Abstract: A roof ridge ventilator to be installed under a cap shingle includes a one piece cover member of an elongated shape including a pair of flaps, each flap having one upper surface over which cap shingles are secured and also having downwardly facing lower surfaces, a pair of vents respectively secured to the lower surface of the cover member flaps, each vent including at least one set of shielded louvers having a plurality of openings for deflecting air flow while maintaining a minimum free area for air passage such that the air flowing therethrough is substantially reduced in velocity to limit the infiltration of foreign matter. A plurality of longitudinally spaced supports in each vent extend substantially vertically to permit nailing onto the roof such that the vent does not collapse during installation and such that the net free area remains intact.

Abstract: A method for producing a selectively surface hardened cast iron part includes uniformly heating the surface of the part by immersion into a molten metallic bath until a desired thickness of surface austenite is produced, and thereafter quenching the heated cast iron part in a liquid quenching bath which is maintained at a temperature of between about 450.degree. to about 800.degree. F. for about 10 minutes to about 4 hours. The resultant selectively surface hardened cast iron part is surface hardened with the bulk of the body of the part remaining untempered. An apparatus for performing this process includes a molten metal bath chamber for containing the molten metal and a molten salt bath quenching chamber for quenching the cast iron parts with a conveyor means extending between the molten metal bath and the molten salt bath chambers. A second conveyor means removes the parts from the molten salt bath chamber.

Abstract: A protective suite to protect a skater against injuries caused by falling during skating which has interior flap-type pockets designed to hold removable compressible padding inserts at areas susceptible to falling injuries. The pockets have a pocket body and an opening and are attached to the suit while inverted so that the opening is exposed to receive a compressible padding insert such that, when the pocket is flipped down, the pocket openign is between the pocket body and the portion of the suit to which the pocket is attached, thereby holding the compressible insert therein without allowing the compressible insert to slip upward and out of the pocket, yet allowing for removal of the compressible insert so that the protective suit may be washed without the insert in place.

Abstract: A roof ventilator (10) comprises a contoured, substantially rounded cover member (12) including a nailing tab and flange configuration to allow use of the ventilator on roofs and roof ridges of different angles and pitches. A vent (14) is located in the cover member (12), and the vent has openings (16) to permit air circulation through the roof or roof ridge, and includes weepage openings (24) at the bottom of the vent to permit any collected liquids to drain therethrough. The shape of the vent is designed to deflect air flow over the roof ventilator, thereby substantially preventing foreign particle entry through the roof ventilator into the building.

Abstract: Disclosed is a hog scraper paddle for dehairing and polishing hog carcasses and the like, including a resiliently flexible paddle body having a substantially rectangular block shape, said body being made of an easy-to-clean, substantially non-porous thermoplastic material having a softening temperature endotherm peak greater than about 350.degree. F. and a flexular modulus value between about 100 and 150,000 psi preferably either between about 100 and 6,000 or between about 30,000 and 150,000 psi. The paddle body may include a mounting means and openings therein for receiving the mounting means. At least one scraper blade may be attached to the paddle body for dehairing or polishing a carcass. Also disclosed is a method for making a hog scraper paddle of thermoplastic material by injection molding, compression molding, or blow molding. Post manufacturing treatments, such as annealing and heating are also disclosed.

Abstract: An austemperable cast iron which includes an ausferritic matrix, the cast iron having a silicon content of from about 1.6 to about 2.4 weight percent, and a carbon content of from about 1.6 to about 2.2 weight percent, such that the carbon equivalent of the cast iron is from about 2.1 to about 3.0 weight percent. The austempered cast iron is prepared by melting the cast iron composition; to about 1650.degree.-1900.degree. F. and maintaining the temperature of the casting at that temperature until substantially all of the eutectic carbide particles convert to temper graphite nodules to form a temper graphite-containing casting, then cooling the temper graphite-containing casting to about 1500.degree.-1750.degree. F. and maintaining the temperature of the tempered graphite-coating at about 1500.degree.-1750.degree. F. until a fully austenitic matrix is achieved, and then quenching and cooling the ausferritic matrix casting to room temperature before bainite is formed.

Abstract: Disclosed is a shower enlarger assembly including a mounting bracket for engaging to a wall the ends of a bent shower curtain rod having an offset medial section for providing a greater stall space and for holding a shower curtain out of body contact. The mounting bracket includes a supporting backplate for contact with the wall and a recessed area located midsection of the supporting backplate for receiving the end of the bent shower curtain rod. The bent shower curtain rod is slidably inserted and rotatably mounted within the recessed area of the backplate. The bent shower curtain rod has attached thereto an integral rotating stop member extending outwardly from the curtain rod. A substantially semicircular fixed stop member extends outwardly from the face of the backplate and receives the integral rotating stop member attached to the bent shower curtain rod.

Abstract: An ornamentally-shaped, nonrectangular interconnected or interfolded disposable paper product, which includes ornamentally-shaped forms including male protrusions and female indentations. On the interconnected embodiments perforations are located between adjacent and contiguous ornamentally-shaped forms at the points of contiguities. In addition to the paper forms being cut to certain shapes, the perforations finish the definition of the ornamentally-shaped forms which may include such forms as hearts, stars, flowers, beer can motifs, and other such forms. These disposable paper products may include bathroom tissue, paper towels, and pop-up facial tissues and paper napkins.

Abstract: An audio equipment carrier assembly to be mounted on the handlebars or other like support members of various two and three wheel vehicles. The preferred embodiment includes a carrier assembly body adapted to receive and contain a Walkman-style personal radio having headphones which are very popular. Bicyclists and the like which desire to listen to music while riding may use the equipment carrier of the present invention to hold the radio or other audio equipment on the front of the bicycle while wearing the headphones for the equipment, which is connected to the audio source.

Abstract: A closed mold assembly having a mold cavity therein, an ingate extending from the mold cavity through the mold assembly with an opening having an outer wall for immersion into a bath of molten metal, and an expendable cap fitting around the outer wall of the ingate having a continuously upward tapering dimension to urge the top larger of the molten metal in a bath away from the ingate opening during the immersion process to minimize impurity inclusion in the mold. The expendable cap is preferably made from a non-contaminating sacrificial material intended to be melted after immersion into the molten metal bath without being detrimental to the quality of the workpiece.

Abstract: A filter for removing mercury and other vapors from air passed therethrough includes at least one container having a plurality of cells, each cell having an inlet and an outlet oriented substantially in the direction of the flow of air passed therethrough. The cells are partially filled with disintegration-resistant activated carbon pellets to permit swirling of the pellets within the cells as air passes therethrough. The filter may also include a pre-filter made up of fibrous materials and a post-filter located downstream from the containers. In addition, a filter assembly for removing elemental and molecular contaminants and air-born bacteria from contaminated air includes a casing with a filter means inside, the cells of the filter means being partially filled with disintegration-resistant activated carbon pellets and at least one germicidal light within the casing for air disinfection as air passes through the casing.

Abstract: A cooking lid lifting support made of a lid lifter, handle, and a clip for removably attaching to a handle or a knob of a cooking vessel lid and supporting the lid on the side of a cooking vessel. Attached to the lid lifter is a handle which is integral with and permanently attached to the lid lifter. The handle is shaped to be complementary to the shape of a hand for lifting the lid lifter. A clip is attached to the handle on the lid lifter and is integral with and permanently attached to the handle. The clip includes a portion for receiving the side of a cooking vessel, and acts as a holder for holding the lid lifter and the lid thereto in a desired relation to the side of the cooking vessel. During operation, the lid lifter holds the handle or knob of a lid, and the clip holds the lid lifter to the side of the vessel. The drippings collected on the inside of the lid are thereby returned into the pan when in proper position.

Abstract: Disclosed is a hog scraper paddle for dehairing and polishing hog carcasses and the like, including a resiliently flexible paddle body having a tapering body thickness, said body being made of an easy-to-clean, substantially non-porous thermoplastic material having a softening temperature endotherm peak greater than about 350.degree. F. and a flexular modulus value between about 100 and 150,000 psi. The paddle body may include a mounting means and openings therein for receiving the mounting means. At least one scraper blade may be attached to the paddle body for dehairing or polishing a carcass. Also disclosed is a method for making a hog scraper paddle of thermoplastic material by injection molding, compression molding, or blow molding. Post manufacturing treatments, such as annealing and heating are also disclosed.

Abstract: A gas fired infrared burner ceramic tile retainer for securing ceramic burner tiles within a plenum including a one-piece cut-and-form stamped tile retainer made of continuous sheet metal includes a top portion which is substantially horizontal for engaging the burner tile edge and a transverse portion which is substantially perpendicular to the top portion which includes a plurality of tabs extending downwardly from the transverse portions. These tabs are placed at intervals around the bottom of the tile retainer and are adapted to be bent under the plenum which contains the burner tile. The plenum has a tile receiving lip around its upper outer perimeter, and the tabs are bent underneath this lip to secure the burner tile by sandwiching the outer edges of the burner tile between the tile retainer and the plenum tile receiving lip. The disclosed tile retainer furthermore helps to maintain a substantially gas tight seal between the ceramic tile and the plenum.

Abstract: Disclosed is a fastener including a first and a second member, the first member having a post attached thereto extending toward said second member in a complementary relation, and the second member being connected to the first in a hinge-like relation, the second member having an opening therein for receiving the post attached to the first member. The post is attached to the first member in a complementary relation to the opening in the second member, such that when the suspender fastener is in a closed position the post remains attached to the first member, extends through the fabric of the garment being supported, and is received by the opening in the second member, whereby the fabric of the garment being supported is substantially held fixed. Furthermore, also disclosed is a reinforcement placed in the fabric of the garment to be held, such that the reinforcement is positioned intermediate the first and second members when in operation.

Abstract: An infrared heater for fluid immersion apparatus is disclosed and includes a cylindrical ceramic foam radiant gas burner, the burner being made from retriculated ceramic foam having a porosity of about 40 to about 100 pores per linear inch. Also disclosed is a high emissivity coating on the reticulated ceramic foam burner element for substantially decreasing the likelihood of backflashing. In conjunction with the burner element, a cylindrical baffle having unevenly spaced openings distributes the gas mixtures within the burner element to enhance uniform burning.

Abstract: This invention pertains to a suction guide for endotracheal intubation stylet having a first portion made of substantially rigid material having a tubular shape with a plurality of openings for suctioning unwanted fluids therethrough, a second portion integral with and immediately adjacent to the first portion, being made of a semi-rigid material, said second portion having a tubular shape and a sufficient length to be bent and inserted into a human body cavity, and a third portion integral with and immediately adjacent to the second portion, being made of a flexible material having a tubular shape and of a sufficient length to extend from a body after insertion with an open end adapted for connection to a suction source. The second portion is semi-rigid and is inserted into the tracheal passage through the throat of the patient and acts as a guide for subsequent insertion of an endotracheal tube over the stylet.