Abstract: According to the invention, a heat exchanger is disclosed. The heat exchanger may include a first tube sheet, a second tube sheet, a heat exchange tube, a header, and a coupling. The heat exchange tube may be disposed at least partially between the first tube sheet and the second tube sheet, and may also be made of a first material. The header may be made of a second material. The coupling may include a first end and a second end. The first end may be made of the first material, and the second end may be made of the second material. The first end may be operably coupled with the heat exchange tube, and the second end may be operably coupled with the header.

Abstract: According to the invention, a heat exchanger is disclosed. The heat exchanger may include a first tube sheet, a second tube sheet, a heat exchange tube, a header, and a coupling. The heat exchange tube may be disposed at least partially between the first tube sheet and the second tube sheet, and may also be made of a first material. The header may be made of a second material. The coupling may include a first end and a second end. The first end may be made of the first material, and the second end may be made of the second material. The first end may be operably coupled with the heat exchange tube, and the second end may be operably coupled with the header.

Abstract: A conveyor belt for use in the food processing industry includes a stainless steel substrate and nickel-boron coating material. The nickel-boron coating is applied on at least a portion of the stainless steel substrate to increase wear resistance.

Abstract: A conveyor belt for use in the food processing industry includes a stainless steel substrate and nickel-boron coating material. The nickel-boron coating is applied on at least a portion of the stainless steel substrate to increase wear resistance.

Abstract: An environmentally-controlled food container, such as a refrigerator, freezer or oven, includes a plurality of walls joined at their edges and joints between adjacent walls. The joints are covered by a seaming tape which includes a plastic film layer and a mesh layer. The mesh layer is formed from a material having a coefficient of thermal expansion within ±10% of a coefficient of thermal expansion of adjacent wall material. The seaming prevents moisture and bacteria from entering the joints, and does not fracture due to thermal expansion and contraction of the walls.

Abstract: An environmentally-controlled food container, such as a refrigerator, freezer or oven, includes a plurality of walls joined at their edges and joints between adjacent walls. The joints are covered by a seaming tape which includes a plastic film layer and a mesh layer. The mesh layer is formed from a material having a coefficient of thermal expansion within ±10% of a coefficient of thermal expansion of adjacent wall material. The seaming prevents moisture and bacteria from entering the joints, and does not fracture due to thermal expansion and contraction of the walls.

Abstract: A protective coating and a method for applying the protective coating to a wall of a freezer enclosure includes applying a screen to the wall wherein the screen includes a plurality of intersecting elements forming a plurality of openings. One or more coatings of a polymer are then applied to the screen in a sufficient quantity to coat the screen and permeate the plurality of openings through to the wall. The polymer is then allowed to solidify or cure thereby creating a temperature, abrasion and chemical resistant protective coating on or within the freezer enclosure.

Abstract: In an excavating machine having a ring gear and a rotating frame including a top and bottom plate, an assembly for rotating the frame relative to the ring gear includes a plurality of drive units, each of the drive units is mounted to the bottom plate and is disposed between the top and bottom plates of the rotating frame. Each of the drive units further includes a pinion extending below the bottom plate and adjacent to the ring gear for driving engagement with the ring gear.

Abstract: A frame for an excavating machine having a ring gear wherein the frame is rotated with respect to the ring gear includes top and bottom plates. A plurality of compartments are circularly disposed within the frame and between the plates. A plurality of drive units are provided wherein each drive unit is mounted within one of the plurality of compartments below the top plate. The drive units extend below the bottom plate for driving engagement with the ring gear. A plurality of radially disposed bulkheads are located within the frame between the top and bottom plates and between the plurality of compartments.

Abstract: An improved load compensating roller support for a device having upper and lower frames moveable with respect to each other and having conical shaped roller bearings, each of which is rotatably mounted on a stretchable rod whereby when a load exceeding a predetermined amount is placed on one of said bearings, the rod temporarily stretches allowing the bearing to move axially along the converging inclined surfaces of the upper and lower bearing rails so as to allow the bearing to self-adjust and allow the upper and lower bearing rails to move closer together and cause the load to be distributed to adjacent bearings during relative movement of said upper and lower frames with respect to each other.

Abstract: An improved apparatus and method for braking the rotation of a centrifuge rotor is disclosed comprising magnet means operable in a first condition wherein substantially no eddy currents are induced in a rotating rotor made of electrically conductive material by the magnetic flux of the magnet means and a second condition wherein eddy currents are induced into the rotating rotor sufficiently to slow the rotor. In one embodiment, magnet means is movable from a first position wherein substantially no eddy currents are induced in an electrically conductive portion of the rotating rotor by the magnetic flux to a second position wherein eddy currents are induced into the rotating rotor in a quantity sufficient to slow the rotor.