US2621867A - Expansible mandrel - Google Patents

Expansible mandrel Download PDF

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Publication number
US2621867A
US2621867A US178322A US17832250A US2621867A US 2621867 A US2621867 A US 2621867A US 178322 A US178322 A US 178322A US 17832250 A US17832250 A US 17832250A US 2621867 A US2621867 A US 2621867A
Authority
US
United States
Prior art keywords
spindle
bag
casing
rings
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US178322A
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English (en)
Inventor
Karl E L Grettve
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application granted granted Critical
Publication of US2621867A publication Critical patent/US2621867A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid
    • B65H75/2437—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid comprising a fluid-pressure-actuated elastic member, e.g. a diaphragm or a pneumatic tube
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/10—Expanding
    • Y10T279/1021—Fluid-pressure actuator
    • Y10T279/1024—Directly expanding jaws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/12—Chucks or sockets with fluid-pressure actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/12—Chucks or sockets with fluid-pressure actuator
    • Y10T279/1216—Jaw is expansible chamber; i.e., bladder type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/12—Chucks or sockets with fluid-pressure actuator
    • Y10T279/1224—Pneumatic type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/26—Work driver
    • Y10T82/266—Mandrel
    • Y10T82/268—Expansible

Definitions

  • Win-ding of paper in roll-s used to be performed on cylindrical paper casings which are passed over a rotatable driving spindle and are held fast thereon by means of conical plugs, which are driven into the ends of the casing and kept in place by stop screws or the like.
  • the said method of driving plugs into the ends of the paper casing may easily destroy the casing, the ends of which crack and cause the casing to slip or entirely come loose. A renewed use of such destroyed casings is impossible.
  • the present invention has for its object to remedy said inconveniences thereby that the winding casings are held fast upon their driving spindles by an expanding means applied between the spindle and the casing thereby causing a sufiicient friction upon the casing.
  • a device for obtaining said result consists of a cylind-rical bag of rubber or the like, the inner diameter of which suits the diameter of the spindle and the outer diameter is adapted to the inner diameter of the casing, whereby the inner space of the bag is apt to be connected to a source of compressed air for the purpose of expanding the bag between the spindle and the casing so that the casing will be brought along by the spindle by means of friction.
  • FIG. 1 shows the device applied to a driving spindle, partly in section
  • Fig. 2 shows a section along line IIII in Fig. 1.
  • a bag 3 of rubber is passed over the spindle 2 and consists of two rubber hoses disposed outside each other.
  • the inner hose is provided with a pipe connection 4 with valve 5 for communication with a source of compressed air.
  • the two hoses are then melted together at their ends.
  • an expansion tube 6 of steel or other material is passed over and is provided with longitudinal slits 1.
  • the whole of it is suitably kept together by means of rings 8 which are fixed to the spindle at the ends of the device by means of conical pins 10.
  • the expansion tube 6 is then fixed to the rings by means of knots or pegs 9 on the rings 8 fitting into notches in the ends of the tube.
  • a card board casing (not shown) is passed over it, that is over the expansion tube 6, and compressed air is introduced through the valve 5, so that pressure is applied to the inner of the bag and acts upon the spindle 2 and the expansion tube 6 and therefrom on the card board casing. This casing is then held fast by friction during the winding procedure. When the wound paper roll then is to be removed from the spindle the air is let out from the bag. Since the volume of the bag is quite small, only a small quantity of compressed air has to be used each time. The card board casings remain in completely good condition.
  • a device for holding a winding casing for paper rolls comprising a spindle, an elongated eiastic cylindrical bag around the spindle, valve and conduit means connected into said bag adapted to introduce compressed air in said bag, an expandable tube surrounding the bag, said expandable tube having open ends and longitudinally extending slits on the periphery thereof inwardly spaced from said ends, and rings fixed to said spindle and contacting said open ends to close the same and maintain the various parts in assembled relationship.
  • a device as claimed in claim 1 and pins securing said rings to said spindle, said rings having portions extending into said open ends, said expandable tube having openings therethrough adjacent said ends and pegs extending through said openings and secured in said rings for fixing said expandable tube to said rings.
  • a device as claimed in claim 2 said spindle having a cut out portion therein extending partly inside the assembled tube and being open outwardly of one of said rings closing said open ends of said expandable tube, said conduit means extending from said bag through said out out portion and beyond said ring in said open portion.

