US3568898A Expired / Lapsed US ⏱️ 0.0 years remaining

Everting apparatus and method

Assignee: Hillshire Brands Co

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Filing: 1969-09-05

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Granted: 1971-03-09

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Expires: 1989-09-05

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Abstract

Abstract Apparatus and method for everting a supply of a tubular fabric utilizing an elongated, hollow, tubular member about the exterior of which can be collected a supply of tubular fabric by the utilization of a selectively directed air stream. The collected fabric is then directed into and through the interior of the tubular member by a second selectively directed air stream so that the inside of the fabric is turned to the outside and the fabric emerges from the tubular member in an everted condition. Various drive and guide means are incorporated to move the fabric to the tubular member and receive the fabric from the tubular member for conveyance to a remote location.

Inventors

👤 Roy J Griffin Jr

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-04 03:27

CPC Classifications

D; D06; D06G; D06G3/00; D06G3/04

Claims Analysis

Total Claims: 17

Claim 1

Independent Claim 66 words

Apparatus for everting a supply of tubular fabric comprising: an elongated tubular member having an interior channel; means directing the movement of the tubular fabric to said member; means collecting the tubular fabric supply over one end of said member; pneumatic means moving the fabric through said interior channel of said member whereby the inside of the tubular fabric is turned to the outside and everted.

Claim 2

Dependent Claim 66 words

Claim 3

Dependent Claim 29 words

Apparatus as claimed in claim 1, said directing means including fabric drive means and fabric guide means directing the tubular fabric from the fabric supply to said tubular member.

Claim 4

Dependent Claim 42 words

Apparatus as claimed in claim 2, said fabric guide and drive means including a frame extending to at least one end of said tubular member and at least one pair of variable speed delivery rolls adjacent said frame moving the tubular fabric.

Claim 5

Dependent Claim 133 words

Apparatus as claimed in claim 3, said collecting means including outer air means directing air flow to engage and position the fabric over said member end, said air means including outer manifold means positioned on said member end having a plurality of air jets directing air flow against the fabric to urge the fabric about said tubular member, and said outer manifold means comprising an outer annular manifold ring encircling the exterior of said tubular member adjacent said member end, an air source, and air line means extending from said source to said outer annular ring, and said air jets including a plurality of apertures in and around said ring, said apertures positioned to direct air flow outwardly from and at angles less than 90* with the longitudinal axis of said tubular member.

Claim 6

Dependent Claim 26 words

Apparatus as claimed in claim 1, said collecting means including outer air means directing air flow to engage and position the fabric over said member end.

Claim 7

Dependent Claim 39 words

Apparatus as claimed in claim 5, said outer air means including outer manifold means positioned on said member end having a plurality of air jets directing air flow against the fabric to urge the fabric about said tubular member.

Claim 8

Dependent Claim 80 words

Apparatus as claimed in claim 6, said outer manifold means comprising an outer annular manifold ring encircling the exterior of said tubular member adjacent said member end, an air source, and air line means extending from said source to said outer annular ring, and said air jets including a plurality of apertures in and around said ring, said apertures positioned to direct air flow outwardly from and at angles less than 90* with the longitudinal axis of said tubular member.

Claim 9

Dependent Claim 26 words

Apparatus as claimed in claim 1, said pneumatic means including inner air means directing air flow to displace the fabric through said tubular member interior channel.

Claim 10

Dependent Claim 41 words

Apparatus as claimed in claim 8, said inner air means including inner manifold means positioned adjacent said tubular member end having a plurality of air jets directing air flow against the fabric to urge it through said tubular member interior channel.

Claim 11

Dependent Claim 74 words

Apparatus as claimed in claim 9, said inner manifold means including an inner annular manifold ring encircling said member interior channel, an air source, and air line means extending from said source to said annular ring, and said air jets including of plurality of apertures in and around said ring, said apertures positioned to direct air flow inwardly toward and at angles of less than 90* with the longitudinal axis of said tubular member.

Claim 12

Dependent Claim 130 words

Apparatus as claimed in claim 1, said pneumatic means including inner air means directing air flow to displace the fabric through said tubular member interior channel, said inner air means including inner manifold means positioned adjacent said tubular member end having a plurality of air jets directing air flow against the fabric to urge it through said tubular member interior channel, and said inner manifold means having an inner annular manifold ring encircling said member interior channel, and air source, and air line means extending from said source to said annular ring, and said air jets including a plurality of apertures in and around said ring, said apertures positioned to direct air flow inwardly toward and at angles of less than 90* with the longitudinal axis of said tubular member.

Claim 13

Dependent Claim 68 words

Apparatus as claimed in claim 11 further comprising roller means facilitating movement of the fabric over said tubular member end and through said tubular member interior channel, said roller means including a plurality of free spinning rollers rotatably held about the annular edge of said tubular member, and said apparatus further comprising means drawing the everted fabric outwardly from said tubular member interior channel to a remote location.

Claim 14

Dependent Claim 47 words

Apparatus as claimed in claim 1 further comprising roller means facilitating movement of the fabric over said tubular member end and through said tubular member interior channel, said roller means including a plurality of free spinning rollers rotatably held about the annular edge of said tubular member.

Claim 15

Dependent Claim 27 words

Apparatus as claimed in claim 13 further comprising exterior fabric drawing means drawing the everted fabric outwardly from said tubular member interior channel to a remote location.

Claim 16

Independent Claim 71 words

A method of everting a supply of tubular fabric comprising the steps of: directing the tubular fabric to one end of an elongated tubular member; collecting the fabric around and onto the member by selectively directed air flow; inserting and displacing the fabric into and through an interior channel of the member by selectively directed air flow; and drawing the fabric outwardly from the member interior channel in an everted condition.

Claim 17

Independent Claim 71 words

References Cited (Backward Citations)

US604512A Cited

US775992A Cited

US941164A Cited

US878995A Cited

US952274A Cited

US1030336A Cited

US2314202A Cited

US2428943A Cited

US3215321A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-03-08	1974-09-07	1975-03-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-03-08	1978-09-07	1979-03-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-03-08	1982-09-07	1983-03-09	$7700.00	Window Closed / Lapsed

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