公开(公告)号：US3916209A

公开(公告)日：1975-10-28

申请号：US45882974

申请日：1974-04-08

Applicant: ELECTRO SIGNAL LAB

Inventor： STEELE DONALD F ,  ENEMARK ROBERT B

IPC: G08B17/107 ,  G01N21/26

CPC classification number: G08B17/107 ,  G08B17/113

Abstract: An optical smoke detector comprises split optical block mounting an exciter lamp and a smoke sensing photocell in two passages directed toward an intersection zone in a dark chamber formed by one side of the block, a base with a bottom and side wall and a cover, all secured together by one screw. A light pipe from the lamp extends outside the cover to indicate lamp operation. A second photocell is in a third passage communicating with the lamp passage, the third passage mounting diffuser and pin hole apertured disks for spreading a controlled light intensity over the second photocell. The optical block assembly includes an alarm circuit board operationally connected to the photocells and physically positioning the block on the base. Smoke enters the dark chamber through passages formed by curved, light obstructing vanes converging toward an opening to the chamber between the opening and a baffle.

Abstract translation: 光学烟雾探测器包括分离光学块，其安装激励器灯和烟雾感测光电池，两个通道指向由块的一侧形成的暗室中的交叉区域，具有底部和侧壁以及盖子的基座，全部 用一个螺丝固定在一起。 来自灯的光管延伸到盖的外部，以指示灯的操作。 第二光电管在与灯通道连通的第三通道中，第三通道安装扩散器和针孔孔径盘，用于在第二光电池上扩展受控的光强度。 光学块组件包括可操作地连接到光电管并且将块物理地定位在基座上的报警电路板。 烟雾通过由弯曲的光阻挡叶片通过通道形成的通道进入暗室，该叶片在开口和挡板之间朝向腔室的开口会聚。

公开(公告)号：US3863076A

公开(公告)日：1975-01-28

申请号：US38205873

申请日：1973-07-24

Applicant: ELECTRO SIGNAL LAB

Inventor： STEELE DONALD F ,  ENEMARK ROBERT B

IPC: G01J1/02 ,  G01N21/53 ,  G08B17/10 ,  G08B17/107 ,  G01N21/26

CPC classification number: G08B17/107 ,  G08B17/113

Abstract: An optical smoke detector comprises split optical block mounting an exciter lamp and a smoke sensing photocell in two passages directed toward an intersection zone in a dark chamber formed by one side of the block, a base with a bottom and side wall and a cover, all secured together by one screw. A light pipe from the lamp extends outside the cover to indicate lamp operation. A second photocell is in a third passage communicating with the lamp passage, the third passage mounting diffuser and pin hole apertured disks for spreading a controlled light intensity over the second photocell. The optical block assembly includes an alarm circuit board operatively connected to the photocells and physically positioning the block on the base.

Abstract translation: 光学烟雾探测器包括分离光学块，其安装激励器灯和烟雾感测光电池，两个通道指向由块的一侧形成的暗室中的交叉区域，具有底部和侧壁以及盖子的基座，全部 用一个螺丝固定在一起。 来自灯的光管延伸到盖的外部，以指示灯的操作。 第二光电管在与灯通道连通的第三通道中，第三通道安装扩散器和针孔孔径盘，用于在第二光电池上扩展受控的光强度。 光学块组件包括可操作地连接到光电池并且将块物理地定位在基座上的报警电路板。

公开(公告)号：US3497303A

公开(公告)日：1970-02-24

申请号：US3497303D

申请日：1967-07-11

Applicant: ELECTRO SIGNAL LAB

Inventor： ENEMARK ROBERT B ,  STEELE DONALD F

IPC: G01N21/53 ,  G01N21/00

CPC classification number: G01N21/53 ,  G01N2201/0639