Honeywell International Inc.

Eagle Electric Manufacturing Co., Inc.

Wen-Hua Hsu

Fred Katz

John M Eder

Faycal Benjelloun

A battery housing unit with a releasable cover for minimizing mis-alignment of a battery housed therein during high impact loads. The battery unit includes a battery holder having retention members biased towards one another that receive a battery. The retention members engage stop ribs projecting from the cover. The cover fits over the retention members of the battery holder and to a base of the housing unit. The retention members and stop ribs are engaged when high impact loads are delivered to the housing unit and the battery is urged against the biasing nature of the retention members. Movement and mis-alignment of the battery is thus minimized and high impact loads are re-distributed throughout the cover. Detents may be provided on each retention member for engaging a corresponding cavity provided on each stop rib. The detents and cavities interlock the retention members and stop ribs together upon high impact. In this manner, movement and mis-alignment of the battery is also minimized.

Impact resistant battery housing with cover

A tamper detection mechanism in a sensor device comprising a body and a mounting base. The sensor device includes a substantially central resilient element/plunger attached to the mounting base. The body houses a printed circuit board includes a surface for mating to the resilient element to create a circuit. The mounting base may be removably affixed to a structure such as a wall or ceiling. When the mounting base is screwed into the structure and the body is coupled to the mounting base, the plunger is compressed and exerts a continuous pressure on the printed circuit board surface to complete the tamper circuit. If the sensor device is uncoupled and/or removed from the structure, the circuit is opened and a tamper indication signal is produced.

Tamper detection mechanism for blind installation of circular sensors

A tamper switch mechanism utilized in security interface devices such as keypad installations to render them tamper-resistant, wherein the devices are generally connected to burglar alarm and fire alarm systems. More particularly, provided is a conductive tamper switch which is installed in a security interface device, such as a keypad, which upon an unauthorized attempt to dislodge the device or keypad from a wall or surface on which it is mounted, will trigger an alarm or generate a warning signal at a monitoring site indicative that an effort at tampering with the device has been effected. Also disclosed is a method of providing the tamper switch mechanism in a security interface device, such as a keypad installation.

Conductive tamper switch for security devices

An apparatus and method providing for ease of installation of a component on a substantially vertical surface. The apparatus, has a back case to be secured to the substantially vertical surface, and a front case securable to the back case, the front case having a raised lip along at least one edge. The back case has a plurality of installation brackets to support the front case by the raised lip. A method of installing a security system component on a substantially vertical surface includes securing a back case to the substantially vertical surface, the back case having a plurality of installation brackets, and supporting a front case in an installation position by the installation brackets. Leads connecting the security system to a component thereof mounted to the front case are secured to the front case, and the front case is secured to the back case in a use position.

Installation aid for vertically mounted components

An electrical device to be mounted on a support includes a housing having an inner part and an outer part secured to one another. The housing is mounted on the support in a position in which the outer part of the housing is accessible. A cover plate is provided for obscuring the view of at least a portion of the housing and surrounding areas of the support. The cover plate has at least one through opening in it. The cover plate is secured to the housing by a screw passing through the opening and an aperture. The screw engages the thread of a threaded bore when the device is fully assembled. The outer housing part includes webs at or within the opening for engaging the shank of the screw and temporarily holding it, and with it the cover plate, in their proper positions prior to engagement of the shank thread with the bore thread.

Growing community of inventors

Forest Hills, NY, United States of America

Wen-Hua Hsu