公开(公告)号：US3868726A

公开(公告)日：1975-03-04

申请号：US12105471

申请日：1971-03-04

Applicant: AMERICAN OPTICAL CORP

Inventor： LA MARRE DAVID A ,  SMITH DONALD A ,  STICKNEY HERBERT F

IPC: A61F9/06 ,  F16P1/06

CPC classification number: A61F9/06 ,  F16P1/06

Abstract: A welding helmet having a detachable and readily replaceable facepiece covering of radiant energy reflective material, the major portion of which is normally spaced away from the facepiece for ventilation of the helmet during its use. A thermally insulating material may be placed between the facepiece and helmet and/or the helmet may be formed of thermally insulating material.

Abstract translation: 一种焊接头盔，具有可拆卸且易于更换的面罩，其覆盖辐射能量反射材料，其主要部分通常与面罩间隔开，以在头盔使用期间通风。 绝热材料可以放置在面罩和头盔之间，和/或头盔可以由绝热材料形成。

公开(公告)号：US3395366A

公开(公告)日：1968-07-30

申请号：US30995763

申请日：1963-09-19

Applicant: AMERICAN OPTICAL CORP

Inventor： ELIAS SNITZER ,  LA MARRE DAVID A

IPC: H01S3/06 ,  H01S3/067 ,  H01S3/092 ,  H01S3/098

CPC classification number: H01S3/0805 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/092