Patent US3764085A successfully refreshed from Google Patents.
US3764085A
Expired / Lapsed
US
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Method of and apparatus for handling material
Assignee: EIDP Inc
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Filing: 1971-08-16
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Granted: 1973-10-09
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Expires: 1991-08-16
Abstract
Abstract A material handling method including a method of threading a strip of material, such as plastic film, into a pneumatic moving means including the steps of moving a web of film from a supply source along a first path by first moving means; slitting the web as it moves in the first path to form a leader strip; moving the strip in the first path by the first moving means and into operative relationship with a pneumatic moving means threadup device; thrusting the leader strip into threadup position with respect to a pneumatic second moving means including at least a strip first transport tube having a strip entrance opening positioned adjacent the first path; cutting the thrust strip while it is in this threadup position; pulling the leading edge of the cut strip into the entrance opening of such transport tube to thread it into such pneumatic second moving means. Such web handling method further includes a method of threading such strip and the web it is formed from onto a windup roll for winding thereupon including the steps of moving the strip in a second path by the pneumatic second moving means and through a strip exit opening of a strip transport tube of the pneumatic second moving means and into operative relationship with a windup roll threadup device consisting of a curved guide chute having spaced flexible members connected thereto, such flexible members being in contact with the surface of a windup roll and air currents from the exit opening of such transport tube passing along the chute surface, through the spacings of the flexible members and adjacent the roll surface to guide, pneumatically and mechanically, the leading edge of the strip into threadup position with respect to the windup roll and into contact with the surface of such windup roll; connecting the leading edge of the strip to the windup roll; pulling the strip from the transport tube or tubes through a slot therein and into a third path defined by process rolls; expanding the strip to form the full width web; moving the full width web in the third path; and, winding such web onto the windup roll. Apparatus is provided for performing the above described method.
Inventors
- 👤 W Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:11
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/02; B26D1/03; B26D1/035; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2074
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
102 words
A material handling method including the steps of: moving a web along a first path by first moving means; slitting the web as it moves to form a leader strip; thrusting the strip into threadup position with respect to a pneumatic second moving means; completely cutting the strip transversely when it reaches this threadup position thereby forming a leading edge; pulling the Leading edge of the cut strip pneumatically to divert it into the second moving means and thread it therewithin; and moving the strip by the second moving means through at least one pneumatic strip transport tube defining a second path.
Claim 2
Dependent Claim
102 words
A material handling method including the steps of: moving a web along a first path by first moving means; slitting the web as it moves to form a leader strip; thrusting the strip into threadup position with respect to a pneumatic second moving means; completely cutting the strip transversely when it reaches this threadup position thereby forming a leading edge; pulling the Leading edge of the cut strip pneumatically to divert it into the second moving means and thread it therewithin; and moving the strip by the second moving means through at least one pneumatic strip transport tube defining a second path.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein the material is plastic film.
Claim 4
Dependent Claim
97 words
A material handling apparatus including: first moving means for moving a web along a first path; means for slitting the web as it moves to form a leader strip; means for thrusting the strip into threadup position with respect to a pneumatic second moving means; means for completely cutting the strip transversely when it reaches this position; means pulling the cut strip pneumatically to divert it into the second moving means and thread it therewithin; and such second moving means including at least one pneumatic strip transport tube defining a second path for moving the strip therethrough.
Claim 5
Dependent Claim
97 words
A material handling apparatus including: first moving means for moving a web along a first path; means for slitting the web as it moves to form a leader strip; means for thrusting the strip into threadup position with respect to a pneumatic second moving means; means for completely cutting the strip transversely when it reaches this position; means pulling the cut strip pneumatically to divert it into the second moving means and thread it therewithin; and such second moving means including at least one pneumatic strip transport tube defining a second path for moving the strip therethrough.
Claim 6
Dependent Claim
11 words
The apparatus of claim 3 wherein the material is plastic film.
Claim 7
Dependent Claim
20 words
The apparatus of claim 3 wherein the means for thrusting the strip into its threadup position includes a rounded head.
Claim 8
Dependent Claim
23 words
The apparatus of claim 5 wherein the rounded head is adapted to thrust the strip into an entrance opening of the transport tube.
