Abstract: Embodiments of the invention are directed to a trench former assembly and a method of constructing a trench using the trench former assembly. Typically, the trench former assembly comprises a forming member and a corresponding retention and removal system. The forming member is structured to facilitate forming the trench, while the retention and removal system is structured to suspend the forming member and support the forming member against displacement and rotation during forming of the trench. Embodiments of the invention are also directed to a dual-pour type trench former assembly for forming a multi-layer trench.

Abstract: The present invention is manufactured to prevent the difficulties that may arise when installing a drainage system into a trench that has been cut into a sidewall of a building containing a network of structural members. The present invention is developed to produce a secure and effective connection between the structural member(s) of a drainage system and the structural members in the sidewall of a building in order to increase the stability of the drainage system within the sidewall.

Abstract: A set of parts for assembly into a reconfigurable communications device has at least an earpiece (16) a microphone (20) and a press-to-talk switch (24). These parts can be assembled together by respective connectors (19,22,26,29) and the device can be reconfigured by disconnecting and reconnecting with other parts of the set (for example different forms of switch and microphone) to meet other operational requirement.

Abstract: A set of parts for assembly into a reconfigurable communications device has at least an earpiece (16) a microphone (20) and a press-to-talk switch (24). These parts can be assembled together by respective connectors (19,22,26,29) and the device can be reconfigured by disconnecting and reconnecting with other parts of the set (for example different forms of switch and microphone) to meet other operational requirement.