Abstract: Catamaran sailboats have their user support platforms improved to prevent the trampoline from disengaging from its support tubes by interposing a plurality of small plastic retainers having a hook-like cross-section spaced apart along the inboard side of the tube slots of the pair of support tubes located approximately at the beam of the sailboat by which the trampoline is supported.

Abstract: A modular jack yoke for use in mounting modular jacks to telephone terminal blocks and the like is presented. The yoke is a rectangular unit of solid construction with apertures at both ends to enable mounting of the yoke to a terminal block and bracket assembly, panel or other flat mounting surface. Located between the mounting apertures are two open areas for receiving modular jacks. The open areas include structure for mating the yoke with modular jacks. This mating structure effects snap locking of the modular jacks into position on the modular jack yoke.

Abstract: A stator assembly is associated with a rotor to form an alternator. The stator assembly has pole legs with pole faces, past which magnets on the rotor rotate. At least one coil bobbin with a coil thereon is slidably received over at least one of the pole legs, said at least one pole leg having a notch in a side thereof. A bobbin locking clip is positioned in a gap between a central aperture wall of the bobbin and the one side of the pole leg having the notch. The clip of springy material has two springy tabs for engagement in the notch and an embossment on a main body surface thereof, so as to provide three-point contact. The bobbin and coil to be wound thereon can be manufactured separate from the stator assembly, and then the bobbin with the coil can be slid on the pole legs after assembly. The stator is also assembled such that rivets are provided at a central portion, and rivets are provided near end faces of pole legs on which bobbins are not provided.

Abstract: A radio mounting assembly is disclosed having a pair of brackets for mounting a radio to an instrument panel of an automotive vehicle, a decorative trim bezel for concealing the space between the instrument panel and radio, fastener means for detachably connecting the bezel to the instrument panel without the fasteners being visible and wherein the bezel and the mounting brackets for the radio have cooperable means on there to automatically center and position the bezel relative to the radio face when being secured to the instrument panel.

Abstract: An in-dash radio installation kit for installing a radio or radios to a vehicle dash, comprises a frame having a main front panel, a forwardly facing break-away wall or walls integral with the a front sub-panel overlying the break-away wall or walls, and the main front panel defining a generally rectangular lower through opening located below the break-away wall or walls, and an auxiliary frame extending in registration with the lower through opening.

Abstract: A frame for a loudspeaker unit used, for example, in a television receiver, has provisions for optionally fastening one type of loudspeaker to the frame by a positively-locking fastening arrangement or another type of loudspeaker by screw fastening. Specifically, the frame includes both a positively-locking click-stop arrangement for snap-in fastening, and also clip elements for holding the loudspeaker during a screwing operation.

Abstract: An antitheft device for a car stereo mounted in the dashboard of a motor vehicle having bores extending through the front panel of its cabinet, the device comprising (i) release pins insertable through the respective bores, (ii) a latch plate movably attached to a side face of the cabinet to engage with a portion of the dashboard and disengageable therefrom be being moved by contact with the release pins when the release pins are inserted through the respective bores to thereby render the car stereo removable from the dashboard, (iii) a blocking plate for openably blocking a space between the latch plate and the bores, (iv) electromagnet form opening the blocking plate with an electromagnetic force, and (v) control circuit for controlling the operation of the electromagnet to hold the circuit out of operation at least while the engine key of the motor vehicle is not turned to "ON" position.

Abstract: A mounting plate for attachment to a wall or the like where a hole or aperture has been cut in the wall. The mounting plate comprises a generally planar base and a plurality of resilient fingers extending from one surface of the base. The fingers include a wall engaging surface facing the base to engage the back of the wall. The base has wall engaging contact areas spaced from the base and movable against a bias towards the base whereby the spacing between the wall engaging surfaces and the wall engaging contact areas is variable by movement of the wall engaging contact areas towards the base against the bias. The mounting plate in a preferred embodiment has anti-rotation means on the wall engaging contact areas to prevent movement of the mounting plate once attached to the wall.

Abstract: A telephone station including an optical display device fashioned as a display is provided. The display device is quickly and simply attachable by being pluggably connected to the telephone station by engagement of webs on the display device with springs in the telephone station.

Abstract: A fastener arrangement for securing a shell (14) of a brake booster (10) to the firewall (12) of a vehicle. An annular radial land (18) on the shell (14) is located adjacent a flange (22) on the firewall (12). A spring clip (26) acts on the land (18) to position a groove (20) between the land (18) and the end wall (16) of the shell (14) around the flange (22). The flange (22) axially retains the land (18) to connect the shell (14) to the firewall (12).

