Abstract: For collecting data from a water well, down-hole sensors are housed in modules. The modules are arranged to be screwed together in-line to form a vertical string. Mechanically, the modules are secured to each other only by the screw connection. Data is transmitted to the surface on a 2-wire cable, there being no other electrical connection between the modules and the surface. The modules are connected in multi-drop configuration to the 2-wire cable. Data is transmitted using time-division multiplexing.
Type:
Grant
Filed:
December 30, 2002
Date of Patent:
January 18, 2005
Assignee:
Solinst Canada Limited
Inventors:
Ronald Ernest Russell Patey, Douglas James Belshaw
Abstract: For holding brick cladding to a stud frame structure, the brick-tie is a one-piece moulding in plastic. The moulding has a vertical arm, which is secured to the stud by a nail, and a horizontal arm, which is mortar'd between courses of bricks. The nail is located near the junction between the arms, and the junction is chunky enough to be inflexible. The bridge, which spans the space between the bricks and the stud, is also thick enough to be inflexible.