Patent US3798870A successfully refreshed from Google Patents.
US3798870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for applying a jacket to an elongated body
Assignee: Owens Corning
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Filing: 1972-04-24
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Granted: 1974-03-26
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Expires: 1992-04-24
Abstract
Abstract The disclosure embraces a method of and apparatus for withdrawing tubular jacketing or organic film material from a supply and applying the withdrawn portion onto an elongated body such as a tubular fibrous duct involving expanding the withdrawn portion of the film material by differential pressure, inserting the elongated body in the withdrawn expanded portion, and equalizing the pressures to contract the withdrawn portion to snugly engage and encase the body.
Inventors
- 👤 R Kanner
- 👤 C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:36
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/10; B65B9/13; B65B9/14
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
83 words
The method of encasing an elongated tubular body with expandable tubular jacketing material including withdrawing from a supply a portion of the tubular material in a chamber, establishing reduced pressure in the chamber exteriorly of the withdrawn portion of the tubular material to expand the withdrawn portion, inserting the tubular body lengthwise into the expanded withdrawn portion of the material, and increasing the pressure in the chamber contracting the withdrawn portion of the material into intimate engagement with the periphery of the body.
Claim 2
Independent Claim
83 words
The method of encasing an elongated tubular body with expandable tubular jacketing material including withdrawing from a supply a portion of the tubular material in a chamber, establishing reduced pressure in the chamber exteriorly of the withdrawn portion of the tubular material to expand the withdrawn portion, inserting the tubular body lengthwise into the expanded withdrawn portion of the material, and increasing the pressure in the chamber contracting the withdrawn portion of the material into intimate engagement with the periphery of the body.
Claim 3
Dependent Claim
52 words
The method according to claim 1 including the steps of moving the jacket-encased body lengthwise out of the chamber thereby withdrawing a portion of the film from the supply, and severing the jacket encasing the fibrous body from the portion withdrawn from the supply by the lengthwise movement of the jacket-encased body.
Claim 4
Independent Claim
88 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing from a supply a portion of tubular film in a chamber, establishing reduced pressure in the chamber exteriorly of the withdrawn portion of the tubular film to expand the portion, limiting the expanSion of the tubular film, inserting the tubular fibrous body lengthwise into the expanded tubular withdrawn portion, and increasing the pressure in the chamber contracting the withdrawn portion of the film into intimate engagement with the periphery of the fibrous body.
Claim 5
Independent Claim
88 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing from a supply a portion of tubular film in a chamber, establishing reduced pressure in the chamber exteriorly of the withdrawn portion of the tubular film to expand the portion, limiting the expanSion of the tubular film, inserting the tubular fibrous body lengthwise into the expanded tubular withdrawn portion, and increasing the pressure in the chamber contracting the withdrawn portion of the film into intimate engagement with the periphery of the fibrous body.
Claim 6
Independent Claim
92 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing from a supply a portion of tubular film in a chamber, exhausting air from the chamber establishing a partial vacuum in the chamber exteriorly of the withdrawn portion of the tubular film to expand the withdrawn portion, limiting the expansion of the withdrawn portion, inserting the tubular fibrous body lengthwise into the expanded tubular withdrawn portion, and venting the chamber contracting the withdrawn portion of the film into intimate engagement with the periphery of the fibrous body.
Claim 7
Independent Claim
92 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing from a supply a portion of tubular film in a chamber, exhausting air from the chamber establishing a partial vacuum in the chamber exteriorly of the withdrawn portion of the tubular film to expand the withdrawn portion, limiting the expansion of the withdrawn portion, inserting the tubular fibrous body lengthwise into the expanded tubular withdrawn portion, and venting the chamber contracting the withdrawn portion of the film into intimate engagement with the periphery of the fibrous body.
Claim 8
Independent Claim
122 words
The method of encasing an elongated tubular body with an expandable tubular film including advancing tubular film lengthwise in a walled chamber from a supply of the tubular film in flattened condition, establishing a seal of the open end region of the film with the chamber at the region of an opening in the chamber wall, establishing reduced pressure in the interior of the chamber to expand the portion of the tubular film advanced from the supply, limiting the expansion of the tubular film, inserting the tubular body through the open end of the tubular film into the expanded tubular film, and increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the tubular body.
Claim 9
Independent Claim
122 words
The method of encasing an elongated tubular body with an expandable tubular film including advancing tubular film lengthwise in a walled chamber from a supply of the tubular film in flattened condition, establishing a seal of the open end region of the film with the chamber at the region of an opening in the chamber wall, establishing reduced pressure in the interior of the chamber to expand the portion of the tubular film advanced from the supply, limiting the expansion of the tubular film, inserting the tubular body through the open end of the tubular film into the expanded tubular film, and increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the tubular body.
