US3589102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary method and apparatus for wrapping a pallet load
Assignee: WELDOTORON Corp
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Filing: 1968-11-05
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Granted: 1971-06-29
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Expires: 1988-11-05
Abstract
Abstract Apparatus for shrink wrapping an object comprises a rotary platform for rotating an object wrapped in a heat-shrinkable film and heat-shrinking apparatus for heat shrinking the film around the object during rotation of the rotary platform. The heat is provided as hot air blown on the object in vertically and horizontally extending lines.
Inventors
- 👤 Seymour Zelnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:12
CPC Classifications
B; B65; B65B; B65B53/00; B65B53/02; B65B53/06; B65B53/066
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
222 words
Apparatus for wrapping an object, comprising: conveyor means for transporting an object, said conveyor means having a space formed therein dividing said conveyor means into two parts each having an edge bordering said space; rotary platform means rotatably mounted in the space between the two conveyor parts for axial rotation in a plane substantially coplanar with the plane of said conveyor means; said rotary platform means being positioned for transfer of the object from one of the two conveyor parts to said rotary platform means and for transfer of the object from said rotary platform means and for transfer of the object from said rotary platform means to the other of said two conveyor parts; a bridge member pivotally affixed to the edge of one of the parts of the conveyor means and extending into said space and bridge means coupled to said bridge member for selectively pivotally raising and lowering said bridge member to permit clearance of the corners of said rotary platform means and said edge during rotation of said rotary platform means; wrapping means for wrapping a heat-shrinkable film on the object; rotary drive means coupled to said rotary platform means for rotating the film-wrapped object on said rotary platform means; and shrinking means for heat shrinking the film around the object during rotation of said rotary platform means.
Claim 2
Dependent Claim
222 words
Apparatus for wrapping an object, comprising: conveyor means for transporting an object, said conveyor means having a space formed therein dividing said conveyor means into two parts each having an edge bordering said space; rotary platform means rotatably mounted in the space between the two conveyor parts for axial rotation in a plane substantially coplanar with the plane of said conveyor means; said rotary platform means being positioned for transfer of the object from one of the two conveyor parts to said rotary platform means and for transfer of the object from said rotary platform means and for transfer of the object from said rotary platform means to the other of said two conveyor parts; a bridge member pivotally affixed to the edge of one of the parts of the conveyor means and extending into said space and bridge means coupled to said bridge member for selectively pivotally raising and lowering said bridge member to permit clearance of the corners of said rotary platform means and said edge during rotation of said rotary platform means; wrapping means for wrapping a heat-shrinkable film on the object; rotary drive means coupled to said rotary platform means for rotating the film-wrapped object on said rotary platform means; and shrinking means for heat shrinking the film around the object during rotation of said rotary platform means.
Claim 3
Dependent Claim
38 words
Apparatus as claimed in claim 1, wherein said wrapping means comprises a roll of heat-shrinkable film mounted adjacent said rotary platform means for wrapping the object on said rotary platform means during rotation of said rotary platform means.
Claim 4
Dependent Claim
84 words
Apparatus as claimed in claim 1, wherein said shrinking means comprises vertical conduit means having a substantially vertical conduit movably mounted for movement toward and away from said rotary platform means, said vertical conduit having a plurality of outlet apertures formed therethrough extending along the vertical length thereof, vertical heat means for blowing hot air out of said outlet apertures, and vertical conduit drive means coupled to said vertical conduit for selectively moving said vertical conduit toward and away from said rotary platform means.
Claim 5
Dependent Claim
84 words
Apparatus as claimed in claim 1, wherein said shrinking means further comprises horizontal conduit means having a substantially horizontal conduit movably mounted for movement upward and downward relative to the object on said rotary platform means, said horizontal conduit having a plurality of outlet apertures formed therethrough extending along a horizontal length thereof, horizontal heat means for blowing hot air out of said outlet apertures, and horizontal conduit drive means coupled to said horizontal conduit for selectively moving said horizontal conduit upward and downward.
Claim 6
Dependent Claim
76 words
Apparatus as claimed in claim 1, further comprising a second bridge member pivotally affixed to the edge of the other of the parts of the conveyor means and extending into said space, and bridge means coupled to said first and second bridge members for selectively pivotally raising and lowering said first and second bridge members to permit clearance of the corners of said rotary platform means and said edges during rotation of said rotary platform means.
Claim 7
Dependent Claim
158 words
Apparatus for shrink wrapping an object, comprising rotary platform means for rotating an object wrapped in a heat-shrinkable film; and shrinking means for heat shrinking the film around the object during rotation of said rotary platform means, said shrinking means comprises vertically extending conduit means having a substantially vertical conduit movably mounted for movement toward and away from said rotary platform means, said vertical conduit having air outlet means extending along at least part of the vertical length thereof, air heating and blowing means for blowing hot air out of said outlet means, and drive means coupled to said vertical conduit and to said air heating and blowing means for moving said vertical conduit and said air heating and blowing means toward and away from said rotary platform means, and control means electrically connected to the vertical conduit drive means for deenergizing said vertical conduit drive means when said vertical conduit reaches a determined distance from said object.
Claim 8
Dependent Claim
158 words
Apparatus for shrink wrapping an object, comprising rotary platform means for rotating an object wrapped in a heat-shrinkable film; and shrinking means for heat shrinking the film around the object during rotation of said rotary platform means, said shrinking means comprises vertically extending conduit means having a substantially vertical conduit movably mounted for movement toward and away from said rotary platform means, said vertical conduit having air outlet means extending along at least part of the vertical length thereof, air heating and blowing means for blowing hot air out of said outlet means, and drive means coupled to said vertical conduit and to said air heating and blowing means for moving said vertical conduit and said air heating and blowing means toward and away from said rotary platform means, and control means electrically connected to the vertical conduit drive means for deenergizing said vertical conduit drive means when said vertical conduit reaches a determined distance from said object.
Claim 9
Dependent Claim
13 words
Apparatus as claimed in claim 5, wherein the object is a pallet load.
Claim 10
Dependent Claim
158 words
Apparatus for shrink wrapping an object, comprising rotary platform means for rotating an object wrapped in a heat-shrinkable film; and shrinking means for heat shrinking the film around the object during rotation of said rotary platform means, said shrinking means comprises vertically extending conduit means having a substantially vertical conduit movably mounted for movement toward and away from said rotary platform means, said vertical conduit having air outlet means extending along at least part of the vertical length thereof, air heating and blowing means for blowing hot air out of said outlet means, and drive means coupled to said vertical conduit and to said air heating and blowing means for moving said vertical conduit and said air heating and blowing means toward and away from said rotary platform means, and a conveyor having a retractable part disposed adjacent said rotary platform means and movable to a retracted position when said rotary platform is rotated with the load thereon.
Claim 11
Dependent Claim
158 words
Apparatus for shrink wrapping an object, comprising rotary platform means for rotating an object wrapped in a heat-shrinkable film; and shrinking means for heat shrinking the film around the object during rotation of said rotary platform means, said shrinking means comprises vertically extending conduit means having a substantially vertical conduit movably mounted for movement toward and away from said rotary platform means, said vertical conduit having air outlet means extending along at least part of the vertical length thereof, air heating and blowing means for blowing hot air out of said outlet means, and drive means coupled to said vertical conduit and to said air heating and blowing means for moving said vertical conduit and said air heating and blowing means toward and away from said rotary platform means, and a conveyor having a retractable part disposed adjacent said rotary platform means and movable to a retracted position when said rotary platform is rotated with the load thereon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |