Abstract: One type of bookbinding strip consists of a male strip with plural flexible studs projecting therefrom and a female strip with complementary holes and grooves in the outer surface thereof extending from each hole. The studs are inserted through holes in the punched paper, then through the holes in the female strip. The present invention compresses the strips toward each other with the paper therebetween and then, upon manual actuation of a lever, causes blocks carrying rollers to bend 90.degree. the portion of the studs projecting beyond the female strip, causing these portions to snap into the grooves. Since the grooves on each end of the strip extend toward the middle of the strip, two blocks are used, each moving inward toward the center upon actuation of the lever.

Abstract: A dental mirror is modified to provide an orange filter to block ultraviolet or blue light from a light source frequently used to cure plastic tooth filling materials. Various filter means are disclosed. Thus the glass of a dentist's hand held mirror may be colored orange or amber and the front surface may be a two-way mirror. Second, the clear glass of the mirror may be backed by a transparent plastic colored orange or amber, the front surface being a two-way mirror. Third, a bottomless mirror may be coated on its back surface with a chemical deposit which absorbs ultraviolet and blue light. These are some of several alternatives described. The mirror may be used in the same manner as conventional mirrors. When the dentist illuminates the ultraviolet lamp to cure plastic fillings, the filter is interposed between the light source and the eyes, preventing damage to the retinas which might otherwise occur.

Abstract: A wafer retention arrangement is disclosed for use with wafer stripping machines and the like which include a housing and a turret rotatably coupled to the housing for rotation about a selected axis, the turret being formed with a plurality of pockets that are adapted to retain a wafer. The wafer retention arrangement for each pocket includes a plurality of clips disposed about the periphery of the pocket to support a retained wafer. A latching mechanism cooperates with the support means to hold the wafer within the pocket. The latching mechanism is pivotally mounted to the turret for rotation about an axis that is substantially parallel to the surface of a wafer held within its associated pocket. The pivot point about which the latch mechanism rotates is substantially adjacent the edge of the wafer but spaced apart from the wafer plane.

Abstract: Pieces of a conventional jigsaw picture puzzle are cut to fit within a frame and over a base. Each piece has a suitable actuator (e.g., a magnet) embedded therein. The base has a switch (e.g., a magnetic switch) located below the location of the magnet of a particular piece when that piece is properly positioned within the frame to "solve" the puzzle. The switches are wired in series with a source of power, a melody generator and an amplifier. When the puzzle pieces are in proper position, the melody generator produces a tune appropriate for the picture of the puzzle. Several different puzzles may be provided fitting within the same frame. For each puzzle there is a key piece. For different puzzles the switch actuator of the key piece of located in a different location. A separate switch is located on the base below each actuator of the key piece and is wired to generate a different tune by being in series with a different melody generator. Instead of generating tunes, the device may actuate lights or speech.

Abstract: Transfer mechanism to pick up an object such as a wafer used in the manufacture of semiconductor chips from one location, lift the object, transfer the same laterally, lower it and later deposit the same in another location. A horizontal feedscrew mounted in a stationary base controls horizontal reciprocation of a transverse housing. A vertical feedscrew mounted in the transverse housing controls vertical reciprocation of a second housing. Supported by the second housing are one or more lifts. Each lift has guide rods fixed relative to the second housing and a stop on its lower end. Parallel and adjacent the guide rods is a reciprocating rod carrying a gripper on its lower end. At the end of the vertical movement of the second housing the reciprocating rod moves the gripper away from the stop so that a wafer may rest on the guide rods. As the second housing moves up, the gripper clamps the wafer against the stop. Motors drive the feedscrews to lift the wafer, move it transversely and lower it.

Abstract: A signal device is mounted on the inside of the door of a curbside mailbox. Opening and then closing the door closes a switch (mechanical switch, gravity actuated, a mercury switch or a photo diode) to emit a radio signal. A receiver in the residence, when actuated by the radio signal, notifies the occupant by an audible and/or visual signal.