Landscapes

  • Winding Of Webs (AREA)
  • Making Paper Articles (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US178322A 1950-02-10 1950-08-08 Expansible mandrel Expired - Lifetime US2621867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2621867X 1950-02-10

Publications (1)

Publication Number Publication Date
US2621867A true US2621867A (en) 1952-12-16

Family

ID=32303023

Family Applications (2)

Application Number Title Priority Date Filing Date
US178322A Expired - Lifetime US2621867A (en) 1950-02-10 1950-08-08 Expansible mandrel
US263653A Expired - Lifetime US2711863A (en) 1950-02-10 1951-12-27 Expansible mandrel

Family Applications After (1)

Application Number Title Priority Date Filing Date
US263653A Expired - Lifetime US2711863A (en) 1950-02-10 1951-12-27 Expansible mandrel

Country Status (7)

Country Link
US (2) US2621867A (ro)
BE (1) BE508010A (ro)
CH (1) CH304049A (ro)
DE (2) DE933310C (ro)
FR (1) FR1051455A (ro)
GB (1) GB715342A (ro)
LU (1) LU31181A1 (ro)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707082A (en) * 1953-04-13 1955-04-26 William F Collard Pneumatic roll chuck
US2711863A (en) * 1950-02-10 1955-06-28 Lilla Edets Pappersbruks Ab Expansible mandrel
US2828092A (en) * 1953-03-26 1958-03-25 Jr Walter P Taylor Flexible material package
US2849192A (en) * 1955-10-20 1958-08-26 Us Shaft Company Core engaging shaft
US3022573A (en) * 1958-04-15 1962-02-27 Herbert L Bullock Tool for installing and removing rubber rollers
US3029037A (en) * 1960-05-10 1962-04-10 Arthur T Williams Expandable shaft
US3097808A (en) * 1961-08-21 1963-07-16 Charles R Tidland Expansion chuck
US3139242A (en) * 1961-05-29 1964-06-30 Chimiotex Yarn package support
US3185517A (en) * 1961-05-16 1965-05-25 Kobe Inc Apparatus for simultaneously running multiple tubing strings
US3202432A (en) * 1963-03-07 1965-08-24 Gordon N Cameron Hydraulically actuated arbor and chuck construction
US3233315A (en) * 1962-12-04 1966-02-08 Plastic Materials Inc Pipe aligning and joining apparatus
US3298626A (en) * 1965-07-12 1967-01-17 Kimberly Clark Co Expansible mandrel
US3592405A (en) * 1969-10-09 1971-07-13 Michael M Young Pneumatically expansible mandrel
US4006930A (en) * 1961-03-15 1977-02-08 The United States Of America As Represented By The United States Energy Research And Developmnent Administration Manipulator for hollow objects
US4093137A (en) * 1977-05-19 1978-06-06 Ppg Industries, Inc. Expandable collet
DE3028967A1 (de) * 1980-07-30 1982-03-04 Anton Torshälla Daubner Expansionsachse
US4339022A (en) * 1979-06-25 1982-07-13 Lawrence Hoover Film wrapping dispenser having a fluid pressure actuated, controlled drag shaft
US4467977A (en) * 1982-01-27 1984-08-28 Giovanni Gattrugeri Expanding headpiece for reels in general
US4792076A (en) * 1986-07-21 1988-12-20 Grapha-Holding Ag Web transporting apparatus
US4928593A (en) * 1988-02-12 1990-05-29 Schablonentechnik Kufstein Gmbh Tensioning roller, and device provided with such a tensioning roller
EP0683046A1 (fr) * 1994-05-19 1995-11-22 Jean Francille Dispositif de montage de manchons d'impression sur des cylindres supports de machines flexographiques
EP1035062A2 (de) * 1999-03-10 2000-09-13 Spanntec GmbH, Spann- und Wickeltechnik Rotierbares Tragelement
US20070152094A1 (en) * 2005-11-17 2007-07-05 Deacon David A Coreless winding apparatus
US20100164187A1 (en) * 2007-03-06 2010-07-01 The University Of Sheffield Adaptive design of fixture for thin-walled shell/cylindrical components
US20120133103A1 (en) * 2009-02-20 2012-05-31 Rolls-Royce Plc Fixture for securing a thin-walled component
US9635985B2 (en) 2010-11-03 2017-05-02 Solaris Paper, Inc. Spindle for roll paper products
US9635986B2 (en) 2010-11-03 2017-05-02 Solaris Paper, Inc. Spindle and adapter for roll paper product dispensers
US10400803B2 (en) * 2014-03-11 2019-09-03 Corebon Ab Friction connecting means
US10759621B2 (en) 2017-11-29 2020-09-01 Jennerjahn Machine, Inc. Paper rewinding machine having a hydraulic extractor
US11305507B2 (en) 2018-02-14 2022-04-19 Pregis Innovative Packaging Llc Heating device for a heating and sealing system
US11312520B2 (en) 2018-02-14 2022-04-26 Pregis Innovative Packaging Llc Heating element for inflation and sealing system
US11407193B2 (en) * 2018-02-14 2022-08-09 Pregis Innovative Packaging Llc Guide member with expansion element for inflation and sealing assembly
US12059864B2 (en) 2018-02-14 2024-08-13 Pregis Innovative Packaging Llc Isolation device in a heating and sealing system

