Abstract: Opposite wedge plates having identical non-parallel surfaces are joined to provide an optical element which will receive a portion (e.g. one-half) of an collimated input light beam, and project the side-by-side interference patterns directly onto a viewing screen to check for collimation of the beam. The instrument incorporates a rectangular, preferably cube shaped, housing having an input window in one side of the housing for admission of the beam being investigated, and a viewing window in another side located at right angles to the input window. A viewing screen (such as a diffusing plate) is fitted into or supported in the viewing window. The optical element is supported in and across the housing extending at forty-five degrees to the input window, from a corner adjacent the viewing window to an opposite corner. The optical element comprises a matched pair of optical wedge plates having the same wedge angle and being supported side-by-side with their wedge directions opposite.
Abstract: Two embodiments of a wiper blade attachment adapter are disclosed, each directed to different market areas. Both embodiments incorporate a partially hollow main body defined by side walls with opposed first and second ends, and joined to and spaced apart by a web extending from the end of the adapter to central pin receiving apertures in the side walls. A bar extends between the side walls at the second end, otherwise the space between the side walls is open between the bar at the second end and the web. The region of the web adjacent the pin apertures includes an extension of those apertures, forming a through open passage of generally keyhole configuration, open at its bottom, which can embrace a central retaining pin on the receptacle structure of the wiper's primary lever. A latch member is integrally attached to the first end of the adapter body by a flexible hinge member (e.g. a "living hinge") such that the latch member is a permanent movable part of the adapter.
Abstract: The target structure of this invention is comprised of a thin optically transparent lightguide sheet, preferably two sheets bonded together with flat sides. The thin sheet material is chosen to make a good pocket-size lightguide and provide an adequate tradeoff to cost, manufacturing ease, and internal reflective loss, and may be colored to provide an optical filter enhancing contrast of the viewed image by rejecting unwanted light. At the entrance edge of the target are side-by-side formations generating optically the lens and axicon function, and separately the reference lens function. The exit edges of the sheets are either flat and perpendicular to the faces, or at such an angle as to direct images at a prescribed angle with respect to the face of the sheet(s). The entrance edge of the one sheet is formed with a curve to produce the optical lens and axicon functions, the shape of which can be chosen to enhance any difference occuring between the images when the incoming beam is not on center.
Abstract: A router and other cutting tools with a fixed center such as drills, shapers, milling machines, etc., used for cutting wood, metal or other materials, is provided with a fence mechanism for either a table or the base of a portable tool, for rapid and easy settings of the fence with respect to the center of the cutting tool. This is accomplished by a pivot mounting of the fence on a table or on a portable tool base, with respect to a block pivoted to the table or tool base, wherein the center of the pivot for the block and the center for the pivot for the fence are on opposite sides of the cutting tool and located on a line which passes through the tool center and the respective pivot locations. The desired spacing of the fence to the tool can be achieved using accurate spacers between the fence and the block, even with the tool being mounted in place.
Abstract: An improved tool for, and a method of, crimping weatherstrips in an essentially continuous motion along the in-place weatherstrip, e.g. about a door flange or the like. the head is provided with a handle extending from the top therefrom at a convenient angle to allow an operator to assume a position alongside the door flange. The handle, or at least the grip thereof, is capable of swiveling about the longitudinal axis of the handle, to reduce stress on the hands, wrists, and arms of an operator by permitting guiding motion of the tool ahead around the door flange while minimizing the amount of turning of arms or hands, or re-positioning of the operator's body, as the tool is caused to progress entirely along the length of the weatherstrip. This length is often the entire perimeter of the door opening.
Abstract: A system (method and apparatus) for verifying/identifying a person based on contour of the knuckle surface of at least one hand, e.g. a digitized waveform unique to each individual. At an Enrollment Station a microcomputer is connected to a device for identifying the knuckle surface profile (e.g. a video camera or electromechanical contour sensing device). A candidate user grasps a grip handle, preferably vertically oriented, on the apparatus, positioning a fist before a viewing window and activating the device to scan or assess the fist and generate a contour of the user's knuckle surface contour. User's data comprises a knuckle contour, an assigned PIN, and optionally, information such as user's name, bank ID number, Social Security Number, and access restrictions. User's data may be stored as a profile (template) in an ID card, and/or in a master database containing data of all authorized users in a guarded system.
October 18, 1996
Date of Patent:
January 19, 1999
Personal Information & Entry Access Control, Incorporated
Abstract: A process for transmitting or storing energy in which a gasseous working fluid is compressed and cooled, relative to isentropic compression, by a coolant. The energy used to perform the compression is recovered by expansion, while heat from the coolant is used to reheat the working fluid, thus maximizing efficiency.
Abstract: Targets for use with scanning light beam leveling/marking devices, are constructed with their elements assembled as unitary target structure. The lens and beam divider functions are provided by optical quality fresnel lenses attached to or formed on a polycarbonate block, these parts thus can be made essentially an integral element. These special fresnel lens which are optically equivalent of the input lens and beam dividing axicon, and the viewing screen diffuser function provided by a frosted viewing plate. A separate fresnel lens is mounted alongside the beam dividing lenses and functions to provide a reference image on the viewing screen. The optical path for the impinging light beam (after it is divided) may be transmitted directly through the body block, from the input to the view window, or through a reflector surface at a side of the block, the block body of the target functioning as a waveguide.
