Abstract: A fire resistant cable, the cable includes an electrical conductor surrounded by an insulation layer. The insulation layer is a composite material including ceramic particles embedded in a polymer matrix. The ceramic particles and polymers are chosen such that the ceramic particles start to sinter together at a temperature lower than the complete decomposition of the polymer chains. When the cable is exposed to heat and flame the polymer degrades, the ceramic particles sinter together and the insulation layer becomes a continuous sintered ceramic layer that both insulates and supports the conductor for improved circuit integrity.

Abstract: An alumina body having nano-sized open-cell pores, the alumina body is formed from ?-Al2O3 and Al(OH)3. The alumina body has porosity of greater than 36-percent by volume and a mean pore flow diameter less than 25-nm. The alumina body retains porosity of over 20-volume percent for temperatures up to 1510° C. for 1-hour. The nano-sized open-cell porous body can be scaled to any 3-dimensional structure.

Abstract: A method for fabricating an alumina body having nano-sized open-cell pores, the alumina body is formed from ?-Al2O3 and Al(OH)3. The alumina body has porosity of greater than 36 percent by volume and a mean pore flow diameter less than 25 nm. The alumina body retains porosity of over 20 volume percent for temperatures up to 1510° C. for 1 hour. The nano-sized open-cell porous body can be scaled to any 3-dimensional structure.

Abstract: A high-temperature open-cell porous body, the body comprises crystalline inorganic particles and 0.5 to 3-weight percent glass. The crystalline inorganic particles are bonded together by the glass to form a matrix with interconnected pores having a porosity of greater than 20-percent. The crystalline inorganic particles may further include interconnected micro pores, the latter combination providing a matrix with both macro porosity and micro porosity.

Abstract: The present application is directed to a zirconia toughened alumina body and process for making the body. The process involves combining tetragonally stabilized ZrO2 nanoparticles, Mg(OH)2 particles and alumina powder into a mixture. All particles of the mixture are milled, formed into a green compact and then sintered. The final composition of the body includes ?-Al2O3 toughened with 0.5 to 2.5 weight percent ZrO2 in a stabilized tetragonal form and 0.03 to 0.10 weight percent MgO. The composition results in an Al2O3 body with a density less than 4.0 g/cc and strength greater than 50 kpsi.

Abstract: The present application is directed to a zirconia toughened alumina body and process for making the body. The process involves combining tetragonally stabilized ZrO2 nanoparticles, Mg(OH)2 particles and alumina powder into a mixture. All particles of the mixture are milled, formed into a green compact and then sintered. The final composition of the body includes ?-Al2O3 toughened with 0.5 to 2.5 weight percent ZrO2 in a stabilized tetragonal form and 0.03 to 0.1.0 weight percent MgO. The composition results in an Al2O3 body with a density less than 4.0 g/cc and strength greater than 50 kpsi.

Abstract: The present application is directed to a zirconia toughened alumina body and process for making the body. The process involves combining tetragonally stabilized ZrO2 nanoparticles, Mg(OH)2 particles and alumina powder into a mixture. All particles of the mixture are milled, formed into a green compact and then sintered. The final composition of the body includes ?-Al2O3 toughened with 0.5 to 2.5 weight percent ZrO2 in a stabilized tetragonal form and 0.03 to 0.10 weight percent MgO. The composition results in an Al2O3 body with a density less than 4.0 g/cc and strength greater than 50 kpsi.

Abstract: A porous refractory product includes a matrix of sintered silicon carbide having a porosity of about 45% to about 65%. The matrix is formed by heating in a noble gas atmosphere a cast preform including a mixture of alpha-silicon carbide and boron carbide each having a particle size of less than about 1 micron. The heating causes the formation of gaseous SiO within the silicon carbide matrix, which, in turn, forms pores having an average size of less than about 1 micron. The porous refractory products herein are suitable for use in a variety of applications including for use in high temperature particulate filtering applications.

Abstract: A porous refractory product includes a matrix of sintered silicon carbide having a porosity of about 45% to about 65%. The matrix is formed by heating in a noble gas atmosphere a cast preform including a mixture of alpha-silicon carbide and boron carbide each having a particle size of less than about 1 micron. The heating causes the formation of gaseous SiO within the silicon carbide matrix, which, in turn, forms pores having an average size of less than about 1 micron. The porous refractory products herein are suitable for use in a variety of applications including for use in high temperature particulate filtering applications.

Abstract: An improved lower cost sight glass and a method for producing the same is disclosed, whereby the sight glass is made by placing a transparent component in secure contact with a metallic ring. The contact may optionally be effectuated by temporarily altering the relative dimensions of the metallic ring and the transparent component, placing the transparent component into the inner space of the metallic ring, and then reversing the altered relative dimensions of the metallic ring and the transparent component. A hermetic seal is formed between the transparent component and the metallic ring is by the application of an inorganic sealing compound.