Claim 10
Dependent Claim
54 words
The method according to claim 5 including the steps of moving the film-encased fibrous body lengthwise out of the chamber and thereby withdrawing a portion of the film from the supply, and severing the film encasing the fibrous body from the portion withdrawn from the supply by the lengthwise movement of the film-encased body.
Claim 11
Independent Claim
123 words
The method of encasing a tubular fibrous body with an expandable tubular film including advancing tubular film lengthwise in a chamber and through an opening in the chamber wall from a supply roll of the film, establishing a fluid-tight seal of the open end region of the film with the chamber adjacent the opening, exhausting air from the interior of the chamber to expand the portion of the tubular film to an enlarged cross sectional area, inserting the fibrous body lengthwise into the expanded film, increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the fibrous body, withdrawing the film-encased body from the chamber, and severing the film adjacent the end region of the body.
Claim 12
Independent Claim
123 words
The method of encasing a tubular fibrous body with an expandable tubular film including advancing tubular film lengthwise in a chamber and through an opening in the chamber wall from a supply roll of the film, establishing a fluid-tight seal of the open end region of the film with the chamber adjacent the opening, exhausting air from the interior of the chamber to expand the portion of the tubular film to an enlarged cross sectional area, inserting the fibrous body lengthwise into the expanded film, increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the fibrous body, withdrawing the film-encased body from the chamber, and severing the film adjacent the end region of the body.
Claim 13
Independent Claim
118 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing tubular film lengthwise in a chamber from a supply roll of the film and through an opening in the chamber wall, establishing a seal of the open end region of the film with the chamber adjacent the opening, exhausting air from the interior of the chamber to expand the withdrawn portion of the tubular film, inserting the fibrous body lengthwise into the expanded film, increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the fibrous body, removing the film-encased body from the chamber, and severing the film adjacent the end region of the removed body.
Claim 14
Independent Claim
118 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing tubular film lengthwise in a chamber from a supply roll of the film and through an opening in the chamber wall, establishing a seal of the open end region of the film with the chamber adjacent the opening, exhausting air from the interior of the chamber to expand the withdrawn portion of the tubular film, inserting the fibrous body lengthwise into the expanded film, increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the fibrous body, removing the film-encased body from the chamber, and severing the film adjacent the end region of the removed body.
Claim 15
Independent Claim
138 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing tubular film lengthwise in a walled chamber from a supply roll exteriorly of the chamber, establishing a seal of the open end region of the film with the chamber adjacent an opening in a wall of the chamber, exhausting air from the interior of the chamber to expand the withdrawn portion of the tubular film, inserting the fibrous body lengthwise into the expanded film, increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the fibrous body, moving the film-encased body lengthwise out oF the chamber and thereby withdrawing a portion of the film from the supply roll into the chamber, and severing the film from the supply adjacent the end region of the film-encased body.
Claim 16
Independent Claim
138 words
The method of encasing a tubular fibrous body with an expandable tubular film including withdrawing tubular film lengthwise in a walled chamber from a supply roll exteriorly of the chamber, establishing a seal of the open end region of the film with the chamber adjacent an opening in a wall of the chamber, exhausting air from the interior of the chamber to expand the withdrawn portion of the tubular film, inserting the fibrous body lengthwise into the expanded film, increasing the pressure in the chamber to contract the film into intimate engagement with the periphery of the fibrous body, moving the film-encased body lengthwise out oF the chamber and thereby withdrawing a portion of the film from the supply roll into the chamber, and severing the film from the supply adjacent the end region of the film-encased body.
Claim 17
Dependent Claim
88 words
Apparatus of the character disclosed, in combination, means providing a chamber, means supporting a supply of expandable tubular jacketing material, a tubular foraminous member disposed in said chamber and terminating adjacent an opening in a wall of the chamber, said tubular member adapted to receive jacketing material withdrawn from the supply, and means effecting varying pressures in the chamber to expand the withdrawn portion of the jacketing material to receive a body to be encased in the jacketing material and to contract the jacketing material about the body.
Claim 18
Dependent Claim
88 words
Apparatus of the character disclosed, in combination, means providing a chamber, means supporting a supply of expandable tubular jacketing material, a tubular foraminous member disposed in said chamber and terminating adjacent an opening in a wall of the chamber, said tubular member adapted to receive jacketing material withdrawn from the supply, and means effecting varying pressures in the chamber to expand the withdrawn portion of the jacketing material to receive a body to be encased in the jacketing material and to contract the jacketing material about the body.
Claim 19
Dependent Claim
30 words
The apparatus according to claim 10 including means for severing the jacketing material adjacent an end of the encased body after the encased body is withdrawn from the tubular member.