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876961A (en) * 1955-10-18 1959-03-10 Joseph W Cole Roll shaft
DE1047002B (de) * 1956-01-20 1958-12-18 Goebel Gmbh Maschf Wickelwelle fuer Material-, insbesondere Papierbahnen
US2971765A (en) * 1957-08-16 1961-02-14 A & C Engineering Co Hydraulically expansible arbor
US3053467A (en) * 1958-12-04 1962-09-11 Nashua Ind Machine Corp Expansible shaft
US3104074A (en) * 1961-02-27 1963-09-17 Beloit Eastern Corp Pneumatic core shaft
US3218894A (en) * 1963-05-06 1965-11-23 Celanese Corp Cutting rolled thermoplastic sheet
US3214109A (en) * 1963-06-12 1965-10-26 Amals Gjuteri Och Mek Nerkstad Drive spindle
FR1462876A (fr) * 1966-01-04 1966-12-16 Mandrin d'entraînement expansible à air comprimé
US3430882A (en) * 1967-06-27 1969-03-04 Frank W Moynes Expandable arbor
FR2341511A1 (fr) * 1976-02-19 1977-09-16 Gaudin Jean Perfectionnements apportes aux mandrins a expansion pneumatique
US4135677A (en) * 1977-07-14 1979-01-23 Cedco, Inc. Pneumatic shafts, chucks and lifts for roll stock
US4195792A (en) * 1978-12-11 1980-04-01 Hall Melvin D Expandable mandrels
DE2856066A1 (de) * 1978-12-23 1980-07-10 Heuser Ohg Hans Ed Friktionswickelwelle, insbesondere fuer rollenschneid- und wickelmaschinen
US4317577A (en) * 1980-03-19 1982-03-02 Cameron Gordon N Rotary expandable tool with hydraulic internal intensifier
AU3203389A (en) * 1988-03-01 1989-09-22 Pacwire Oy A.B. Strengthener for cylindrical items
CA2228020C (en) * 1997-07-30 2006-03-28 Donald J. Salzsauler Method and apparatus for producing coreless rolls of sheet material
US20070278342A1 (en) * 2006-05-31 2007-12-06 3M Innovative Properties Company Reel assembly for winding web materials
SE534007C2 (sv) * 2009-04-03 2011-03-29 Core Link Ab Anordning för hantering av hylsor med och utan papper
US20150307315A1 (en) 2014-04-28 2015-10-29 Paper Converting Machine Company Italia Spa Flexible winding mandrel with core segments for producing rolls of wound paper
CN112390088A (zh) * 2020-11-24 2021-02-23 佛山市洪峰机械有限公司 一种收卷头装置
CN113120700B (zh) * 2021-05-11 2021-10-26 浙江晶达建材科技有限公司 高分子改性沥青瓦送料流水线上的内轴自动支撑装置
CN113353727B (zh) * 2021-06-17 2022-09-09 长沙衡开智能科技有限公司 焊丝层绕机的自动调整盘宽装置

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US2366999A (en) * 1942-03-21 1945-01-09 Hudson Sharp Machine Co Web rewinding machine
US2520126A (en) * 1948-01-30 1950-08-29 Crown Zellerbach Corp Expansible shaft

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US1315177A (en) * 1919-09-02 biegh
US452854A (en) * 1891-05-26 Richard smith
DE235325C (ro) * 1910-07-12
GB191412346A (en) * 1914-05-19 1915-05-19 Alfred Ernest Terry Improvements in or relating to Holders for Crochet Balls and the like.
US1297809A (en) * 1918-07-31 1919-03-18 Lewis M Dixon Expansible mandrel
CH150582A (de) * 1930-09-13 1931-11-15 Ganz Hahn Albert Vorrichtung zum Halten von Spulen.
US2106799A (en) * 1934-08-30 1938-02-01 Celanese Corp Package core holder for yarn packaging device
US2145806A (en) * 1936-09-15 1939-01-31 Gen Tire & Rubber Co Tire building drum
US2215069A (en) * 1939-02-14 1940-09-17 Meisel Press Mfg Company Roll spindle
US2289519A (en) * 1940-05-03 1942-07-14 Herbert T Randall Winder
US2289453A (en) * 1940-05-23 1942-07-14 Herbert T Randall Winder
US2365980A (en) * 1943-09-14 1944-12-26 U S Textile Machine Company Mandrel
US2537492A (en) * 1949-07-26 1951-01-09 Edward H Tidland Expansible winder shaft
BE508010A (ro) * 1950-02-10

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2366999A (en) * 1942-03-21 1945-01-09 Hudson Sharp Machine Co Web rewinding machine
US2520126A (en) * 1948-01-30 1950-08-29 Crown Zellerbach Corp Expansible shaft