Abstract: Several embodiments of a hermetic terminal assembly are disclosed and an associated method. The terminal assembly includes a metallic body that has body a bottom portion. The bottom portion includes an interior surface, an exterior surface and at least one opening. The terminal assembly also includes a current-conducting pin extending longitudinally through the opening, and a prefabricated dielectric retainer receiving the pin and covering at least a portion of the interior surface and surrounding at least a portion of the opening. The terminal assembly includes a dielectric epoxy bonding to the body, the retainer and the pin, and providing a seal between the pin and the opening in the bottom portion through which the pin is extending. In another embodiment, the prefabricated retainer may be omitted entirely.

Abstract: A hermetically sealed current conducting terminal assembly for installation in an opening in the wall of a housing. The terminal assembly includes a current conducting pin assembly comprising a first pin member electrically connected to a second pin member at a conductive core and a first and second seal that electrically isolate the pin assembly from the housing.

Abstract: A hermetically sealed current conducting terminal assembly for installation in an opening in the wall of a housing. The terminal assembly includes a current conducting pin assembly comprising a first pin member electrically connected to a second pin member at a conductive core and a first and second seal that electrically isolate the pin assembly from the housing.

Abstract: A connector block adaptable to engage with a terminal assembly of a hermetically sealed compressor, including a circular substantially flat surface that has a plurality of holes adaptable to receive the electrical conductor pins mounted inside the terminal assembly when the connector block is engaged with the terminal assembly. At least partially surrounding the circumference of at least one of the holes is a protrusion located on the substantially flat surface. The circular substantially flat surface defines a connector lip erected around its perimeter. This connector lip is designed to cover the open end of the cap of the terminal assembly and to surround the electrical conductor pins so as to minimize possible electrical arcing. The connector lip is fisher designed to seal the open end of the cap of the terminal assembly such that no particles from the hermetically sealed compressor could enter into the cap of the terminal assembly.

Abstract: Several embodiments of a hermetic terminal assembly are disclosed and an associated method. The terminal assembly includes a metallic body that has body a bottom portion. The bottom portion includes an interior surface, an exterior surface and at least one opening. The terminal assembly also includes a current-conducting pin extending longitudinally through the opening, and a prefabricated dielectric retainer receiving the pin and covering at least a portion of the interior surface and surrounding at least a portion of the opening. The terminal assembly includes a dielectric epoxy bonding to the body, the retainer and the pin, and providing a seal between the pin and the opening in the bottom portion through which the pin is extending. In another embodiment, the prefabricated retainer may be omitted entirely.

Abstract: A hermetically sealed current conducting terminal assembly for installation in an opening in the wall of a housing. The terminal assembly includes a current conducting pin assembly comprising a first pin member electrically connected to a second pin member at a conductive core and a first and second seal that electrically isolate the pin assembly from the housing.

Abstract: An improved lower cost sight glass and a method for producing the same is disclosed, whereby the sight glass is made by placing a transparent component in secure s contact with a metallic ring. The contact may optionally be effectuated by temporarily altering the relative dimensions of the metallic ring and the transparent component, placing the transparent component into the inner space of the metallic ring, and then reversing the altered relative dimensions of the metallic ring and the transparent component. A hermetic seal is formed between the transparent component and the metallic ring is by the application of an inorganic sealing compound.

Abstract: A hermetic or semi-hermetic terminal assembly having a cup-shaped body portion with a generally flat bottom wall and at least one opening in the bottom wall defined by an annular lip extending into the cup. One current conducting pin extends through each opening and beyond the lip on both ends of the body portion, the inner end of the pin being on the dish side of the cup-shaped body portion, and the outer end on the outer side of the body. A resilient plastic material is molded into place within the body portion to bond the pin to an inside surface of the lip with a hermetic seal. The plastic extends beyond the face of the body portion and bonds to the pin to provide the desired air path between the respective pins and each other and/or the face of the body portion.

Abstract: A hermetic or semi-hermetic terminal assembly having a cup-shaped body portion with a generally flat bottom wall and at least one opening in the bottom wall defined by an annular lip extending into the cup. One current conducting pin extends through each opening and beyond the lip on both ends of the body portion, the inner end of the pin being on the dish side of the cup-shaped body portion, and the outer end on the outer side of the body. A resilient plastic material is molded into place within the body portion to bond the pin to an inside surface of the lip with a hermetic seal. The plastic extends beyond the face of the body portion and bonds to the pin to provide the desired air path between the respective pins and each other and/or the face of the body portion.

Abstract: A connector block adaptable to engage with a terminal assembly of a hermetically sealed compressor, including a circular substantially flat surface that has a plurality of holes adaptable to receive the electrical conductor pins mounted inside the terminal assembly when the connector block is engaged with the terminal assembly. At least partially surrounding the circumference of at least one of the holes is a protrusion located on the substantially flat surface. The circular substantially flat surface defines a connector lip erected around its perimeter. This connector lip is designed to cover the open end of the cap of the terminal assembly and to surround the electrical conductor pins so as to minimize possible electrical arcing. The connector lip is fisher designed to seal the open end of the cap of the terminal assembly such that no particles from the hermetically sealed compressor could enter into the cap of the terminal assembly.