Claim 20
Dependent Claim
83 words
Apparatus of the character disclosed, in combination, means providing a chamber, means supporting a supply of expandable tubular jacketing material, a tubular foraminous member disposed in said chamber, said tubular member adapted to receive jacketing material withdrawn from the supply, means establishing differential pressure in the chamber effective to expand the withdrawn tubular jacketing material to receive a body within the expanded material, and means reducing the effectiveness of the differential pressure to contract the jacketing material into encasing engagement with the body.
Claim 21
Dependent Claim
83 words
Apparatus of the character disclosed, in combination, means providing a chamber, means supporting a supply of expandable tubular jacketing material, a tubular foraminous member disposed in said chamber, said tubular member adapted to receive jacketing material withdrawn from the supply, means establishing differential pressure in the chamber effective to expand the withdrawn tubular jacketing material to receive a body within the expanded material, and means reducing the effectiveness of the differential pressure to contract the jacketing material into encasing engagement with the body.
Claim 22
Dependent Claim
159 words
Apparatus of the character disclosed, in combination, means providing a walled chamber, means supporting a supply of expandable tubular jacketing material in flattened condition, a plate providing an end wall of the chamber, tubular means disposed in the chamber and extending through an opening in the plate, the wall region of the tubular means within the chamber having a plurality of openings therein, said tubular means adapted to receive jacketing material withdrawn from the supply, means for establishing reduced pressure in the chamber to expand the withdrawn tubular jacketing material into engagement with the interior surface of the tubular means whereby a body may be inserted within the expanded material, means effective to normalize the pressure in the chamber to contract the jacketing material into encasing engagement with the body, and means for severing the jacketing material from the supply at a region adjacent the end of the jacketed body after the same is withdrawn from the tubular means.
Claim 23
Dependent Claim
159 words
Apparatus of the character disclosed, in combination, means providing a walled chamber, means supporting a supply of expandable tubular jacketing material in flattened condition, a plate providing an end wall of the chamber, tubular means disposed in the chamber and extending through an opening in the plate, the wall region of the tubular means within the chamber having a plurality of openings therein, said tubular means adapted to receive jacketing material withdrawn from the supply, means for establishing reduced pressure in the chamber to expand the withdrawn tubular jacketing material into engagement with the interior surface of the tubular means whereby a body may be inserted within the expanded material, means effective to normalize the pressure in the chamber to contract the jacketing material into encasing engagement with the body, and means for severing the jacketing material from the supply at a region adjacent the end of the jacketed body after the same is withdrawn from the tubular means.
Claim 24
Dependent Claim
36 words
The combination according to claim 13 including removable means for securing the plate to the chamber whereby to accommodate plates equipped with tubular means of different sizes for applying jacketing material to bodies of different sizes.
Claim 25
Dependent Claim
159 words
Apparatus of the character disclosed, in combination, a housing providing a chamber, a supply of expandable tubular jacketing material disposed exteriorly of the chamber, a rear wall of said housing having an opening through which the tubular jacketing material is advanced from the supply into the chamber, sealing means engaging the jacketing material to seal the entrance in the chamber at the region of the jacketing material, a tubular member in the chamber adapted to receive the tubular jacketing material, said tubular member terminating adjacent an opening in the front wall of the chamber, said tubular member being sealingly engaged with the front wall, said tubular member having a perforated wall, means for exhausting air from the chamber to expand the jacketing material within the tubular member to receive a body to be encased in the jacketing material, and means effective to normalize the pressure in the chamber to contract the jacketing material about the periphery of the body.
Claim 26
Dependent Claim
159 words
Apparatus of the character disclosed, in combination, a housing providing a chamber, a supply of expandable tubular jacketing material disposed exteriorly of the chamber, a rear wall of said housing having an opening through which the tubular jacketing material is advanced from the supply into the chamber, sealing means engaging the jacketing material to seal the entrance in the chamber at the region of the jacketing material, a tubular member in the chamber adapted to receive the tubular jacketing material, said tubular member terminating adjacent an opening in the front wall of the chamber, said tubular member being sealingly engaged with the front wall, said tubular member having a perforated wall, means for exhausting air from the chamber to expand the jacketing material within the tubular member to receive a body to be encased in the jacketing material, and means effective to normalize the pressure in the chamber to contract the jacketing material about the periphery of the body.
Claim 27
Dependent Claim
38 words
The combination according to claim 15 wherein the sealing means adjacent the entrance of the jacketing material into the housing comprises rolls engaging the jacketing material, and means mounted bY the housing in sealing engagement with the rolls.
Claim 28
Dependent Claim
23 words
The combination according to claim 15 including means for venting the chamber, and movable valve means for opening and closing the venting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |