US3590549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for wrapping a pallet load
Assignee: WELDOTORON Corp
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Filing: 1968-06-07
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Granted: 1971-07-06
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Expires: 1988-06-07
Abstract
Abstract A pallet load of product is secured onto a pallet by forming a sleeve of heat shrinkable film around the pallet load with its open top extending above the pallet load and its open bottom extending below the platform of the pallet. An auxiliary web of relatively high shrink energy film is secured to the sleeve diametrically above the load, and an additional auxiliary web of relatively high shrink energy film is secured to the sleeve diametrically below the platform.
Inventors
- 👤 Seymour Zeinick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:07
CPC Classifications
B; B65; B65B; B65B53/00; B65B53/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
92 words
A method of stabilizing a pallet load, comprising: encircling the pallet load with a primary sleeve of heat shrinkable film having a vertical longitudinal axis and having a portion thereof extending above the top surface of the pallet load; disposing an auxiliary elongated web of heat shrinkable film on the top surface of the pallet load and joining the ends thereof to spaced apart, opposed subportions of said portion of the sleeve extending above the top section of the pallet load; and shrinking said web and said sleeve about said pallet load.
Claim 2
Independent Claim
92 words
A method of stabilizing a pallet load, comprising: encircling the pallet load with a primary sleeve of heat shrinkable film having a vertical longitudinal axis and having a portion thereof extending above the top surface of the pallet load; disposing an auxiliary elongated web of heat shrinkable film on the top surface of the pallet load and joining the ends thereof to spaced apart, opposed subportions of said portion of the sleeve extending above the top section of the pallet load; and shrinking said web and said sleeve about said pallet load.
Claim 3
Dependent Claim
31 words
A method according to claim 1, wherein: the film which is used for the auxiliary web has a higher shrink energy than the film which is used for the primary sleeve.
Claim 4
Dependent Claim
63 words
A method according to claim 1 wherein: said primary sleeve has a portion thereof extending below the platform of the pallet; and further including; disposing an additional auxiliary elongated web of heat shrinkable film under the platform of the pallet and joining the ends thereof to spaced apart, opposed subportions of said portion of the sleeve extending below the platform of the pallet.
Claim 5
Dependent Claim
31 words
A method according to claim 3 wherein: the film which is used for the auxiliary webs has a higher shrink energy than the film which is used for the primary sleeve.
Claim 6
Independent Claim
197 words
A method of providing a sleeve of plastic film tightly around an article including at least the peripheral margins of the top surface thereof, comprising: providing a path for the article; joining together in a vertical junction the running ends of two webs of film from respective supplies thereof respectively disposed on opposite sides of said path to provide a curtain of film across said path, and at the same time joining into said junction the running end of an auxiliary web of film disposed above the top surface of the article; advancing said article against said curtain of film to carry said curtain along said path, withdrawing additional film from said supplies, and forming a bight in said curtain around said article; and joining together in a vertical junction two spaced apart portions of said bight of film closely behind said article to form a sleeve of film about said article, severing said sleeve from remainder of said webs to form a fresh curtain of film across said path, and at the same time joining into said junction an intermediate portion of said auxiliary web joined into said vertical junction of said fresh curtain of film.
Claim 7
Independent Claim
197 words
A method of providing a sleeve of plastic film tightly around an article including at least the peripheral margins of the top surface thereof, comprising: providing a path for the article; joining together in a vertical junction the running ends of two webs of film from respective supplies thereof respectively disposed on opposite sides of said path to provide a curtain of film across said path, and at the same time joining into said junction the running end of an auxiliary web of film disposed above the top surface of the article; advancing said article against said curtain of film to carry said curtain along said path, withdrawing additional film from said supplies, and forming a bight in said curtain around said article; and joining together in a vertical junction two spaced apart portions of said bight of film closely behind said article to form a sleeve of film about said article, severing said sleeve from remainder of said webs to form a fresh curtain of film across said path, and at the same time joining into said junction an intermediate portion of said auxiliary web joined into said vertical junction of said fresh curtain of film.
Claim 8
Dependent Claim
19 words
A method according to claim 5 further including heat shrinking said sleeve and said auxiliary web about said article.
Claim 9
Dependent Claim
31 words
A method, according to claim 6 wherein: the film which is used for the auxiliary web has a higher shrink energy than the film which is used for the primary sleeve.
Claim 10
Dependent Claim
51 words
A method according to claim 5 wherein at the same time that said ends of said auxiliary web of film above said top surface of said article are respectively joined to said portions, the ends of similar additional web of film below the said article are respectively joined to said junctions.
Claim 11
Dependent Claim
148 words
Apparatus for providing a sleeve of plastic film tightly around and article including at least the peripheral margins of the top surface thereof, comprising: means for conveying the article along a path; first and second film supply means respectively disposed on each side of the path for respectively supplying first and second webs of film; sealing-cutting means for joining the respective running ends of said first and second webs together in a junction perpendicular to said path for forming said webs into a curtain perpendicularly across said path, extending above the top surface of the article; and means for forming a sleeve of film from said curtain around said article; third film supply means for supplying a third web of film above the article; said sealing-cutting means being adapted to join said third web into said junction concurrently with joining said first and second web into said junction.
Claim 12
Dependent Claim
148 words
Apparatus for providing a sleeve of plastic film tightly around and article including at least the peripheral margins of the top surface thereof, comprising: means for conveying the article along a path; first and second film supply means respectively disposed on each side of the path for respectively supplying first and second webs of film; sealing-cutting means for joining the respective running ends of said first and second webs together in a junction perpendicular to said path for forming said webs into a curtain perpendicularly across said path, extending above the top surface of the article; and means for forming a sleeve of film from said curtain around said article; third film supply means for supplying a third web of film above the article; said sealing-cutting means being adapted to join said third web into said junction concurrently with joining said first and second web into said junction.
Claim 13
Dependent Claim
46 words
Apparatus according to claim 9 further including: fourth film supply means for supplying a fourth web of film below the article. said sealing-cutting means being adapted to join said fourth web into said junction concurrently with joining said first, second and third webs into said junction.
References Cited (Backward Citations)
US2864212A
Cited
US3050402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |