Abstract: A valve includes a housing with a flow passage and a hole extending into the housing; a post with a base and a hole extending into the base, the post connected to the housing; and a dowel pin which sits in the hole of the housing and extends into the hole in the post.

Abstract: A check valve includes a base, two sidewalls extending from the base and a pin coupled between the two sidewalls. The valve also includes a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a plate and a backbone that is thicker than the base and the extends along an entire length of the plate.

Abstract: A check valve with a housing and a first flapper rotatable about an axis between open and closed positions includes a first spring mechanism operatively positioned between a static component and the first flapper. When the first flapper is in the closed position there is a distance between the first spring mechanism and either the static component or the first flapper.

Abstract: A valve includes a housing with a flow passage and a hole extending into the housing; a post with a base and a hole extending into the base, the post connected to the housing; and a dowel pin which sits in the hole of the housing and extends into the hole in the post.

Abstract: An evaporator heat exchanger is disclosed. The evaporator heat exchanger includes a bottom plate, a top plate, and at least one main plate between the bottom plate and the top plate. The at least one main plate includes a first face having one or more channels for flow of a first fluid along the first face and a second face opposite the first face having one or more channels for flow of a second fluid along the second face, wherein heat is exchanged between the first fluid and the second fluid through the main plate. Main plates adjacent to each other define an enclosed channel for fluid flow.

Abstract: A plate heat exchanger includes a plurality of main plates having ridges and troughs to direct first and second flows of fluids across the main plates to exchange heat between the fluids while maintaining the first and second flows of fluids separate from each other. The heat exchanger also includes a first end plate including first and second inlets and first and second outlets. The first end plate includes a substantially flat inside surface configured to contact the ridges of a first main plate among the plurality of main plates and at least one slot formed in the substantially flat surface to provide a fluid communication of the first fluid flow between the inlet and a cavity formed by the first end plate and the first main plate.

Abstract: An article of apparel is disclosed that includes zones with a textile having a structure that changes or is otherwise modified by a physical stimulus, such as the presence of water or a temperature change, to modify a property of the textile. The zones may be along a center back area and side areas of the apparel, and the textile may increase in air permeability when exposed to water. The zones may also be in an upper area of the torso and in a lower back area, and the textile may increase in texture when exposed to water. In some embodiments, slits are formed in the textile.

Abstract: A plate heat exchanger includes a plurality of main plates having ridges and troughs to direct first and second flows of fluids across the main plates to exchange heat between the fluids while maintaining the first and second flows of fluids separate from each other. The heat exchanger also includes a first end plate including first and second inlets and first and second outlets. The first end plate includes a substantially flat inside surface configured to contact the ridges of a first main plate among the plurality of main plates and at least one slot formed in the substantially flat surface to provide a fluid communication of the first fluid flow between the inlet and a cavity formed by the first end plate and the first main plate.

Abstract: A plate heat exchanger includes a stack of main plates having ridges and troughs to direct first and second flows of fluids through cavities between the main plates to exchange heat between the fluids while maintaining the first and second flows of fluids separate from each other. The plate heat exchanger includes a first end plate stacked at one end of the stack of main plates and a second end plate stacked at an opposite end of the main plates. Tension ties mechanically connect to each of the first and second end plates through the stack of main plates.

Abstract: Garments may include: (a) one garment portion having an air permeability of less than 550 ft3/min per ft2; and (b) another garment portion including one or more vented zones, wherein a material forming the vented zones has an air permeability of at least 550 ft3/min per ft2. The vented zones may extend along a center back portion and/or along at least one side portion of the garment. Methods for forming such garments may include: (a) providing one garment portion having an air permeability of less than 550 ft3/min per ft2; (b) providing another garment portion including at least one vented zone, wherein a material forming the vented zone has an air permeability of at least 550 ft3/min per ft2; and (c) forming a garment structure including these garment portions. The vented zones may extend along a center back portion and/or along at least one side portion of the garment structure.

Abstract: An article of apparel may include a torso region with a front area, a back area, and a pair of side areas. At least a portion of each of the side areas are formed from a material with (a) a first air permeability when unexposed to water and (b) a second air permeability when exposed to water. The first air permeability may be less than 279 cm3/second per cm2 measured in accordance with ASTM D 737, and the second air permeability may be greater than 279 cm3/second per cm2 measured in accordance with ASTM D 737. In some configurations, at least a portion of the back area may be formed from the material. The article of apparel may be a shirt, and the article of apparel may include arm regions that extend outward from the torso region.