Abstract: A tab for use with an easy-open can end, which is made free from any protrusion with a cut edge thereon that would otherwise contact a finger or a lip of the user without a increasing the number of manufacturing steps to complete the tab. A tab having a body, a nose end with a tip, an opposite grip end, and an island formed within the tab body and attached to the nose end along a hinge, the island including a rivet hole for receiving a rivet on a can end panel to attach the tab to the end panel. The tab body is joined to a carrier strip, from which the tabs are made, by a joint formed in a tab making process. In a tab severing process, the joint is cut off to sever the tab from the strip, leaving a protrusion on the tab with a cut edge. The tip of the nose has a gap into which the protrusion can be bent or curled, to guard the cut edge, as the tab is moved to attach the island to the end panel with a rivet.
Abstract: The opening device comprises a closure flap (7) which is pivotable about a hinge (2), so that a pouring opening (4) is able to be opened and closed again. The edge (5) of the pouring opening (4) is elastically deformable. A projection (12) is provided in the form of a device for keeping open the closure flap (7) in such a way that the projection (12) is pulled over the edge (5) of the pouring opening (4) during the opening operation, and then bears on the edge and keeps the closure flap (7) open. To close it again, the projection can be pressed by slight pressure over the edge of the pouring opening. The new proposed design of the device for keeping a flap open advantageously prevents the device from becoming damaged in the closed condition, possibly if packs provided with the opening device are stacked. In addition, the device for keeping flaps open is very simple to manufacture.
Abstract: A roller measurement fixture is comprised of a series of small in-line rollers mounted in one or more rows, forming a receiving cradle device. An extruded part to be measured is cradled in a semi-circular arrangement of the rollers and straightens as it settles under its own weight. The cradle device will accommodate many different cross-sections of extruded seal. The rollers are free to rotate as the part is placed into the fixture and properly located. Friction front these rollers is negligible, therefore the part remains in, or attains, its free state, without internal stresses, throughout the loading and measurement process. Thus, the extruded part is limp within the cradle, being loaded so as to contact a head or alignment stop at one end of the cradle. A floating stop riding on the rollers engages the other end of the part and cooperates with a scale on the cradle as a means of acquiring the measurements.
Abstract: A frangible region is provided around at least one end of the outer connector part or cover of a hose and connector assembly, whereby a significant portion of such outer cover can be easily removed from the frangible connection to its end. This frees the end of the underlying hose to be removed from the inner connector part, a new hose part engaged over the exposed portion of the inner connector part, and a conventional clamp used to secure the new hose piece in place on the inner connector part. The outer jacket can be comprised of a plurality of bands, each band molded in place around a hose end, instead of a single piece outer jacket. The frangible region is created in the original molding process, and can, if desired, be formed on more than one of the ends of the outer molded connector part or the bands.
Abstract: A method and an apparatus are provided for manufacturing a tab for use with an easy-open can end, which tab is free from any exposed protrusion or cut edge thereon that would otherwise contact a finger or a lip of the user, without an increase in the number of manufacturing steps. A tab, attached to a carrier strip by a joint, is formed in a tab forming process, and the tab is severed from the strip in a joint severing process wherein the joint is cut off close to the tab nose to separate the tab from the strip. The tab with a protrusion which has a cut edge, remaining on the tab nose, is lowered while being held against horizontal movement. The protrusion is brought into engagement with a curling surface of an arm which is supported to swing in a downward passage through which the tab descends. When the tab is lowered in the downward passage, the arm is swung to cause the curling surface to press against the tab and curl the protrusion onto the tab.
January 31, 1997
Date of Patent:
April 21, 1998
Dayton Systems Group, Inc.
James R. Schubert, John F. Schubert, Steven T. Cook
Abstract: This disclosure is directed to the use of rigid and semi-rigid materials to form a decorative covering device for standard folding banquet and convention tables. Through the use of a hinging mechanism on the front, rear and sides, this provides a device which can be folded up into an inside-out, flat configuration that can be easily transported and stored with minimal wear damage to its finished surfaces. The normally vertical front, rear and side sections of this device fold independently of one another into three different positions. Front, rear and side sections are a sandwich composition of plastic laminate and foam; the top section is a hardwood framework covered with a sandwich composition of plastic laminate and plywood. The first position of the sections is the operational position where the front, rear, and two side sections are deployed in a vertical position, hanging down from the top section, which rests upon the folding table.
Abstract: A bifurcated backing member (20) for use in a wiper blade assembly, the bifurcated backing member (20) being formed from an elongated strip (10) having a centrally thinned section (11) which is then laterally displaced such that the edge (14) of the thinned section (11) coincides with the adjacent edges (15a, 15b) of the remaining parts of the elongated strip (10), the elongated strip (10) then being bent around the thinned section 11 to form the bifurcated backing member with substantially parallel legs (13).
Abstract: A number of embodiments of targets, for use with scanning light beam leveling/marking devices, are constructed with their elements incorporated as target structure. The lens and beam divider functions are formed into optical quality parts such as a polycarbonate block, these parts thus are made essentially as an integral element, or the function of those elements can be provided by a first hologram which is optically equivalent of the input lens and beam dividing axicon, and the viewing screen diffuser function provided by a second hologram, and these holograms may be made on a single substrate, to improve and maintain alignment. The optical path for the impinging light beam (after it is divided) may be transmitted and reflected from the input to the view window through one or more reflector surfaces, with the body of the target functioning as a waveguide.
Abstract: A method of controlling chosen geometries in sintering operations uses an insert in the preform which is to be sintered, which insert can withstand sintering temperatures without distortion, and which will not bond to the preform and thus prevent removal subsequent to sintering. In powder metal sintering, inexpensive ceramic alumina inserts satisfy these criteria. A powdered metal preform is caused to shrink onto a precisely formed ceramic insert, thereby to determine final shape accurately. An insert larger in diameter than that of the uninserted undistorted preform final diameter may be used if potential impact on geometry density is factored into its selection. An insert shape other than that of the preform undistorted final shape may be used to create final geometries different by design than those of the preform.