyor while heating of said objects occurs, means for moving said oven to said upper position after said heating, and means for returning said oven after said heating to said starting position for heating of further items upon said conveyor.
Dependencies are inferred from the claim text.