Abstract: A mounting rail is attached, preferably horizontally to a wall or a hospital wall unit. The front of the rail has a longitudinal opening, the upper edge of the opening being offset downward. Inside the front of the bar the opening widens out upwardly and, to a lesser extent, downward. Longitudinal rounded cross-section grooves are formed in the top and bottom of the bar, spaced slightly inward from the front. Many different styles of clamps for hospital equipment brackets fit the rail. In one form of bracket clamp has a back face which fits flush with the front of the bar and has a top stud with a downward bead which fits into the top longitudinal groove. The bottom stud is rotatable and has a rounded cross section stud formed with a flat. When the flat is uppermost, the clamp may be removed or slid along the bar, but when turned away from the bar the clamp is locked. A twist dial on the front of the clamp turns the lower stud.

Abstract: A mask to protect physicians, dentists and technicians from spatter from patients afflicted with various diseases (including A.I.D.S.) is assembled from two parts, which may be shipped and stored flat, may be sterilized, and are so inexpensive in materials and cost of fabrication that they may be disposed of after use. In one form of the invention, a visor is formed of a flat piece of sheet rubber having two tails provided with interfitting snaps. The tails are brought around the back of the head and the proper snaps or other fasteners adjusted to accommodate the head size of the wearer. This operation causes the flat sheet to assume a curved visor shape fitting around the forehead. In another embodiment, a hole is punched in a curved sheet of elastic material of a size so that it may be drawn down over the head. In a further embodiment, a piece of stretchable rubber-like tubing has opposite ends attached to ends of the tails of the visor.

Abstract: A window screen is attached to a sliding sash and to the sill. Fixed to the screen are two or more vertical bands of coil spring material. Thus when the sash is closed the springs cause the screen to coil tightly. As the sash is raised, the screen is uncoiled so that it covers the opening but remains taut. The coil may be located at the middle of opening or at the top. A housing integral with the sash end of the screen or surrounding the spring coil protects the coil from weather and debris.

Abstract: To protect dentists, physicians, their assistants and others from contamination from contact with blood, bodily fluids and the like of patients, a transparent shield extends from the forehead to below the mouth and partially around the sides of the face. The shield is supported spaced from the face by a visor extending forward from the forehead. The visor is supported by a band around the back of the head. The present invention fabricates the shield, visor and head bands from a single blank, suitably die cut, all interconnected. The combined shield, visor and head bands may be attached to a surgeon's cap or the head bands may be eliminated and the cap attached to the inner edge of the visor.

Abstract: To protect a surgeon or operating room personnel from splatter from a patient afflicted with various diseases (including A.I.D.S.) a transparent shield is supported in front of the face hanging down to about the chin. A conventional surgeon's disposable cap is fixed to a visor which projects forward and down from the forehead. The upper edge of the shield is supported by the visor.

Abstract: Apparatus for stripping photoresist and other coatings from integrated circuit wafers comprises a series of vertically positioned casings with rotary turrets within each casing each accommodating approximately 10 wafers. Wafers are received in conventional "boats", lifted one at a time and inserted in a pocket in the first turret. The turret indexes intermittently, immersing the wafer in solvent until it travels almost a full 360.degree.; the wafer is then lifted from the first turret and inserted in a second turret which immerses the wafer during another almost 360.degree. travel in additional solvent. Toward the end of travel in the second turret a spray nozzle strips all remaining photoresist from the wafer. The wafer is then lifted from the second turret and inserted in a first pocket, optionally containing alcohol.

Abstract: Male and female book binding strips are packaged in cassettes and the respective cassettes are stacked in male and female hopper stations. Punched sheets are deposited in a staging station. The components of the book are then assembled in an assembly station. Thus the stack of sheets is fed onto one jaw and one male strip is fed onto that jaw while a female strip is fed onto the opposite jaw superimposed above the first-mentioned jaw. The two jaws are moved toward each other until the stack is loosely held therebetween. Thereupon the jaws are pivoted to vertical position, the stack resting on a base plate attached to one jaw. The stack is jogged so that the holes in the sheets are aligned with each other and with the holes in the female strip. The male strip is pushed inward toward the stack, the studs fitting through the holes in the sheets and through the female strip.