Abstract: A floating panel mount for an electrical connector comprises opposed pairs of multiple cantilevered latch structures. Each latch structure comprises a lower arm cantilevered from a mounting flange. An upper arm is cantilevered from the end of the lower arm remote from the mounting flange, and is angularly aligned thereto. A locking arm is cantilevered from the end of the upper arm remote from the lower arm such that the lower arm and the locking arm extend angularly from opposed ends of the upper arm and from opposite sides thereof. The maximum cross-sectional dimension defined by the upper and locking arms exceeds the maximum cross-sectional dimension of a mounting aperture in a panel. However, the cross-sectional dimensions defined by the upper arms is substantially less than the cross-sectional dimensions of the mounting aperture. The arms can be deflected to enale the latch structures to pass through the mounting aperture.

Abstract: A housing for installation onto switching boards with cutout slots has a front-side rim designed to overlap a cutout slot. Attachment elements constructed as sheet metal parts are mounted laterally on the housing, and are arranged for support on the back side of the switching board. The attachment elements have lateral edge areas mounted at an incline and extending at an angle diagonal to the front side of the housing. These lateral edge areas underlay correspondingly inclined, undercut areas of the housing's side wall and are affixed thereon.

Abstract: A wiring harness assembly includes an electrical connector terminated to a cable including several electrical conductors. The connector is mounted in a cavity defined between front, rear and side walls of a retainer including snap mounting structure for securing the retainer in a panel opening. A connector doorway in a retainer side wall permits the connector to be loaded into the side wall in a direction transverse to the connector mating direction, and the rear wall prevents contact mating forces from pushing the connector from the retainer. The connector is releasably retained in the cavity, and can be removed in the transverse direction for repair or replacement. The connector has freedom of movement within the retainer to facilitate automated assembly.

Abstract: A floating first electrical connector 11 (such as a receptacle) has a plurality of contacts adapted to mate with complementary contacts carried by a second electrical connector 21 (such as a plug). The receptacle 11 has a limited floating movement within the plane of an opening 12 in a panel 13 (of a power supply or other electrical apparatus) and a retaining clip 17 is snapped over the receptacle 11 (from externally of the power supply) to releasably secure the receptacle 11 on the panel 13, yet accommodate the limited floating movement of the receptacle 11. The receptacle 11 is retained by the retaining clip 17, externally of the power supply, but the receptacle 11 is only accessibly internally of the power supply. The arrangement permits a smooth engagement between the contacts on the plug 21 and receptacle 11, respectively, either by an axial sliding movement or by a relative angular movement therebetween.

Abstract: A clamping device for supporting a workpiece in a clamped condition. The device includes a split head fastener composed of a head having exterior and interior surfaces, and a threaded shaft attached to the head and extending substantially normally from the interior surface. The head is segmented by slots extending from the exterior surface toward the interior surface, and further defines a passageway extending inwardly along the axis from the exterior surface. To clamp a workpiece in the device, a tightening member carried on the shaft is rotated to bring it into contact with the interior surface of the head, in an outer surface region thereof only. This contact forces the segments surrounding the passageway to pivot toward the axis of the passageway, causing clamping of a workpiece received in the passageway.

Abstract: A car electronic device mounting assembly for mounting a car stereo or other car electronic device in a mounting aperture provided in a car body comprises a rectangular, hollow bracket fixed in the mounting aperture and having an engage hole formed in its side wall, lock claws provided on the car electronic device to engage the engage hole to hold the car device immovable with respect to the bracket, and an unlocking bar configured to resiliently retract the lock claws from the engage hole into the interior of the electronic device to unlock the electronic device from the bracket.

Abstract: A speaker wall and ceiling mounting bracket comprising a housing to support and secure the speaker and thin support wings extending from the housing and fastened to the frame members of the wall and ceiling.

Abstract: A conversion kit for use between a vehicle radio housing and a front trim panel, and adapting to the panel and radio as well as to an instrument panel that receives the radio, the kit comprising(a) a mounting panel unit having an opening therethrough to receive a frontwardly projecting portion of the radio structure, the mounting panel being rectangular, and defining four corners, longitudinally elongated opposite edges and laterally elongated opposite edges,(b) the panel unit forming four pairs of slots, respectively located proximate said four corners, the slots of each pair being longitudinally spaced apart and being alike to selectively receive and retain one locking clip in one slot of each pair, the slots oriented so that the four clips are receivable in the slots to unidirectionally slide into retaining engagement with edge portions of the instrument panel, while also adjustably attaching to the panel unit to block reverse sliding thereof, except when released.

Abstract: Fastening of flat component parts to a housing part by means of retaining clips is provided. This procedure should proceed quickly and without the assistance of a tool.To this end, the appertaining retaining clip is angularly fashioned and has its one leg engaging within a shaft-like receptacle. This leg lies partially against a wall of the housing part, whereas the other leg is supported against the component part under pre-tension.

Abstract: In a shock and vibration isolation system wherein a device having a top, bottom, sides, front and back is mounted on moving isolators between and in spaced relationship to top and bottom members, front operable locking apparatus for releasably holding the device in place against vertical, lateral and longitudinal movement during shipping. A top releasable locking assembly is disposed between the top member and the device and a bottom releasable locking assembly is disposed between the bottom member and the device. Each releasable locking assembly includes a first pivot bar pivotally mounted to the adjacent member and extending perpendicular to and between the sides of the device. An operating arm is attached to one end of the first pivot bar at right angles thereto and disposed so as to pivot in a plane close adjacent and parallel to the side of the device at the end between a first position lying along the adjacent member and a second position angularly disposed with respect to the adjacent member.

Abstract: A seat cushion is mounted as a vehicle floor panel by a plastic anchor member adapted to be snap-fitted into position in a panel aperture by means of locking fingers. The anchor member has an oval-sectioned tubular open-ended body with the interior of its side walls formed with parallel mutually opposed pairs of ribs defining a pair of spaced upwardly open V-shaped notches. Each pair of ribs have their lower ends interconnected by mutually opposed base flanges defining therebeteween an elongated gap. The base flange undersurfaces are sloped upwardly providing an inverted V-shaped locking catch. The catch is adapted to capture the striker upon it being forcefully pushed downwardly into the V-notches allowing the striker to snappingly pass through the gap.

Abstract: A convenience electrical connector that is snap-mounted to a wall panel. The body portion forms a body planar surface that is adapted to grip the inner wall of the panel. A cover secures the inner side of the body member. A pair of opposed biasable arms connected to the cover extend through side recesses to a position where keeper planar walls at the ends of the arms are positioned to grip the outer wall of the panel after being biased inwardly along keeper ramps by opposed edges of the panel opening. The connector comprises two units, the body and the cover with the two connected arms. Mounting is accomplished by inserting the arms into recesses and pressing the two units together. A pair of snap-in flanges at the ends of the cover are biased outwardly by clamped lock members at the side walls of the body portion and then self-biased into a locking mode with the body portion.

Abstract: An adjustable carriage assembly for a printing device having a print mechanism to be translated along a linear print path. The carriage assembly includes an upper carriage sub-assembly and a lower carriage sub-assembly, the lower carriage sub-assembly having a pair of laterally spaced arm members joined together by a pair of cross members. Each arm member has an open pivot slot and a support ramp portion. A spring coupled between the upper and lower carriage sub-assemblies in the region adjacent the pivot portions provides a spring detent for the upper carriage sub-assembly with respect to the lower carriage sub-assembly in both the first operative position and a second inoperative position. The guide members are adjustable eccentric washers.A cartridge latch is configured to be removably mounted in an aperture formed in a platform on the upper carriage sub-assembly.

Abstract: A control instrument which is mounted in a recess on a printed wiring board is disclosed. The control instrument includes terminals, provided at a bottom surface and offset from a central plane, which engage pattern portions formed at a bottom section of the recess. A resilient member is provided over a top portion the control instrument. Leg members of the resilient member extend over opposite side walls the control instrument. The leg members project outward at a central portion and have apertures formed therein. The control instrument can also have longitudinal grooves over which the leg members extend.

Abstract: A switch mounting device with a base having a pair of spaced parallel rails and a receiving member at one end of the rails which extends from the base a distance at least as great as the height of the switch side walls. Each of the rails includes a projecting guide which extends from the base a distance at least as great as the height of the switch side walls. The receiving member and projecting guides each have a lug formed thereon for engaging the upper surface of the switch when it is in place. The base is formed with first and second resilient cantilevered members, the first of which has a free end extending away from a receiving member and terminating in a lug which engages the side wall of the switch opposite the receiving member when the switch is in place. The second cantilevered member has a free end proximate the receiving member which bears against the lower surface of the switch to urge the switch toward the lugs.

Abstract: A vehicular lamp having a one piece open topped resilient housing containing an outer peripheral groove that permits the housing to be snapped into a receiving opening formed in a body panel of a vehicle. The housing further includes an inner peripheral groove located above the outer groove into which a lens is snap fitted to close the housing. The inner groove is offset from the outer groove a sufficient distance so that the lens can be removed and replaced without having to remove the housing from the body panel. An outwardly disposed lip protrudes from the top of the outer groove that is inclined downwardly over the groove opening so that it will form a biased seal against the rim of the panel opening when the lamp is snap-locked in place.

Abstract: A rectangular frame has a plurality of similar closed slots formed in each of the sides thereof. A tray for supporting a radio or the like has a plurality of tabs which are adapted to be fitted into selected slots formed on the frame as may be required for mounting a particular piece of radio equipment in a particular vehicle. A front panel for this radio equipment has similar tabs thereon so that it can selectively be mounted in a desired position for the particular radio installation with the tabs fitted into selected mating slots formed in the frame. Mounting brackets for the particular installation are fitted into selected slots on the frame to enable the proper mounting of the equipment in a vehicle.

Abstract: A retainer for holding an electrical box in a wall is made of a single contiguous piece of almost dead soft thin sheet metal, the retainer has a folded over and flattened and work hardened nose, a two layer leading protusion, a divergent barb, an elongate shank, and a multiple purpose outward flange having a round heel and a grasping catch for receiving an insertion tool. A method of installing and retaining an electrical box has the steps of inserting the protrusion and barb, grasping the retainer and pulling it taunt, and driving an outer end into the electrical box. A method of making the retainer has the steps of shearing a rectangular piece of soft metal, forming a barb, folding over a first end and the barb, and forming a catch for an insertion tool on a second end.

Abstract: A cutout (4) is made in a room wall (2) and flexible tubing (13) connected to a vacuum conduit (12) is pulled therethrough. A box (1) is attached to the tubing and includes a frame portion (15) for surrounding the cutout, and inwardly recessed portion (18) having side and top and bottom walls (19-22) and a back wall (23), and outwardly and inwardly extending annular connector flanges (25, 26) for connecting to the vacuum wand and the conduit flexible tubing. After the conduit tubing and box are connected, the box is pushed inwardly so that its recessed portion extends through the cutout into the wall. A slot (29, 30) is provided in each vertical sidewall of the box with the slot extending into the back wall so that it is generally L-shaped in section. A generally Z-shaped clip (33) having a long leg (35) and short leg (34) joined by a web (36) is provided for each slot.

Abstract: The disclosure relates to a bushing that can be interlocked with an electrical circuit protector without modification thereof to provide for snap-in mounting of the protector in a panel.

Abstract: A cabinet lock has an elongate body. An operating handle is connected to the body for pivotal movement about an axis that extends transverse to the length of the body. The body slidably mounts (1) a spring-projected latch bolt for linear movement along a path of travel that substantially parallels the axis of pivotal movement of the handle, and (2) an operating member for linear movement along a path of travel that substantially parallels the length of the body. The handle has a formation that drivingly engages the operating member for moving the operating member from a latched position to an unlatched position in response to pivotal movement of the handle from a nested position to an operating position.

Abstract: A front mounted rectangular pushbutton switch is clamped within a hole in the panel by screws accessible through a front opening of the switch housing which drive an external clamping assembly against the rear of the panel at the midpoints of four sides of the switch housing. The clamping assembly employs two screws at diagonally opposed corners of the housing, each of which controls movement of a clamp on two adjacent sides of the switch.

Abstract: An awning has a flexible awning panel having generally parallel upper and lower edges, an elongated winder secured to the upper edge and extending along and rotatable about a longitudinally extending winder axis, and a stabilizer bar secured to the lower edge. Respective longitudinally spaced hinged arms have outer ends secured to the stabilizer bar and inner ends. At least one mounting bracket adapted to be secured to a wall or ceiling surface is formed with two transversely spaced and longitudinally extending bracket pivots. At least one respective support engaged around the winder to support same is formed with a plurality of transversely spaced and longitudinally extending support pivots. Two links each having one end pivoted on the bracket at a respective one of the bracket pivots and another end pivoted on the support at a respective one of the support pivots form two opposite sides of a parallelogrammatic-type linkage and the support and bracket forming the other two opposite sides thereof.

