公开(公告)号：US3272674A

公开(公告)日：1966-09-13

申请号：US19801462

申请日：1962-05-28

Applicant: UNION CARBIDE CORP

Inventor： SACHS JOHN P ,  KASTING HOWARD E ,  ERICSON ALVIN E

IPC: B29C65/00 ,  B29C65/18 ,  B65B51/14

CPC classification number: B29C66/80 ,  B29C65/18 ,  B29C65/305 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/431 ,  B29C66/4312 ,  B29C66/71 ,  B29C66/73921 ,  B29C66/81264 ,  B29C66/81427 ,  B29C66/81457 ,  B29C66/8181 ,  B29C66/8322 ,  B29C66/91421 ,  B29C66/91431 ,  B29C66/919 ,  B29C66/9241 ,  B29C66/92653 ,  B29C66/929 ,  B29C66/949 ,  B29C66/954 ,  B65B51/14 ,  B29K2023/06 ,  B29K2023/08 ,  B29K2023/12 ,  B29K2023/14

公开(公告)号：US3053723A

公开(公告)日：1962-09-11

申请号：US73886258

申请日：1958-05-29

Applicant: UNION CARBIDE CORP

Inventor： PLACH ALVIN H ,  ERICSON ALVIN E

IPC: B31B19/10 ,  B31B19/16 ,  B31B23/00

CPC classification number: B31B70/00 ,  B31B70/10 ,  B31B70/16 ,  B31B2155/00 ,  B31B2155/003 ,  B31B2160/10 ,  Y10T156/1056 ,  Y10T156/125 ,  Y10T156/1313

公开(公告)号：US3441198A

公开(公告)日：1969-04-29

申请号：US3441198D

申请日：1968-01-08

Applicant: UNION CARBIDE CORP

Inventor： ERICSON ALVIN E

IPC: B65D30/00 ,  B65D31/16 ,  B65D37/00 ,  B65D85/00

CPC classification number: B65D31/00 ,  Y10S383/907

公开(公告)号：US3309837A

公开(公告)日：1967-03-21

申请号：US40543864

申请日：1964-10-21

Applicant: UNION CARBIDE CORP

Inventor： FAUST CLIFFORD C ,  ERICSON ALVIN E

IPC: B65B51/10 ,  B65B51/14

CPC classification number: B65B51/146 ,  B65B2051/105

公开(公告)号：US3508473A

公开(公告)日：1970-04-28

申请号：US3508473D

申请日：1967-11-02

Applicant: UNION CARBIDE CORP

Inventor： ERICSON ALVIN E

IPC: B65D30/00 ,  B31B49/04

CPC classification number: B65D31/00 ,  Y10T156/12 ,  Y10T156/1313

公开(公告)号：US3081861A

公开(公告)日：1963-03-19

申请号：US4160660

申请日：1960-07-08

Applicant: UNION CARBIDE CORP

Inventor： PLACH ALVIN H ,  ERICSON ALVIN E

IPC: G06M7/10 ,  G06M9/00

CPC classification number: G06M7/10 ,  G06M9/00

公开(公告)号：CA1046726A

公开(公告)日：1979-01-23

申请号：CA219684

申请日：1975-02-10

Applicant: UNION CARBIDE CORP

Inventor： ERICSON ALVIN E

IPC: B29C67/00 ,  B26F1/26 ,  B29C45/00 ,  B29C51/00 ,  B29C61/00 ,  B29D7/01 ,  B29D99/00 ,  B65B61/02 ,  B65D33/14 ,  B29D7/00

Abstract: REINFORCED WICKET HOLE DIRECTIONALLY TEAR-PRONE A plastic film packaging bag is fabricated with directionally tear-prone wicket mounting holes having a hole edge reinforcing bead of plastic selectively thinner in the desired tearing direction formed by a hot gas stream directed through shaped templates holding the bag. S P E C I F I C A T I O N

公开(公告)号：CA978157A

公开(公告)日：1975-11-18

申请号：CA169245

申请日：1973-04-11

Applicant: UNION CARBIDE CORP

Inventor： ERICSON ALVIN E ,  HAETTINGER GEORGE C ,  PEDERSEN ERNEST T

IPC: B65B43/36 ,  A47F13/08 ,  B65B67/12

公开(公告)号：CA677582A

公开(公告)日：1964-01-07

申请号：CA677582D

Applicant: UNION CARBIDE CORP

Inventor： PLACH ALVIN H ,  ERICSON ALVIN E

公开(公告)号：CA1082508A

公开(公告)日：1980-07-29

申请号：CA238087

申请日：1975-10-21

Applicant: UNION CARBIDE CORP

Inventor： WALITALO CHARLES R ,  ERICSON ALVIN E

IPC: B65D30/10 ,  B29C65/74 ,  B31B1/14 ,  B31B23/14 ,  B31B27/00 ,  B65D33/00

Abstract: Of THE DISCLOSURE Continuous strip closed-bottom open-mouthed packaging bags are produced by continually making, at spaced intervals in a continuous flattened tubular oriented plastic film supply, a transversely extending heat seal to define a bag bottom, and, adjacent each heat seal, perforating the two bottom plies of the film supply with a blade heated to effected annealing of the edges of the perforations and having a serrated cutting edge with spaced deep recesses to define connecting tabs between perforation.