Abstract: In one embodiment a method to determine a center of gravity of a three dimensional object comprises positioning the object on a test platform in a first orientation, determining a position of the center of gravity along a first axis and a second axis when the object is in the first orientation, rotating the object with respect to a third axis which is orthogonal to the first axis and the second axis, determining a position of the center of gravity along at least one of the first axis or the second axis when the object is in the second orientation, and using a change in the position of the center of gravity along the at least one of the first axis or the second axis when the object is in the second orientation to determine a position of the center of gravity along the third axis. Other embodiments may be described.

Abstract: In one embodiment a method to determine a center of gravity of a three dimensional object comprises positioning the object on a test platform in a first orientation, determining a position of the center of gravity along a first axis and a second axis when the object is in the first orientation, rotating the object with respect to a third axis which is orthogonal to the first axis and the second axis, determining a position of the center of gravity along at least one of the first axis or the second axis when the object is in the second orientation, and using a change in the position of the center of gravity along the at least one of the first axis or the second axis when the object is in the second orientation to determine a position of the center of gravity along the third axis. Other embodiments may be described.

Abstract: A sensor, sensory array, and associated method for measuring a pressure are provided. The sensor includes a piezoelectric sensory device that is disposed on an electrically insulative substrate that can be adhered to a member for measuring the pressure on the member. The piezoelectric sensory device defines first and second contact surfaces and is adapted to provide an electric potential between the surfaces that corresponds to a pressure on the piezoelectric sensory device. Conductive terminals are in electrical communication with the piezoelectric sensory device and therefore also provide the electric potential indicative of the pressure on the surface of the test member. An electrically insulative sheet is disposed opposite the piezoelectric sensory device from the substrate. An electronic monitoring device can be electrically connected to the piezoelectric sensory device via the terminals and configured to monitor the electric potential provided by the piezoelectric sensory device.

Abstract: A hole opener for use in the Horizontal Directional Drilling (HDD) Industry is provided having an interchangeable sleeve reamer. The hole opener is in the form of a three-piece tool comprising a top shaft member, an interchangeable sleeve member and a bottom sub member, the interchangeable sleeve member being configured to be securely and removably mounted onto the top shaft member such that is does not rotate freely about the axis of the shaft member. In one embodiment, the bottom sub member also is interchangeable with other bottom sub members.

Abstract: A disposable receptacle for animal and other waste having a rigid container for receiving an absorbent material and the deposited waste. A flange extends around the container and at least partially defines a channel which receives a flexible sleeve-like closure in a stored out-of-the-way position which has one end secured to the container. When the closure is unfolded, it extends over the container to close it and the free end of the closure may be gathered and secured by a twist tie.

Abstract: A device for determining the operational costs of electrical devices. A case encloses a measuring instrument including a circuit which is connectable to a power source and to the device being checked. The instrument has a dial calibrated to give readings directly related to current consumption. The user applies the applicable energy rate at computation means on the case to determine the operational cost in a period of time.