Patent US3863425A successfully refreshed from Google Patents.
US3863425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for wrapping elongate cylindrical objects
Assignee: JOHN EDWARDS AND ASSOCIATES IN
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Filing: 1973-05-14
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Granted: 1975-02-04
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Expires: 1993-05-14
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
2026-10-30 22:33
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
189 words
An apparatus for covering elongate cylindrical objects with elongate sheet material having a width less than the length of said object, said apparatus comprising a. a pair of rolls suppoRted for rotation in spaced apart position with the distance therebetween being less than the diameter of said object so that said object may be supported between and on said rolls, b. means for driving at least one of said rolls to impart rotation to said object while it is supported on said rolls, c. carriage means supporting a supply roll of said elongate sheet material adjacent one side of said pair of rolls, d. drive means for moving said carriage along a path of travel parallel to said pair of rolls, and e. control means for varying the angular position of said carriage during movement of said carriage by said drive means to thereby change the angular relationship between the rotational axis of said supply roll and the rotational axis of said object and to form convolute windings of the sheet material at opposite ends of said object with overlapping spiral windings in the medial portion of said object.
Claim 2
Independent Claim
189 words
An apparatus for covering elongate cylindrical objects with elongate sheet material having a width less than the length of said object, said apparatus comprising a. a pair of rolls suppoRted for rotation in spaced apart position with the distance therebetween being less than the diameter of said object so that said object may be supported between and on said rolls, b. means for driving at least one of said rolls to impart rotation to said object while it is supported on said rolls, c. carriage means supporting a supply roll of said elongate sheet material adjacent one side of said pair of rolls, d. drive means for moving said carriage along a path of travel parallel to said pair of rolls, and e. control means for varying the angular position of said carriage during movement of said carriage by said drive means to thereby change the angular relationship between the rotational axis of said supply roll and the rotational axis of said object and to form convolute windings of the sheet material at opposite ends of said object with overlapping spiral windings in the medial portion of said object.
Claim 3
Dependent Claim
73 words
An apparatus according to claim 1 including f. conveyor means supported between said pair of rolls, and g. means for moving said conveyor means between a raised operative position where said cylindrical object is maintained out of engagement with said pair of rolls so that said cylindrical object may be moved in a longitudinal direction and a lowered inoperative position where said cylindrical object is supported between and on said pair of rolls.
Claim 4
Dependent Claim
19 words
An apparatus according to claim 2 wherein said conveying means (f) comprises a plurality of spaced apart conveyor rollers.
Claim 5
Dependent Claim
45 words
An apparatus according to claim 3 wherein said conveyor rollers are supported in a longitudinal frame extending between said pair of rolls and wherein said means (g) comprises air cylinders operatively connected to said frame and being operable to raise and lower said conveyor rollers.
Claim 6
Dependent Claim
46 words
An apparatus according to claim 1 wherein said carriage means comprises track means extending parallel to said pair of rolls (a) and spaced therefrom, a support plate supported for movement along said track means and a pivot plate supported for pivotal movement on said support plate.
Claim 7
Dependent Claim
38 words
An apparatus according to claim 5 wherein said pivot plate is pivoted intermediate its ends on said support plate so that it may be pivoted in opposed angular relationship to the rotational axis of said pair of rolls.
Claim 8
Dependent Claim
41 words
An apparatus according to claim 6 wherein said pivot plate supports a pair of support rolls for said supply roll, and a pair of nip rolls through which the elongate sheet material passes as it is withdrawn from said supply roll.
Claim 9
Dependent Claim
33 words
An apparatus according to claim 7 wherein adjustable brake means is provided for said nip rolls to vary the amount of force necessary to withdrawn the elongate sheet material from said supply roll.
Claim 10
Dependent Claim
24 words
An apparatus according to claim 8 wherein said brake means comprises an electromagnetic brake operatively associated with at least one of said nip rolls.
Claim 11
Dependent Claim
21 words
An apparatus according to claim 1 including means for cutting said elongate sheet material between said supply roll and said object.
Claim 12
Dependent Claim
69 words
An apparatus according to claim 10 wherein said sheet material cutting means comprises an electrical resistance wire supported on said pivot plate and normally disposed above the level of the sheet material as it moves from said nip rolls to said object, and including means for moving said electrical resistance wire transversely of and through the sheet material to cut the same at the end of a covering operation.
Claim 13
Dependent Claim
61 words
An apparatus according to claim 1 wherein said drive means (d) includes a reversible electric motor, a drive chain operatively connected to said reversible electric motor and extending between said track means, and means drivingly connecting said drive chain to said support plate for moving the same along said tract means, depending upon the direction of rotation of said reversible motor.
Claim 14
Dependent Claim
61 words
A machine according to claim 12 wherein said control means (e) comprises gear means carried by said support platE, a drive gear carried by said pivot plate and engaging said gear means, and a reversible electric motor drivingly connected to said drive gear for selectively rotating the same and imparting pivotal movement of said pivot plate relative to said support plate.
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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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |