Abstract: Knurled surfaces such as raised ribs are provided on the shell of a soft gelatin capsule in order to enhance gripping and manipulation of the capsule. The capsule has a removable tab at one end thereof which may also be provided with a knurled surface. One embodiment of the invention is a capsule used for delivery of medicaments to an external body surface. An alternative embodiment of the capsule is disclosed for insertion into a body orifice. The composition of the capsule includes a starch or starch derivative which gives the capsule a drier feel and increases the coefficient of friction of the surface of the shell, further improving the capsule's handling characteristics.

Abstract: A windshield wiper display container is disclosed which has a blister with an open top and a reclosable flap serving to close the open top of a blister. The flap has a pressure sensitive adhesive applied to its lower surface which acts to releasably seal the flap to the front wall of the blister. The user opens the container by lifting up on the flap and folding it up to expose the windshield wiper within the blister.

Abstract: An injection mold typically defines multiple cavities. A mold gate is provided which comprises a rotary spherical member having a sprue conduit extending transversely therethrough. Highly accurate sequential molding of multiple cavities can be achieved in this manner, as well as other advantages. Also, this arrangement permits a linear, straight sprue conduit which is free of any sharp turns.

Abstract: A process for the production of cellulose carbamate from cellulose and urea through the conversion of the cellulose with excess urea in an inert liquid organic reaction carrier at a temperature in the range of 130 .degree. to 160.degree. C., separation of the reaction carrier from the reaction mixture and washing of the reaction mixture with water. The cellulose is intimately mixed with an aqueous urea solution. Then the water in the solution is replaced with the organic reaction carrier, and the reaction of urea and cellulose is carried out in the presence of an inert gaseous carrier to remove the by-product ammonia. Thereafter, the organic reaction carrier remaining in the reaction product is replaced with an aqueous urea solution and the resulting suspension of cellulose carbamate in the urea solution is filtered and washed free of urea with water. No liquid ammonia is required in this process.

Abstract: A battery case accommodating a battery is inserted into a battery case housing of a head lamp body. As the battery case is inserted, one protrusion of a stopper held by a stopper holding portion of the housing moves downward through an opening. When accommodation of the battery case is completed, another protrusion of the stopper as well as the one protrusion returns upward, and the former protrusion is fitted in a recess of the battery case to prevent movement of the battery case. When the head lamp body is attached to a bracket fixed on a bicycle in that state, a protrusion of the bracket prevents movement of the one protrusion of the stopper.

Abstract: An anesthesia instrument consists of a single lumen epidural cannula with a Touhy-type beveled aperture, an epidural catheter and a spinal cannula. The anesthesia instrument is characterized in that, the diameter or the cross-section of the epidural cannula is so dimensioned that, even with the epidural catheter positioned within the same, there is still sufficient space for the sliding through of a spinal cannula. In one form of the invention, marking means are provided to indicate at the proximal end of the epidural cannula, the position of the tip of the spinal cannula being inserted in the epidural cannula.

Abstract: An apparatus and a method of mounting a power semiconductor (10) to an external heat sink (18) when both fastening faces (11, 13) of the semiconductor are inaccessible during the assembly process. The apparatus comprises a nut plate (20) that mates with the semiconductor (10) and a thermally conductive layer (28) that engages the nut plate (20) and wraps around the semiconductor (10) in a captive manner. The external heat sink (18) threadably engages the nut plate (20) without the need to access either fastening face (11, 13) of the semiconductor (10).

Abstract: A method of subscriber authentication suitable for a roaming service in a telecommunication capable of realizing an improved security for the secrecy of the authentication key. In this method, an authentication data Indicative of a tentative authentication key to be used only in the authentication at the second network is transmitted from the second network to the first network, and the first network enciphers this authentication data by using a permanent authentication key shared between the first network and the mobile subscriber, and transmits this enciphered authentication data to the mobile subscriber via the second network, such that the mobile subscriber can decipher this enciphered authentication data by using the permanent authentication key to obtain the tentative authentication key and subsequently carry out the authentication at the second network by using the obtained tentative authentication key, wlthout explicitly disclosing the permanent authentication key to the second service provider.

Abstract: Pharmaceutically acceptable solutions of acidic, basic or amphoteric pharmaceutical agents are disclosed. These solutions are suitable for encapsulation in gelatin capsules for subsequent oral administration and include the pharmaceutical agent, an ion species and a solvent system.

Abstract: The invention pertains to a cassette for storing a plurality of disk-like data carriers with two telescopically insertable, essentially closed, flat housing sections, open in the direction of insertion. The external housing section has attached to one side wall a prod formed as a rib with a stepped edge which projects into the interior of this housing. The steps rise from the bottom of the external housing section towards the open top. The internal housing section which holds the disks has an open top and a slot cut in one side wall and the bottom to receive the rib when the internal housing is nested in the external housing section. The steps on the rib serve to raise successive disks in the interior housing. To close the internal housing, the external housing is inverted and then telescoped with the external housing. The internal housing section, on the side opposite the slot, has a recess open towards the top of the internal housing section 1 which receives the rib in closed position.

Abstract: An integrally formed conveyor belt cleaning head (10) formed of a resilient material includes a substantially transversely extending cleaning tip portion (11). At least two integrally formed and substantially parallel, integrally spaced apart elongate arms (12) extend outwardly therefrom, substantially perpendicular to the transverse cleaning tip portion (11). The arms (12) extend into a substantially transverse base portion (14) which is adapted to engage with and/or be mounted to resilient mounting pad (18). Elongate reinforcing shoulders (19) extend at least partway along each of the arms (12).

Abstract: A tambour door for a cabinet having a series of hinged, vertical panel members which are precluded from moving vertically one with respect to the other by a plug which coacts with slots defined in the hinge elements connecting the adjacent tambour elongated panel members.

Abstract: A system for preventing entanglement of a wheeled tractor with wire or other wrappings, the system having at least one cutter assembly mounted to the frame of the tractor and designed to shear wire or other materials that can lodge between the axles and wheels of the tractor. The system can have two different cutter assemblies, one as described and one that moves in a scissor-like motion in synchronization with the undulating motion of the tractor's rear axle.

Abstract: A broadcast recording and playback device employing a "circular buffer" which constantly records one or more incoming audio or video program signals and a microprocessor for accessing the memory to read a playback signal from the circular buffer to display programming material delayed from its receipt by a selectable delay interval. The circular buffer is implemented by a digital memory. Subsystem comprising the combination of a semiconductor RAM memory and a disk memory operated under the control of a microprocessor such that incoming signals are constantly recorded as received while, at the same time, delayed signals are being read from the memory subsystem at a different memory location selected by a microprocessor to provide a user-selected time delay.

Abstract: Techniques for assuring the accuracy of the welding of a part including a part calibration cycle, a tap check cycle and a gap detection cycle. The part calibration cycle determines the electrical load presented by the part to the welder transformer. The tap check cycle verifies that the operator has set the correct tap on the primary of the welder transformer, The gap detection cycle finds the actual spacing between the platen when the ends of the part are substantially touching so that the ends of the part can be accurately spaced at the beginning of the weld cycle.