Abstract: A seismic data acquisition module includes a motherboard that is environmentally protected as a independent unit by an integral sheath, envelope or encapsulating cover. The motherboard unit is suitably configured for rapid and frequent manual removal from the interior cavity of a protective outer housing for compact and more secure packaging as well as more convenient transport over great distances, if necessary, to successively different survey sites. At a new survey site, the motherboard units may be inserted into more bulky but also more rugged or waterproof outer housings that are provided with environmentally tight cable connectors. The outer housings, having a capital value of only a fraction of the electronic motherboard units, may have arrived at the new site at a different time and may even be distributed in the new survey field at the time the motherboard units arrive.

Abstract: A seismic data acquisition module includes a motherboard that is environmentally protected as a independent unit by an integral sheath, envelope or encapsulating cover. The motherboard unit is suitably configured for rapid and frequent manual removal from the interior cavity of a protective outer housing for compact and more secure packaging as well as more convenient transport over great distances, if necessary, to successively different survey sites. At a new survey site, the motherboard units may be inserted into more bulky but also more rugged or waterproof outer housings that are provided with environmentally tight cable connectors. The outer housings, having a capital value of only a fraction of the electronic motherboard units, may have arrived at the new site at a different time and may even be distributed in the new survey field at the time the motherboard units arrive.

Abstract: A seismic data acquisition module includes a motherboard that is environmentally protected as a independent unit by an integral sheath, envelope or encapsulating cover. The motherboard unit is suitably configured for rapid and frequent manual removal from the interior cavity of a protective outer housing for compact and more secure packaging as well as more convenient transport over great distances, if necessary, to successively different survey sites. At a new survey site, the motherboard units may be inserted into more bulky but also more rugged or waterproof outer housings that are provided with environmentally tight cable connectors. The outer housings, having a capital value of only a fraction of the electronic motherboard units, may have arrived at the new site at a different time and may even be distributed in the new survey field at the time the motherboard units arrive.

Abstract: Sizing dispersions of liquid reactive size are made by dispersing the reactive size as a neat liquid into a dispersion of bentonite or other anionic microparticulate material in water. These dispersions can be used for internal sizing, for instance wherein the dispersion is used as the anionic microparticulate stage in a microparticulate retention paper-making process, or they can be used for external sizing.

Abstract: An electronic package (10) designed to be mounted in a space vehicle includes active electronic components that produce heat energy during operation and has a shear plate (12) attached to a heat sink (13). A heat spreader (11) includes an L-shaped plate of thermal pyrolitic graphite encapsulated in aluminum, which has a long arm (20) attached to the shear plate (12) by a heat conductive adhesive and a short arm (21) attached to the heat sink (13) for transferring heat energy from the package (10) to the heat sink (13). Whereby the heat sink (13) and the package (10) produce a dynamic load and the heat sink (13) and the package (10) are designed to carry the dynamic load with the heat spreader (11) providing only thermal enhancement.

Abstract: Protective shield tent (100, 300, 400) provides a portable and repeatable method for protecting assemblies during various stages of a manufacturing process. Protective shield tent (100, 300, 400) is light weight and can be deployed manually. Protective shield tent (100, 300, 400) is simple to use and shortens the time required for a manufacturing process. The invention provides a simple, accurate, low-cost, and repeatable method for using a portable EMI shielding apparatus for protecting a component or large subassembly during various stages of a manufacturing process. A portable collapsible frame is provided along with a removable protective covering which is mounted over the collapsible frame to create an EMI shield around the component or subassembly. Protective shield tent (100, 300, 400) can easily be moved from one location to another facilitating re-use.