Patent US2123491A successfully refreshed from Google Patents.
Patent US3928939A successfully refreshed from Google Patents.
US3928939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of wrapping elongate cylindrical objects
Assignee: John Edwards and Associates Inc
•
Filing: 1974-10-29
•
Granted: 1975-12-30
•
Expires: 1994-10-29
Abstract
Abstract The cylindrical object is covered with a strip of sheet material having a width less than the length of the object and is applied by rotating the object while feeding the sheet material at a right angle to the rotational axis of the object to provide convolute windings around opposite end portions of the object and guiding the sheet material in angular relationship to the rotational axis of the object to provide spiral windings around the medial portion of the object. A pair of rolls support and rotate the object while the sheet material is fed from a carriage which moves along a path of travel parallel to the drive rolls and the angular position of the carriage is varied to thereby change the relationship between the rotational axis of the supply roll and the rotational axis of the object so as to permit both convolute and spiral windings to be applied to the object.
Inventors
- 👤 John M Edwards
- 👤 James D Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:57
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
206 words
A method of covering a cylindrical object with elongate sheeT material having a width less than the length of said object, said method comprising steps of a. rotating said object, b. withdrawing the elongate sheet material from a rotatable supply roll and wrapping it around one end portion of said object while maintaining the rotational axis of the sheet material supply roll parallel to the rotational axis of said object to provide at least one convolute winding around said one end portion of said object, c. continuing to withdraw the elongate sheet material from the supply roll and wrapping it around the medial portion of said object while moving the sheet material supply roll parallel to said object and with the rotational axis of the supply roll in angular relationship to the rotational axis of said object to provide spiral windings around said medial portion of said object, and d. continuing to withdraw the elongate sheet material from the supply roll and wrapping it around the other end portion of said object while maintaining the rotational axis of the sheet material supply roll parallel to the rotational axis of said object to provide at least one convolute winding around said other end portion of said object.
Claim 2
Independent Claim
206 words
A method of covering a cylindrical object with elongate sheeT material having a width less than the length of said object, said method comprising steps of a. rotating said object, b. withdrawing the elongate sheet material from a rotatable supply roll and wrapping it around one end portion of said object while maintaining the rotational axis of the sheet material supply roll parallel to the rotational axis of said object to provide at least one convolute winding around said one end portion of said object, c. continuing to withdraw the elongate sheet material from the supply roll and wrapping it around the medial portion of said object while moving the sheet material supply roll parallel to said object and with the rotational axis of the supply roll in angular relationship to the rotational axis of said object to provide spiral windings around said medial portion of said object, and d. continuing to withdraw the elongate sheet material from the supply roll and wrapping it around the other end portion of said object while maintaining the rotational axis of the sheet material supply roll parallel to the rotational axis of said object to provide at least one convolute winding around said other end portion of said object.
Claim 3
Dependent Claim
34 words
A method according to claim 1 wherein the elongate sheet material is heat sealable, and including the step of heating the covered cylindrical object to seal together the overlapping portions of the sheet material.
Claim 4
Dependent Claim
31 words
A method according to claim 2 wherein the sheet material is also heat shrinkable, and wherein the sheet material shrinks into tight engagement with the cylindrical object during the heating step.
Claim 5
Dependent Claim
53 words
A method according to claim 1 wherein the convolute windings around opposite end portions of said object extend outwardly beyond the opposed ends of said object, and including the step of folding the outwardly extending portions of said convolute windings over the ends of said object to complete a package enclosing said object.
Claim 6
Dependent Claim
71 words
A method according to claim 4 wherein the sheet material is heat sealable and heat shrinkable, and including the step of heating the covered cylindrical object to shrink the sheet material into tight contact with said object to seal together the overlying portions of the sheet material and to seal the opposed ends folded inwardly over the ends of said object to complete a package completely enclosing and protecting said object.
Claim 7
Dependent Claim
82 words
A method according to claim 1 wherein said elongate sheet material is heat shrinkable, and including the step of heating one side edge portion of the heat shrinkable sheet material at the beginning of the spiral wrapping of the medial portion of said object, and heating the opposite side edge portion of the heat shrinkable sheet material at the completion of the spiral wrapping of the medial portion of said object to prevent the accumulation of excess sheet material around said object.
Claim 8
Dependent Claim
159 words
A method according to claim 1 including the further steps of continuing to withdraw the elongate sheet material from the supply roll and wrapping it around the medial portion of said object while moving sheet material supply roll parallel to said object and with the rotational axis of the supply roll in an opposite angular relationship to the angular relationship of the spiral winding applied in step (c) to provide second spiral windings around the medial portion of said cylindrical object, and continuing to withdraw the elongate sheet material from the supply roll and wrapping it around said one end portion of said object while maintaining the rotational axis of the sheet material supply roll parallel to the rotational axis of said object to provide at least one additional convolute winding around said one end portion and over the convolute winding formed in step (b) to provide a double convolute winding around said one end portion of said object.
References Cited (Backward Citations)
US2716315A
Cited
US2878628A
Cited
US3191289A
Cited
US3412524A
Cited
US3549077A
Cited
US3708132A
Cited
US3788199A
Cited
US3857486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |