Abstract: A gunrail badge mount system includes a mount base having a mount socket, coupleable to a mounting bracket of a gunrail system. A badge element includes a badge plate configured to receive a marking thereon and a mounting boss sized and configured to be received into the mounting socket and hold the badge plate at a selected position and orientation relative to the mount base. The mounting boss includes an indexing element configured to engage a corresponding indexing feature of the mount socket while the badge plate is at the selected position and orientation relative to the mount base.

Abstract: An equipment cabinet employs a rack-mountable equipment enclosure surrounded by a base, a cap, and front and rear covers. Each cover consists of a bezel and a door reversibly mounted thereon via removable hinge pins. The bezels have sidewalls that rest against ledges on the edges of the enclosure to receive support therefrom. The door has a centrally-located latch, the latch having a pawl with an eccentric catch portion that engages a latch opening on a ledge extending from the bezel. The pawl also has a tab that rests between the ends of an arcuate raised portion on the rear of the door to limit the rotational travel of the pawl. The base, cap, and covers are configured so that the enclosure is surrounded by hollows forming a peripheral passageway for cabling and the like. The base and cap have front and rear handle-like projections through which cables may be routed, and the covers have inward-facing snap tabs that engage the handle-like projections to secure the covers to the base and cap.

Abstract: An equipment cabinet employs a rack-mountable equipment enclosure surrounded by a base, a cap, and front and rear covers. Each cover consists of a bezel and a door reversibly mounted thereon via removable hinge pins. The bezels have sidewalls that rest against ledges on the edges of the enclosure to receive support therefrom. The door has a centrally-located latch, the latch having a pawl with an eccentric catch portion that engages a latch opening on a ledge extending from the bezel. The pawl also has a tab that rests between the ends of an arcuate raised portion on the rear of the door to limit the rotational travel of the pawl.

Abstract: An identification panel for a cabinet for electronic equipment, such as computers or computer peripherals. A back panel is mounted to an intermediate window and doorframe member having a control door frame, and a translucent window aligned with the back panel. The back panel may incorporate permanent identifying artwork for the equipment. This assemblage is accommodated in an opening of, and secured to, an external cover frame. The cover frame opening also accommodates a control panel door mounted on the intermediate window and doorframe member to cover the doorframe opening and slidable behind the translucent window to uncover the doorframe opening. The translucent window has a part-cylindrical convex surface which projects through the cover frame opening to provide a lens effect which enhances the visibility of artwork provided on the back panel.

Abstract: The present invention concerns a filter system for a helical scanner drum of the type having a drum cover provided with an air vent. The filter system includes a replaceable air filter element for entrapping airborne particles when air is drawn through the filter element and means for removably securing the filter element to the drum cover such that the filter element covers the air vent.

Abstract: A reel pressure button assembly is used in a magnetic tape reel cassette for applying pressure to a tape reel. The reel pressure button assembly includes a substantially cylindrical reel pressure button and a portion of the cassette housing. The reel pressure button is formed as an integral, one-piece member and includes a central horizontal portion which is disposed within an opening in the cassette housing portion. A cylindrical portion of the button has a plurality of recesses and terminates in a flange. The housing portion includes a plurality of tabs which are received in respective recesses to secure the reel pressure button to the housing portion. A compression spring is mounted between the housing portion and the reel pressure button flange.

Abstract: The recording latch is pivotably mountable in a recording cassette between a record position and a no-record position. A plug at the bottom of the latch selectively blocks the record opening in the bottom wall of the cassette, and a flange at the top of the latch is selectively visible through the latch-engaging opening in the top wall. Two tabs are mounted on the flange, and the top wall of the cassette includes a record groove and a no-record groove. The tabs engage the record groove when the cassette can be used in the record mode and the tab engages the no-record groove when the cassette can not be used in the record mode. This engagement system is located entirely on the flange of the recording latch.

Abstract: An exterior rear view mirror assembly having a housing with a passage for directing a mixture of ambient air and conditioned air over the exterior surface of a side window of a vehicle. A mounting structure attached to the housing has a grille adjoining the interior of the vehicle and connected to a duct. Conditioned air is drawn from the vehicle interior through the grille to the duct which is in communication with the passage.

Abstract: Digital videocassettes are encoded by punching out breakaway tabs to permit a sensing mechanism on a recorder to identify key characteristics of each cassette. The encoding can be changed when the breakaway tabs are carried by an insert that can be remvably affixed to the cassettes. By employing such an insert, a number of problems are avoided such as possible contamination of the cassette and/or recorder by loose tabs. The tabs of the insert do not need to be breakaway when the inserts are initially formed to provide desired codes.

Abstract: A recording cassette has a latch that pivots between two positions. A plug at one extremity of the latch either blocks or unblocks a record/not record opening at an under wall of the cassette while a relatively large flange at the other extremity of the latch can either be seen or unseen at the label wall to indicate the record/not record status. By making the latch of a color that contrasts with the label wall, mistakes in observing the record/not record status are virtually precluded.

Abstract: The plastic molded article is produced by heating a mold by contact with a preheated salt bath. The salt bath is readily maintained at a uniform temperature and is self-insulating for energy efficiency. A noncontact infrared sensor monitors the mold cavity temperature while in the salt bath, and the mold is removed from the bath when the proper mold temperature is reached. A charge of plastic powder is introduced into the mold by clamping the mold to a powder slush box with the mold cavity confronting the opening of the box. The mold and box are then simultaneously rotated to pour the plastic charge into the mold. The plastic charge forms a skin on the cavity surface and additional plastic material may be built up to provide additional thickness. The mold and box are then separated; the mold is then postcured and cooled, whereupon the finished article may be removed from the mold.

Abstract: Compensation for errors in an amplitude conversion system caused by inaccuracies in and nonlinearities of system circuit components is realized by employing a self-compensation process in an amplitude measurement system (FIG. 1). In one embodiment first and second reference signals (from 111) are controllably supplied (under control of 105 via A1, A2SW1, SW2, 108, 112, 113 and 103) to a RMS-LOG converter circuit (104) to obtain a measure of the amplitudes of the reference signals (TA, TB) and convert the amplitudes into pulse signals. The pulse signals are supplied to a control circuit (105) for conversion into digital form and storage as reference numbers for future use. A test signal supplied from a remote location over a facility under evaluation is supplied (via T, R, 101, 102, 103) to the RMS-LOG converter (104) where the test signal amplitude (TMEAS) is measured and converted into a pulse signal.

Abstract: Reception of valid two-out-of-N incoming multifrequency signals is realized by employing a multifrequency detector (FIG. 1, 102) including a plurality of filters (FIG. 2, 202-1through 202-N) and a corresponding plurality of comparators (206-1 through 206-N). The comparators are jointly responsive to output signals from the filters and to a threshold level (RMS REF) dynamically generated (via 204) in response to the incoming signal for generating output pulse signals (103-1 through 103-N) representative of multifrequency tones which exceed the threshold level (RMS REF). The pulse signal outputs (103-1 through 103-N) from the multifrequency detector (102) are evaluated (by 105) to determine whether two and only two tones are present which meet a prescribed criteria. The criteria is that each tone be present for at least a predetermined minimum portion of a prescribed sampling interval and that both tones be present for at least a predetermined number of consecutive sampling intervals.