Abstract: A seal (35) for a shielding enclosure (20) having a hinged door assembly (27), comprising a non-punctured flexible interior door skin (39) having an outer face (53) mating with a pair of spaced metal bands (74, 75) secured to an edge 91 of a panel 24 which forms the enclosure (20). Columns (79) of magnetic material mount on the exterior faces of such bands (74, 75) and an insulated electromagnetic coil (76) is contained within a cavity formed by the bands' spacing. Energization of coil (76) seals together skin (53) and bands (74, 75). The coil's wiring (84) passes through a sealing conduit (85) in panel (24) to a housing (87) for an electronic control unit inside enclosure (20) that filters out r-f waves traveling through conduit (85). Ingress and egress hand-actuated mechanisms (51, 52) do not interfere with the effected compressible seal, by reason of a special hinge leaf construction.

Abstract: A knife (20) having its member (21) comprising blade (22) and tang (23) locked to its side rails (24, 25) whichever way blade (22) or tang (23) seat in the knife (20). Side rails (24, 25) include opposing or non-corresponding edges (43, 44) which includes bayonet slots (41, 42) respectively. One pin (55) on blade (22) cooperatively engages bayonet slot (41) when the blade (22) is disposed in a pocket (40) between the side rails (24, 25), and one pin (54) on tang (23) cooperatively engages bayonet slot (42) when the tang (23) is disposed in pocket (40). Urging means (32) such as rubber bands (34, 35) urge the pins (55, 54) in their corresponding bayonet slots (41, 42) to stay therein and means such as rounds (63, 64) on side rails (24, 25) overcome such urging so that member (21) shifts into a pivoting position to unlock either blade (21) or tang (22) for pivoting either one out of pocket (40).

Abstract: A non-collapsible fish net apparatus (31) with capturing method, comprising an endless net (33) mounted on spaced rigid hoops (37, 38) preventing collapse, a skirt (39) below the lower hoop (38) foldable on itself, apparatus support lines (45) mounted to the upper hoop (37), control lines (51) folding and unfolding the skirt (39), a draw line (62) about the skirt (39), a closure weight (57) attached to the draw line (62), and a line (58) for dropping the weight (57) farther down to close off the skirt (39). Buoys (55) on the control lines (51) provide a signal for actuating the weight (57). Corks (44) on the upper hoop (37) float apparatus (31). A wave netting (70) at the upper hoop (37) prevents fish escape in a wave cascade over apparatus (31). A quick-disconnect assembly (65) on the draw line (62) distal to the closure weight (57) opens the skirt (39) in event of apparatus overload.

Abstract: A liquid content (fertilizer) metering apparatus comprising a sealed container having a pocket for supporting a pliable bag of liquid fertilizer which is metered into a restricted throat of a Venturi tube. Water from a relatively high-pressure line seeks a passageway into the container's pocket to pressurize the bag. With a lower pressure at the restricted throat, the liquid contents flow through a metered orifice or passageway to the throat, thus providing a predetermined mixture of water and contents that subsequently flows in a water flow conduit. Alternative embodiments include lid and bag assemblies as well as cartridge assemblies for the filled pliable bag, which facilitate handling, deposit and removal of the bags vis-a-vis the apparatus. One embodiment includes a valve having different sized metering orifices for the liquid contents.

Abstract: A knife or tool (10) comprising a member (11) with a blade (12) and tool element (14) thereon, pivotable at (40) whereby one or the other, blade (12) or tool element (14), is correspondingly disposed in a sheath (22) while the other is exposed. Scales (16, 17) are mounted to each side (20, 21) of the member (11) and encompassed within its sheath (22), while an urging means (54, 55) or spring mechanisms are mounted between the member (11) at its pivot point (40) and the scales (16, 17).

Abstract: A protector for electrical extension cords which are connected together by their conventional male and female members, the protector preventing unintentional disjoinder. A pair of podlike shells mate along first and second longitudinal edges, hinged on the first, with closure means mounted on the second longitudinal edge. Two pairs of prongs are integrally formed on and extend from the interior wall of one of the shells, each pair located proximate a corresponding one of distal ends of the protector. A hook is formed on each of the prongs. A pair of stretchable bands engage corresponding hooks in each pair of prongs and the cords ' plugs are introduced through them, and are joined together. They are rotated 180.degree. and the shells are closed upon one another, so that the bands twisted and entwined about the plugs urge them together. An aperture is formed in each of the distal ends of the closed protector to accomodate disposition of the cords.