Abstract: A spring clip for mounting a ventilator in an opening provided in a foundation or other wall structure. Preferably, two spring clips are used to retain the ventilator in the opening, one spring clip on each side of the ventilator. Each spring clip is made of resilient material and includes a front end adapted for attachment to the ventilator, a bulged intermediate portion which is deflected inwardly upon insertion of the ventilator in the opening, and a rear end located adjacent a side wall of the ventilator and which slides along the side walls as the bulged portion is deflected. The bulged portion presses against the side of the ventilator and a side of the opening in an elastic manner to retain the ventilator in the opening by frictional engagement. The need is eliminated for fasteners other than the spring clips in order to securely retain the ventilator in the opening. The need to modify the opening to allow the ventilator to be retained therein by conventional fasteners is also eliminated.

Abstract: A holding device for mounting an electronic component on a printed circuit board, is made up of an elastic plate member formed into a shape having a generally U-shaped cross section to provide a channel for receiving said electronic component therein. Thus the elastic plate member includes a pair of side plate portions for holding the electronic component therebetween. Each of the side plate portions is provided with a slot for receiving a part of a flange formed on a casing of the electronic component and a lug which is to be bound into the printed circuit board by a soldering process. By the use of this holding device, an electronic component which usually requires manual work is mounted on the pc board by an automatic soldering process.

Abstract: A conversion kit for use between a vehicle radio housing and a front trim panel, and adapting to the panel and radio as well as to an instrument panel that receives the radio, the kit comprising(a) a mounting panel unit having an opening therethrough to receive a frontwardly projecting portion of the radio structure, the mounting panel being rectangular, and defining four corners, longitudinally elongate opposite edges and laterally elongated opposite edges,(b) the panel unit forming four pairs of slots, respectively located proximate said four corners, the slots of each pair being longitudinally spaced apart and being alike to selectively receive and retain one locking clip in one slot of each pair, the slots oriented so that the four clips are receivable in the slots to unidirectionally slide into retaining engagement with edge portions of the instrument panel, while also adjustably attaching to the panel unit to block reverse sliding thereof, except when released.

Abstract: The present invention teaches a lockable lampholder mounting system wherein a housing containing electrical contacts, such as an electrical wiring device of the type exemplified by an incandescent lampholder or socket, is removably mounted upon a preselected panel by means of a novel clip arrangement. The panel is of the type utilized in a fixture, for example. The clip arrangement includes a resilient clip of predetermined shape formed with at least three bearing surfaces for contacting the panel, and preferably a fourth bearing surface against which a locking tab is biased to prevent rotation and relatively upward movement of the wiring device.

Abstract: A collapsible awning support frame includes an elongated, horizontal thrust bar fastenable by a lower mounting bracket to the vertical wall of a structure and extending outwards therefrom, and an elongated tension bar pivotably fastened to the thrust bar near the outer, free end of the thrust bar and extending upwards and backwards towards an upper mounting bracket. The upper mounting bracket, intended for fastening to the wall of the structure above and in vertical alignment with the thrust bar mounting bracket, has a hook pin extending upward and outward from the base of the bracket, for pivotably engaging a hole in the bottom wall of the tension bar, near the upper end of the tension bar. Upward movement of the tension bar is restricted by contact with a tab that extends downward from a roof section of the bracket which extends outward from the structure wall.

Abstract: A lateral arm awning support system includes a mounting bracket assembly comprised of first and second interfitting and interlocking extruded bracket components one of which embraces and supports a main support tube of the lateral arm awning. The other mounting bracket component includes an arcuate wall which rigidifies the mounting bracket assembly in two orthogonal planes, and further includes a top flat wall which is perpendicular to a flat vertical wall of the first mounting bracket component.

Abstract: An electrical outlet arranged to be positioned in a cut out in a furniture panel or the like. The body of the outlet is fabricated of a resilient, flexible material and has two generally planar, parallel spaced apart surfaces. Each of these surfaces contains a plurality of saw-toothed shaped detents arranged to engage corresponding surfaces about the cutout. In a first direction, the insertion direction, the detents cause the surfaces to deflect to permit insertion but attempted withdrawal causes engagement of the detents with the cut out surfaces to prevent withdrawal. The remaining surfaces of the outlet body are curved to prevent rotation of the outlet and to facilitate deflection and recovery of the outlet body. One or more sets of receptacle terminals with electrical conductors and electrical plugs coupled thereto are molded into the outlet to provide a unitary structure.

Abstract: The latch housing is made from a sheet of metal cut and bent to form a back wall and top and bottom and side walls which extend forwardly therefrom. The side walls diverge from each other so that the forward edges of the side walls are spaced apart a distance greater than the width of the opening in the door. The side walls are movable toward one another between the top and bottom walls to enable insertion of the housing into the opening. When mounted, the side walls extend between the top and bottom walls with their bottom edges overlying the upper surface of the bottom wall to conceal from view the space between the side walls and the bottom wall.

Abstract: A mechanism for mounting a control device on an implement shield defining a shield plane, the control device having a body formed with slots, the mechanism comprising: the shield having a guide with guidance projections slidably interengageable with the slots on the body of the control device, the guidance projections and slots being connectable to one another by relative movement parallel to the shield plane; the shield having at least one positioning stop forming an abutment against the connecting movement; and, the shield having at least one stop spring for resiliently urging the body against the at least one positioning stop after the connecting movement, whereby the control device is securely positioned on the shield. When the control device is to be mounted in a cutout in the shield, the guidance projections, the at least one positioning stop and the at least one stop spring are shaped from material of the shield bounding the cutout.

Abstract: An apparatus is secured in an opening in a mounting wall by clamping surfaces of the mounting wall adjoining the opening between a flange on the apparatus and a shoulder on the spring. A bolt is passed through the flange and screwed into the spring shoulder to make clamping force independent of the thickness of the mounting wall.

Abstract: A retainer for an automobile radio receiver consists of a unitary spring clip member having an inclined abutting surface for mounting engagement with the automobile instrument panel and a release and locking portion for cooperation with a hand tool to release spring load and lockingly engage the tool for removal of the receiver.

Abstract: A system for facilitating attachment of a loudspeaker grille to an adjacent structure. The invention includes a fastener with a square head which is shaped to be inserted within a head-receiving portion formed in the grille. The fastener is gripped on one pair of opposite sides between a pair of parallel, longitudinal guides. The other sides of the fastener are captured between an abutment and a depressable latch which is sufficiently flexible to permit insertion of the head thereover into the head-receiving portion.

Abstract: A latch for placing within an aperture, the latch having oppositely disposed lips to fit within the aperture; one lip including a leaf spring. The spring is flexed by inserting a rod in an orifice at the extremity of the latch for inserting or removing the latch from the aperture.

Abstract: A speaker and grille assembly clip mounting for use in installing the assembly into a vehicle panel opening. A pair of generally Z-shaped clips are in opposed alignment on the speaker. Each clip has an outwardly diverging shoulder portion deformably joined to an inwardly converging arm portion defining a downwardly extending included obtuse angle spring. Each arm portion terminates in a return bend finger portion which is biased into sliding contact with the speaker magnet. The shoulder and arm portions are resiliently collapsible away from each other to permit ready passage of the clip portions past the panel opening during installation and removal. In position each clip shoulder portion is spring biased into engagement with the opening providing a vibration and shock absorbing speaker and grille snap-in mount.

Abstract: A latch for releasably maintaining a terminal block in an installed position in a panel aperture includes a U-shaped frame, guides on the terminal block at a leading edge thereof integral with the distal ends of the parallel arms of the frame supporting the latter on the terminal block in cantilever spring fashion and defining a lead-in surface in longitudinal profile, and a latch arm supported on the frame between the support arms in cantilever spring fashion including a ramp at its distal end extending from above the frame to inboard of the lead-in surface. As the terminal block approaches the installed position, the guides facilitate final movement thereto while the relationship between the ramp and the lead-in surface insures that the edge of the aperture will engage the latch arm only on the ramp thereby to prevent misengagement between the latch arm and the panel.

Abstract: An apparatus is mounted in a hole in a mounting wall by a shell having tongues which are bent outward from the shell to engage an inner surface of the mounting wall. Each tongue is bent about an axis perpendicular to the mounting wall, and has a supporting portion perpendicular to the mounting wall and a mounting portion extending from the supporting portion and having a free end bearing against the inner mounting wall surface. Pivoting of the tongue about the first axis causes the mounting portion to bend with respect to the supporting portion, bearing against the mounting wall with a force related to the degree of deformation.

Abstract: A flexible moulded plastic panel closure is provided with a plurality of latches and retainers to permit the flexible moulded plastic panel to be attached through an aperture in a rigid wall of a chassis of a video display terminal. The flexible moulded plastic panel is provided with a plurality of resilient retaining fingers and tolerance springs for precisely mounting and holding an axial flow electric fan in a predetermined position to provide circulated air cooling for heat producing electronic components mounted inside of said rigid chassis.