Abstract: In a disclosed embodiment, a chemical process has a pair of beds, with each of said beds having at least one connection to receive a source of gas, and for delivering gas downstream. Each of the beds includes chemical treatment elements. The system includes a connection to a source of a gas to be treated, and a connection for receiving treated gas to be delivered to a downstream use, a connection to a source of a cleaning gas, and a connection to deliver the cleaning gas downstream. A rotary valve includes a rotary actuator for rotating a valve to selectively switch each of the beds between the several connections.

Abstract: A rotary cylinder valve comprises a valve body, a valve cylinder rotationally mounted within the valve body, and first, second, third and fourth valve seats coupled to the valve body. The valve cylinder has a first position in which dual independent flow paths connect the first valve seat with the second valve seat, and connect the third valve seat with the fourth valve seat. The valve cylinder is rotatable to a second position in which the dual independent flow paths connect the first valve seat with the fourth valve seat, and connect the third valve seat with the second valve seat. The valve seats form seals against the valve cylinder, such that no flow path connects the first valve seat with the third valve seat.

Abstract: In a disclosed embodiment, a chemical process has a pair of beds, with each of said beds having at least one connection to receive a source of gas, and for delivering gas downstream. Each of the beds includes chemical treatment elements. The system includes a connection to a source of a gas to be treated, and a connection for receiving treated gas to be delivered to a downstream use, a connection to a source of a cleaning gas, and a connection to deliver the cleaning gas downstream. A rotary valve includes a rotary actuator for rotating a valve to selectively switch each of the beds between the several connections.

Abstract: A rotary phase separator system generally includes a step-shaped rotary drum separator (RDS) and a motor assembly. The aspect ratio of the stepped drum minimizes power for both the accumulating and pumping functions. The accumulator section of the RDS has a relatively small diameter to minimize power losses within an axial length to define significant volume for accumulation. The pumping section of the RDS has a larger diameter to increase pumping head but has a shorter axial length to minimize power losses. The motor assembly drives the RDS at a low speed for separating and accumulating and a higher speed for pumping.

Abstract: A rotary cylinder valve comprises a valve body, a valve cylinder rotationally mounted within the valve body, and first, second, third and fourth valve seats coupled to the valve body. The valve cylinder has a first position in which dual independent flow paths connect the first valve seat with the second valve seat, and connect the third valve seat with the fourth valve seat. The valve cylinder is rotatable to a second position in which the dual independent flow paths connect the first valve seat with the fourth valve seat, and connect the third valve seat with the second valve seat. The valve seats form seals against the valve cylinder, such that no flow path connects the first valve seat with the third valve seat.

Abstract: A method for selectively operating an electric motor in one of a first pole configuration and a second pole configuration is provided. The first pole configuration has a first phase winding structure, a second phase winding structure and a third phase winding structure. The method includes energizing each of the first phase winding structure, the second phase winding structure and the third phase winding structure to operate the electric motor in the first pole configuration. The first phase winding structure is reconfigured to form a first phase, a second phase and a third phase of the second pole configuration. The first phase winding structure is energized and each of the second phase winding structure and the third phase winding structure is de-energized to operate the electric motor in the second pole configuration.

Abstract: The present invention relates to a comfortable, cut resistant and abrasion resistant, composition composed of cotton, nylon, and p-aramid fibers and used primarily in the sheath for sheath/core yarns in protective apparel.

Abstract: A method of making a leakage flux conducting device and securing it to a non-ferrous end plate of a prime mover. In this method, the device is formed with a mass great enough so that it remains unsaturated with respect to the leakage flux carried thereby, and the device is provided with a plurality of means arranged for deformation into engagement with associated parts of the end plate. The device is moved into an assembly position on the end plate, and the deformation means are deformed into engagement with the associated parts of the end plate thereby to prevent displacement of the device from its assembly position on the end plate.

Abstract: A prime mover has a non-ferrous end plate with a leakage flux conducting device disposed in a preselected assembly position thereon. The device conducts across the end plate leakage flux emanating from a magnetic field established between a pair of opposite pole winding means of the prime mover upon the energization thereof. Fingers integral with the device are provided for securing it in the preselected assembly position thereof on the end plate.