公开(公告)号：US3583466A

公开(公告)日：1971-06-08

申请号：US3583466D

申请日：1969-12-17

Applicant: POLACOAT INC

Inventor： DREYER JOHN F

IPC: G03B21/58 ,  A47G5/00

CPC classification number: G03B21/58

Abstract: An adjustable screen frame assembly composed essentially of tubular members which are rectangular in cross section, the tubular members defining the corners legs, and side parts of the screen frame, the frame assembly including T-shaped sections which are telescopically received in the tubular parts and wedged into multiple point clamping engagement therewith by means of adjustment bolts, the frame forming parts being provided with means for readily attaching a screen or the like thereto.

公开(公告)号：US3436353A

公开(公告)日：1969-04-01

申请号：US3436353D

申请日：1959-10-22

Applicant: POLACOAT INC

Inventor： DREYER JOHN F ,  BALTZER DONALD H

IPC: B44F1/12 ,  G02B5/23 ,  G03C1/73 ,  C09K1/02 ,  G02B1/04 ,  G03C1/00

CPC classification number: G03C1/73 ,  G02B5/23 ,  Y10S430/163

公开(公告)号：US3253497A

公开(公告)日：1966-05-31

申请号：US14838961

申请日：1961-10-30

Applicant: POLACOAT INC

Inventor： DREYER JOHN F

IPC: G11C13/04 ,  H04N5/74

CPC classification number: H04N5/7425 ,  G11C13/048

公开(公告)号：US3196743A

公开(公告)日：1965-07-27

申请号：US14190061

申请日：1961-09-29

Applicant: POLACOAT INC

Inventor： DREYER JOHN F

IPC: G02F1/15

CPC classification number: G02F1/1523

公开(公告)号：US3658616A

公开(公告)日：1972-04-25

申请号：US3658616D

申请日：1969-09-17

Applicant: POLACOAT INC

Inventor： DREYER JOHN F

IPC: B42D15/00 ,  B44C1/17 ,  B44C1/16

CPC classification number: B44C1/1733 ,  B42D25/29 ,  Y10T428/24802

Abstract: Methods for making patterns comprising areas different with respect to their light polarizing properties by selective removal of portions of a continuous polarizing film, such as of a dichroic dye, from a carrier therefor to define all or a portion of said areas. Selective removal may be by destructive removal of the dye film from the carrier, or by transfer of portions thereof to a receptor surface.

Abstract translation: 通过从其载体上选择性除去连续的偏振膜的一部分，例如二色性染料的部分，制造包括相对于其光偏振性不同的区域的图案的方法，以限定所述或所述区域的全部或一部分。 选择性去除可以通过从载体上破坏性去除染料膜，或者通过将其部分转移到受体表面。

公开(公告)号：US3597043A

公开(公告)日：1971-08-03

申请号：US3597043D

申请日：1969-05-02

Applicant: POLACOAT INC

Inventor： DREYER JOHN F

IPC: G01H9/00 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/24

CPC classification number: G01H9/002 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/133711 ,  Y10S359/90

Abstract: The production of visible motion patterns in a thin film of a nematic liquid crystal compound by inducing physical movement of the film, the film being formed between support plates at least one of which is transparent or translucent, means being provided to effect movement within the liquid crystal film.

公开(公告)号：US3386788A

公开(公告)日：1968-06-04

申请号：US31419763

申请日：1963-10-07

Applicant: POLACOAT INC

Inventor： DREYER JOHN F

IPC: G01J1/48

CPC classification number: G01J1/48