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711863A (en) * 1950-02-10 1955-06-28 Lilla Edets Pappersbruks Ab Expansible mandrel
US2828092A (en) * 1953-03-26 1958-03-25 Jr Walter P Taylor Flexible material package
US2707082A (en) * 1953-04-13 1955-04-26 William F Collard Pneumatic roll chuck
US2849192A (en) * 1955-10-20 1958-08-26 Us Shaft Company Core engaging shaft
US3022573A (en) * 1958-04-15 1962-02-27 Herbert L Bullock Tool for installing and removing rubber rollers
US3029037A (en) * 1960-05-10 1962-04-10 Arthur T Williams Expandable shaft
US4006930A (en) * 1961-03-15 1977-02-08 The United States Of America As Represented By The United States Energy Research And Developmnent Administration Manipulator for hollow objects
US3185517A (en) * 1961-05-16 1965-05-25 Kobe Inc Apparatus for simultaneously running multiple tubing strings
US3139242A (en) * 1961-05-29 1964-06-30 Chimiotex Yarn package support
US3097808A (en) * 1961-08-21 1963-07-16 Charles R Tidland Expansion chuck
US3233315A (en) * 1962-12-04 1966-02-08 Plastic Materials Inc Pipe aligning and joining apparatus
US3202432A (en) * 1963-03-07 1965-08-24 Gordon N Cameron Hydraulically actuated arbor and chuck construction
US3298626A (en) * 1965-07-12 1967-01-17 Kimberly Clark Co Expansible mandrel
US3592405A (en) * 1969-10-09 1971-07-13 Michael M Young Pneumatically expansible mandrel
US4093137A (en) * 1977-05-19 1978-06-06 Ppg Industries, Inc. Expandable collet
US4339022A (en) * 1979-06-25 1982-07-13 Lawrence Hoover Film wrapping dispenser having a fluid pressure actuated, controlled drag shaft
DE3028967A1 (de) * 1980-07-30 1982-03-04 Anton Torshälla Daubner Expansionsachse
US4467977A (en) * 1982-01-27 1984-08-28 Giovanni Gattrugeri Expanding headpiece for reels in general
US4792076A (en) * 1986-07-21 1988-12-20 Grapha-Holding Ag Web transporting apparatus
US4928593A (en) * 1988-02-12 1990-05-29 Schablonentechnik Kufstein Gmbh Tensioning roller, and device provided with such a tensioning roller
EP0683046A1 (fr) * 1994-05-19 1995-11-22 Jean Francille Dispositif de montage de manchons d'impression sur des cylindres supports de machines flexographiques
FR2720030A1 (fr) * 1994-05-19 1995-11-24 Jean Francille Dispositif de montage de manchons d'impression sur des cylindres supports de machines flexographiques.
EP1035062A2 (de) * 1999-03-10 2000-09-13 Spanntec GmbH, Spann- und Wickeltechnik Rotierbares Tragelement
EP1035062A3 (de) * 1999-03-10 2001-01-17 Spanntec GmbH, Spann- und Wickeltechnik Rotierbares Tragelement
US6454204B1 (en) 1999-03-10 2002-09-24 Spanntec Gmbh Spann-Und Wickeltechnik Rotatable supporting element
US20070152094A1 (en) * 2005-11-17 2007-07-05 Deacon David A Coreless winding apparatus
US20100164187A1 (en) * 2007-03-06 2010-07-01 The University Of Sheffield Adaptive design of fixture for thin-walled shell/cylindrical components
US20120133103A1 (en) * 2009-02-20 2012-05-31 Rolls-Royce Plc Fixture for securing a thin-walled component
US9085057B2 (en) * 2009-02-20 2015-07-21 Rolls-Royce Plc Fixture for securing a thin-walled component
US9635985B2 (en) 2010-11-03 2017-05-02 Solaris Paper, Inc. Spindle for roll paper products
US9635986B2 (en) 2010-11-03 2017-05-02 Solaris Paper, Inc. Spindle and adapter for roll paper product dispensers
US10400803B2 (en) * 2014-03-11 2019-09-03 Corebon Ab Friction connecting means
US10759621B2 (en) 2017-11-29 2020-09-01 Jennerjahn Machine, Inc. Paper rewinding machine having a hydraulic extractor
US10759624B2 (en) 2017-11-29 2020-09-01 Jennerjahn Machine, Inc. Coreless retail paper roll
US10759622B2 (en) 2017-11-29 2020-09-01 Jennerjahn Machine, Inc. Paper rewinding machine having an extraction assembly for extracting a coreless retail paper roll
US10759625B2 (en) 2017-11-29 2020-09-01 Jennerjahn Machine, Inc. Coreless retail paper roll
US10759623B2 (en) 2017-11-29 2020-09-01 Jennerjahn Machine, Inc. Coreless retail paper roll
US10981741B2 (en) 2017-11-29 2021-04-20 Jennerjahn Machine, Inc. Method of making a coreless retail paper roll
US11795022B2 (en) 2017-11-29 2023-10-24 Jennerjahn Machine, Inc. Method of making a coreless retail, paper roll
US11305507B2 (en) 2018-02-14 2022-04-19 Pregis Innovative Packaging Llc Heating device for a heating and sealing system
US11312520B2 (en) 2018-02-14 2022-04-26 Pregis Innovative Packaging Llc Heating element for inflation and sealing system
US11407193B2 (en) * 2018-02-14 2022-08-09 Pregis Innovative Packaging Llc Guide member with expansion element for inflation and sealing assembly
US12059864B2 (en) 2018-02-14 2024-08-13 Pregis Innovative Packaging Llc Isolation device in a heating and sealing system

Also Published As

Publication number Publication date
BE508010A (ro)
FR1051455A (fr) 1954-01-15
DE933310C (de) 1955-09-22
GB715342A (en) 1954-09-15
US2711863A (en) 1955-06-28
LU31181A1 (ro)
DE966798C (de) 1957-09-05
CH304049A (de) 1954-12-31

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