Abstract: A rotary pump has a block with inlet and outlet ducts and ports. A pump housing forming a pump cavity and accommodating working means of the pump, e.g., gears, is located on one side of the pump block, whereas drive means such as a magnetic coupling are placed on the other side of the block. In the case of a gear pump, the driving gear is connected to the drive magnet of the coupling through a drive shaft which passes through the axial bore in the block. The drive gear meshes with a driven gear which is mounted on a second shaft, also supported in bushings in the block. One set of ends of the shafts extends outside the pump housing and are inserted into bushings loosely fitted in recesses of a bearing support plate. This plate is attached to the block by removable screws extending through holes in the supporting plate and pump housing.

Abstract: For convenient packaging of plastic bookbinding strips, cassettes are provided. The end edges of each strip are received in channels formed in opposed side rails. The rails engage adjacent either end the depending legs of transverse spacer bars. The spacer bars have plural sockets to engage projections on the upper ends of the legs so that the spacing between side rails may be varied to accommodate strips of different lengths--e.g., 81/2 inches, 11 inches, etc. Different length legs may be used to accommodate different length studs formed on the strips. By eliminating the legs entirely, flat female binding strips may be packaged in the cassette. A detent is provided in the ends of the rails preventing removal of strips until the detent is bent out of position. The cassette is especially useful in equipment which mechanically assembles punched sheets and strips preparatory to binding a book in a binding machine.

Abstract: A plastic cap for a container neck formed with upper and lower external locking beads has a top disk from which depends an upper outer skirt having an upper internal locking bead and a larger diameter lower skirt having a lower internal locking bead. Between the skirt sections is an external outward extending flange which is weakened by a notch cut in its outer corner. The interior of the skirt is formed with an outward extending shoulder at a lower elevation than said external outward extending flange and the lower skirt wall intersects said outward extending shoulder in a circular intersection. A circumferential line of minimum thickness extends downward-inward from said notch to said line of intersection. When the cap is seated on the neck the upper and lower beads interengage, the cap cannot be removed without evidence of tampering.

Abstract: A crucible contains a metal to be evaporated by heating from an electron beam source wherein the path of the electrons is controlled by a horizontal transverse magnetic field over the source and crucible. A number of small individual magnets are arranged vertically along opposite sides of the crucible parallel to the beam path. One end of each such magnet is in the closest position possible to deliver its flux lines to the magnetic field area. The magnets maybe permanent or electro- or a combination thereof. By varying the positions of the magnets, the field generated may be controlled in the desired manner.

Abstract: A machine for punching holes in batches of sheets has a receptor which holds a stack of sheets in vertical position. A timing mechanism sequentially jogs and segregates a first batch from the receptor and deposits same in a vertical punch slot. At the bottom of the punch slot is a horizontally reciprocating punch which forms the holes. Meanwhile, a second batch is bieng jogged and segregated. The first and second batches are gripped and lifted. The first batch is deposited in a vertical discharge slot from which it is transferred to a deposit tray. The second batch is simultaneously punched while in the punch slot.

Abstract: The neck of a plastic container for motor oil or similar thin fluids is formed wiht plural, discrete, smooth external conical surfaces and further formed with shoulders below each such surface. The cap for such neck has an interior generally complementary to the exterior of the neck. Internal cap beads engage under the shoulders of the neck. At least the lowermost cap shoulder is preferably interrupted. Above each bead is an internal circumferential rib which seals against the corresponding smooth conical surface of the neck. The lower portion of the cap including the lowermost bead may be torn away, permitting the upper part of the cap, which functions as a reclosure cap, to be pried off the neck. For such purpose, the cap wall is made thin below the second locking bead and a downward-slanted scoreline extends from the thin area to the bottom edge of the cap. A tear tab extends below the bottom edge of the cap adjacent the terminals of the score line.

Abstract: A protector to prevent opening of doors of adjacent vehicles from denting a car door is disclosed. The protector has a hollow outer tube which may be shortened to proper size to fit the door. In cross-section, the tube has a rounded protuberance on its outside and a curved bottom with outward extending feet to prevent the tube from turning once it is applied. Within the outer tube is a highly resilient core of rubber or plastic material (also capable of being cut to a length less than the width of the car door) and hooks are screwed into the ends of the core. The hooks engage the vertical side edges of the door to hold the protector in place. Alternatively the protector may be formed of a single piece of resilient rubber or plastic material which may be cut to size and hooks screwed into the ends.