Claim 9
Dependent Claim
40 words
The apparatus of claim 6 wherein rounded members are connected to opposite sides of the entrance opening of the transport tube and whereby the strip is thrust past these members by the rounded head thereby placing the strip under tension.
Claim 10
Dependent Claim
19 words
The apparatus of claim 7 wherein the means for cutting the strip is a knife having a pointed edge.
Claim 11
Dependent Claim
210 words
Apparatus for moving a web of material from a first work station to a second work station including: means for moving the web from a supply source along a first path to the first work station; means for forming a leader strip in the web as it moves; means for threading the leader strip into a pneumatic second moving means including at least one strip transport tube for moving the strip in a second path to the second work station, such strip threading means including means to push the strip into a threadup position with respect to an entrance opening of a first strip transport tube, means to completely cut the strip transversely substantially simultaneously with its reaching such threadup position thereby forming a leading edge and pneumatic means to pull such leading edge of such cut strip into the entrance opening of such first strip transport tube; means for operatively connecting the leader strip to the second work station after it moves through the second moving means; means for pulling the leader strip from the second moving means and into a third path; means for expanding the strip into web width; and means for moving the web so expanded in the third path and to the second work station.
Claim 12
Dependent Claim
210 words
Apparatus for moving a web of material from a first work station to a second work station including: means for moving the web from a supply source along a first path to the first work station; means for forming a leader strip in the web as it moves; means for threading the leader strip into a pneumatic second moving means including at least one strip transport tube for moving the strip in a second path to the second work station, such strip threading means including means to push the strip into a threadup position with respect to an entrance opening of a first strip transport tube, means to completely cut the strip transversely substantially simultaneously with its reaching such threadup position thereby forming a leading edge and pneumatic means to pull such leading edge of such cut strip into the entrance opening of such first strip transport tube; means for operatively connecting the leader strip to the second work station after it moves through the second moving means; means for pulling the leader strip from the second moving means and into a third path; means for expanding the strip into web width; and means for moving the web so expanded in the third path and to the second work station.
Claim 13
Dependent Claim
11 words
The apparatus of claim 9 wherein the material is plastic film.
Claim 14
Dependent Claim
51 words
The apparatus of claim 10 wherein the second moving means includes at least two strip transport tubes spaced from each other and shaped and positioned to conform to process configuration and wherein each tube has a strip removal slot therein, which slots face the third path of the full width web.
Claim 15
Dependent Claim
27 words
The apparatus of claim 10 wherein the leader strip is pulled from the transport tubes through the slots therein and onto process rolls defining the third path.
Claim 16
Dependent Claim
49 words
The apparatus of claim 10 wherein the second moving means is a series of pneumatic strip transport tubes spaced apart from each other and wherein the exit of one tube is operatively aligned with an entrance opening of the next-in-line tube, each of the tubes being equipped with eductors.
Claim 17
Independent Claim
88 words
An apparatus including: pneumatic means for moving a leader strip and including a transport tube having means defining an entrance opening therein; a pneumatic means threadup device positioned adjacent such entrance opening of such transport tube and including: means for thrusting the strip intO threadup position with respect to such entrance opening; means for completely cutting such strip transversely when it reaches such threadup position thereby forming a leading edge; and means for pulling the leading edge of such cut strip into the tube to thread it therewithin.
Claim 18
Independent Claim
88 words
An apparatus including: pneumatic means for moving a leader strip and including a transport tube having means defining an entrance opening therein; a pneumatic means threadup device positioned adjacent such entrance opening of such transport tube and including: means for thrusting the strip intO threadup position with respect to such entrance opening; means for completely cutting such strip transversely when it reaches such threadup position thereby forming a leading edge; and means for pulling the leading edge of such cut strip into the tube to thread it therewithin.
Claim 19
Dependent Claim
54 words
The apparatus of claim 14 wherein the pneumatic means threadup device is adapted to first thrust, then cut the strip to immediately and substantially simultaneously divert it into the entrance opening of the transport tube whereby, and substantially immediately thereafter, its leading edge is pneumatically pulled into the transport tube through the entrance opening.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |