Abstract: Color-filled debossed indicia are provided on metal substrates. Colored tape comprising a layer of resinous film and a layer of thermoset adhesive wherein the film may be colored, the adhesive may be colored, or an additional layer of acrylic paint may be provided between the film and the adhesive, is interposed between indicia dies and the metal substrate during debossing. A portion of tape corresponding to the indicia is sheared away and deposited on the surface of the indicia. The conversion of kinetic energy to heat during the debossing operation is sufficient in some applications to permanently bond the tape to the metal substrate by means of the thermoset adhesive. If necessary, the tape may be heat treated and cooled to permanently bond the tape to the metal substrate.

Abstract: A pressure differential sensing device comprises a sealed housing having mounted therein a gas-filled flexible capsule and a switch operated by expansion of the capsule. The pressure differential sensing device is mounted to a pressurized chamber with the pressure of the chamber communicating with the interior of the housing and surrounding the capsule and monitors the chamber for gas leaks. The gas in the pressurized chamber and in the capsule both respond to variations in temperature in a like manner, and a relatively constant pressure differential is thereby maintained between the interior pressure of the capsule and the pressure of the housing. If gas leaks from the pressurized chamber, the pressure of the chamber decreases relative to the interior pressure of the capsule, and the capsule expands to operate the switch. Thus, the device is temperature compensated.The pressure differential sensing device is calibrated by adjusting the position of the switch relative to the capsule.

Abstract: Artificial intraocular lenses comprise an optical zone portion for implanting in the posterior chamber of an eye, posts extending from said optical zone portion through the iris into the anterior chamber thereof, and retaining means for securing to the ends of the posts, whereby said posts and retaining means hold and position the artificial intraocular lenses within the eye. In some embodiments, the posts and retaining means are configured for an interengaging press fit. In another embodiment the posts are attached to the retaining means and are adapted to be secured to the optical zone portion.

Abstract: An oven cooking monitor and method automatically control the cooking, to a selected degree of doneness, of a plurality of food times requiring different cooking times, thereby permitting the food items to be loaded into the oven in random size order and to be removed in the order in which they become done. In restaurant or fast food cooking a number of different roasts of beef of different sizes often are placed in an oven to be cooked to a uniform degree of doneness, or roasts of similar or different size are placed in an oven at different times. Uniform cooking, without overcooking, is achieved through the present invention by providing a separate disconnectable probe for each food item to generate a signal varying with the temperature sensed by each probe. A reference temperature signal is set to correspond to a desired degree of doneness, and the sensed temperature signal and reference temperature signal are compared, yielding an output signal when the sensed and reference temperatures match.

Abstract: An omnidirectional inertia switch comprises a conductive spherical seismic mass supported concentric with respect to a stationary spherical conductor by a spherical elastomeric suspension member which deforms under inertial loads and permits electrical contact between the seismic mass and the stationary conductor to provide a signal. In one embodiment, the stationary spherical conductor is positioned centrally in a spherical cavity. The spherical seismic mass is hollow and surrounds the stationary spherical conductor. The elastomeric suspension member is positioned between the surface of the spherical cavity and the outside surface of the spherical seismic mass. In another embodiment, the spherical seismic mass is positioned within a spherical cavity defined in a housing, and the elastomeric suspension member is positioned therebetween and includes a plurality of openings permitting contact therebetween.

Abstract: An air heater comprising a pipe assembly having an intake opening and an outlet opening which is horizontally supported by a stand and protected by a removable, open-topped sleeving. The pipe assembly is a series of internally interconnected pipes which provides a continuous air flow passageway from the intake opening to the outlet opening. The pipe assembly is heated by a small fire inside the sleeving while a pump forces cold air into the intake opening. As the pumped, cold air circulates through the heated pipe assembly, the air becomes heated, and hot air is expelled at the outlet opening.

Abstract: An internal combustion engine comprises a housing defining an air inlet opening, a first set of rotatably mounted interengaging air intake and compression rotor wheels, and an air passageway connecting said air intake and compression rotor wheels to a second set of rotatably mounted interengaging compression and metering rotor wheels. The compression and metering rotor wheels deliver air to a combustion chamber defined by the housing. Fuel is injected into the combustion chamber and ignited. The combustion chamber communicates with a third set of rotatably mounted interengaging output rotor wheels which are driven by the exhaust gases and are connected to drive the aforementioned rotor wheels. The working area of the output rotor wheels is greater than the working area of the compression and metering rotor wheels, wherein the combustion gases always drive the output rotor wheels.

Abstract: A road buoy generally comprises a weighted base and a collapsible marker portion. When the road buoy is in use, the collapsible portion, which is brightly painted for high visibility, is expanded to its full operational height. When the road buoy is being stored or transported, the collapsible marker portion is folded down to facilitate handling and to reduce the amount of storage space required. The collapsible marker portion, which can hold a warning flasher light, is removably attached to the weighted base permitting either portion of the road buoy to be easily repaired or quickly replaced if damaged.

Abstract: A fluid reservoir device for use in conjunction with fluid-filled systems, such as helicopter blade dampers, comprises a cylindrical chamber wall closed across its bottom by a mounting shank having a fluid inlet opening formed therethrough. A first piston is slideably mounted within the cylindrical chamber wall and spring biased downwardly therein, and a second piston is slideably mounted in the first piston, and is spring biased downwardly therein, the combined work surfaces of the first and second pistons closing the cylindrical chamber wall wherein a chamber is defined having a volume which varies according to the positions of the first and second pistons. The chamber is filled by moving the first piston (and the second piston mounted therein) upwardly, and the first piston is spring biased downward to force fluid from the chamber to the fluid-filled system as required.

Abstract: Artificial intraocular lenses comprise an optical zone portion adapted to be implanted in the posterior chamber of an eye, posts extending from said optical zone portion through the iris and into the anterior chamber thereof, and retaining means adapted to be secured to the ends of the posts, whereby said posts and retaining means hold and position the artificial intraocular lenses within the eye. In some embodiments, the posts and retaining means are configured for an interengaging press fit. In another embodiment the posts are attached to the retaining means and are adapted to be secured to the optical zone or lens portion positioned in the posterior chamber.

Abstract: Apparatus for keying the pivotal action of a lever action connector particularly where engagement criteria between the plug and receptacle is necessary to provide a multiple characteristic discrimination. The engagement criteria are incorporated between the complementary elements of the swivel means to render the assembly thereof impossible when an incompatibility exists therebetween. Each engagement criterion is attained by the compatible mating of a male key disposed on the receptacle with a female slot disposed on the plug. The engagement criterion may be either fixed or variable and if desirable, both fixed and variable criteria may be utilized in the same connector.

Abstract: A golf trainer device is comprised of a platform for supporting a golf ball thereon and means for adjustably supporting said platform at selectable heights above ground level. A novice golfer utilizes the device at different heights with short golf clubs beginning with a club approximately fifteen inches long and progressing to longer clubs as the novice improves. The platform is supported by an adjustably telescoping stem and stanchion or by sets of parallel spaced apart pivotally interconnected legs. The platform is covered with synthetic turf and a replaceable resilient golf tee is provided.

Abstract: Impact driven tools of the type generally comprising a bitter end bounded by a collar and a shank and a tip are provided with internal silencing means comprising an opening in the bitter end, said opening filled with a sound attenuating material, which is preferably steel shot loosely packed in the opening and retained therein by a force fit plug secured by a weld. The opening is preferably axial and extends through the bitter end to or below the collar. In large diameter impact driven tools multiple openings are provided parallel to the axis and terminating at staggered points. Each such hole is filled with a sound attenuating material, such as steel shot. The rams of impacting apparatus, or air hammers, are also provided with internal silencing means comprising at least one opening, each such opening being filled with sound attenuating material, which is preferably steel shot loosely packed and retained by a force fit plug secured by a weld.

Abstract: A double wiping female contact for engagement with straight male contacts of varying thickness, particularly where very high contact pressures must be developed between such contacts. Cooperatively configured spring members are disposed on the female contact to achieve a deflection bias which magnifies the contact pressure developed when the spring members are forced to separate by any distance. Contact pressures proportional to the magnitude of separation are attained beyond the elastic limit of the spring members by incorporating sufficient deflection bias to compensate for the permanent set incurred.

Abstract: A wireless electric swivel head hand lantern generally comprising a lantern battery, a lantern handle and a swivel head containing a lamp. Metal strips are used to connect the terminal posts of the lantern battery to the lamp in the swivel head. Electrical contact is made without the use of wires, solder, rivets or the like by positioning the metal strips so that portions of the surface areas of the strips are conjoined. Portions of the metal strips are disposed inside the swivel head and configured in such a manner that electrical contact with the lamp is automatically made and maintained by positioning the lamp in the swivel head and securing it in place.

Abstract: A ground fault interrupter (GFI) provided with a reversed line polarity lamp indicator to indicate proper installation of the GFI. The reversed line polarity lamp indicator includes a push button and a lamp connected in series between the line conductor of the GFI and ground. In a wiring system having a ground conductor, the series connection is between the line and the ground conductor in which case the reversed line polarity lamp indicator may also be used to check for open circuits in the ground conductor.

Abstract: Leaks are precluded in product containers with the bottle insert by structuring a rim thereon for establishing an inclined sealing interface. A diaphragm is structured within the bottle insert to provide either a cylindrical or a noncylindrical wipe over the particular type of applicator tip selected for use in the product container. Furthermore, provisions are incorporated within the bottle insert to block passage through the wiping diaphragm of misaligned comb type applicator tips and these provisions are made self-aligning for such tips with minor structural modification.

Abstract: A ground leakage differential current protective apparatus of the differential transformer type. An impedance is inserted in the grounded neutral line in series with the transformer and the load. A low impedance ground in the grounded neutral conductor still permits a potential to be developed across the grounded neutral winding so that the differential current required to initiate the tripping action is not substantially increased.