公开(公告)号：US3399984A

公开(公告)日：1968-09-03

申请号：US39996764

申请日：1964-09-29

Applicant: DURO TEST CORP

Inventor： TRUTNER DONALD G ,  OLSEN ANDREW H

IPC: C03B23/051

CPC classification number: C03B23/051

公开(公告)号：US3186819A

公开(公告)日：1965-06-01

申请号：US13398961

申请日：1961-08-25

Applicant: DURO TEST CORP

Inventor： LUKE THORINGTON ,  OLSEN ANDREW H ,  TRUTNER DONALD G

IPC: C03B23/051

CPC classification number: C03B23/051

公开(公告)号：US2411679A

公开(公告)日：1946-11-26

申请号：US58591845

申请日：1945-03-31

Applicant: DURO TEST CORP

Inventor： COX JAMES L ,  TRUTNER DONALD G

IPC: H01J61/067

CPC classification number: H01J61/067 ,  Y10S315/02

公开(公告)号：US3628939A

公开(公告)日：1971-12-21

申请号：US3628939D

申请日：1969-09-04

Applicant: DURO TEST CORP

Inventor： TRUTNER DONALD G

IPC: C03B23/051 ,  C03B35/26 ,  C03B35/00

CPC classification number: C03B23/051 ,  C03B35/26 ,  Y02P40/57

Abstract: An improved machine for forming one or more helical grooves in the walls of glass tubes in which the glass tubes are automatically transferred from one processing area of the machine to the adjacent processing area. Lifters for engaging the open ends of the glass tubes are attached to a movable carriage assembly which provides for the transfer of the tubes from one area of the machine to an adjacent area during its forward travel and provides for the grooving of the tubes during its reverse travel. A positioning mechanism insures that the lifters are properly aligned over the open ends of the tubes prior to engagement. An arrangement is also disclosed for transferring two tubes in tandem to increase the machine''s processing speed.

公开(公告)号：US3356984A

公开(公告)日：1967-12-05

申请号：US42490865

申请日：1965-01-12

Applicant: DURO TEST CORP

Inventor： LUKE THORINGTON ,  TRUTNER DONALD G

IPC: H01K1/46

CPC classification number: H01K1/46

公开(公告)号：US3243278A

公开(公告)日：1966-03-29

申请号：US45689065

申请日：1965-05-05

Applicant: DURO TEST CORP

Inventor： OLSEN ANDREW H ,  TRUTNER DONALD G

IPC: C03B23/051 ,  H01J9/24

CPC classification number: H01J9/247 ,  C03B23/051

公开(公告)号：US3129085A

公开(公告)日：1964-04-14

申请号：US8579061

申请日：1961-01-30

Applicant: DURO TEST CORP

Inventor： OLSEN ANDREW H ,  TRUTNER DONALD G

IPC: C03B23/051 ,  H01J9/24

CPC classification number: C03B23/051 ,  H01J9/247