Abstract: A foldable knife (20) having a mechanism (29) whick locks its blade (21) in open position but not in its closed position within a pocket (27) formed in its sheath (22). Mechanism (30) is mounted at a pivot axis for the rotation of sheath (22) to blade (21), and comprises a body (31) eccentrically mounted to an axle (30), the block body (31) being releasably slidable into either an opening (44) formed in the thickness of blade (23) or into a position straddling opening (45) and a cavity (44) formed in handle side (23). When so straddled, the blade is locked in open position. A pin (38) mounted on axle (30) is depressed against the biasing of a spring (39) mounted to the other side of block body (31), to push it from its straddling position, so that it slides into the thickness of blade (21), whereby sheath (22) of knife (20) is rotatable about blade (21) to place the latter in its pocket (27).

Abstract: A cage for protecting computer equipment and the like, comprising a multiple number of spaced platforms among which such equipment can be mounted and secured therein without being capable of unauthorized removal. The platforms are secured together by pairs of rods having case hardened sleeves freely rotated thereabout, a lock mechanism being applied to the top of each of such rods, the unlocking of which provides an assembly and disassembly procedure for the cage. Up-turn lips on the front and rear edges of the lowermost platform, together with pairs of such rods and sleeves in the four corners of the cage, prevent removal in a sliding manner of any equipment mounted in the space between the platforms.

Abstract: A tank drain apparatus comprising an annular seal member (56) mounted on a tube (55) in turn mounted on a transparent drain hose (72), a sleeve (67) connecting tube (55) and hose (72) together, a portable ground stand assembly (15), and a unique leverage mechanism (10) operatively connecting sleeve (67) and stand (15) together, so that seal member (56) can be elevated to or lowered from the tank. A blade (61) in seal member (56) engages a drain valve while indicia (80, 83) on sleeve (67) indicates egree of angular rotation for tube (55) as against sleeve (67) to show the valve is opened or closed. Linkage mechanism (10) is adjustable in terms of its position on stand assembly (15). Also, the effort arm (36) of mechanism (10) can be locked in place by a clamping screw (52)-and-rod (53) arrangement mounted below the pivot point on the stand (15) for effort arm (36), to maintain seal member (56) in its elevated position against the tank's drain outlet.

Abstract: An electronic vehicle slow-speed warning system operable automatically to activate the vehicle stop or brake lights if the operator neglects to do so while the vehicle is moving forwardly below a predetermined speed. Both the vehicle backup and stop lights are activated during backward travel at any speed. The warning system is designed for installation in conventional motor vehicles and is constructed entirely of solid state components free of moving parts. The system is selectively operable with either a frequency or optical speed signal sensor and with or without a micro processor.

Abstract: Disclosed is an unusually light-weight, compact, self-contained, self-powered ball thrower adapted to be carried and transported in the trunk of a passenger vehicle. All rotary components are driven by miniature DC motors having permanent magnet stators to maximize lightness without sacrificing performance. The low power requirements of these motors is readily provided by an onboard AC to DC power converter or by a rechargeable storage battery. The housing is power-oscillated to vary lateral ball trajectory and the throwing wheels are tiltable to vary the vertical delivery trajectory. An ample capacity ball hopper collapses compactly when not in use and a special control circuit assures uniform ball velocity during closely spaced successive ball throwing cycles.

Abstract: A Blind Spot Rear-View Mirror Assembly System whereby the blind spot to either rearside of the driven vehicle can be observed by the operator. Such system comprises a secondary mirror assembly swivally mounted to the primary or interiorly mounted rear-view mirror assembly in the vehicle. The system includes a base member mounted to the backwall of the primary assembly, and on which a pivot mechanism is mounted, a rod-and-ball arrangement pivotally mounted to such mechanism, with the ball being universally swiveable in a socket in the secondary mirror assembly. A retainer is mounted on the base member to retain the rod in its adjustable length-wise position to the primary assembly with such retention also preventing the primary assembly from freely pivoting about the pivot mechanism, the rod becoming automatically free of the retainer in the event the body of operator or passenger strikes the secondary assembly in a jarring collesion.

Abstract: A frame-and-clip assembly utilized in the installation of a door frame to a compartment used for storage, baggage or the like, such as found in a recreational vehicle or other shell-like camper housing, although adaptable to compartments in other housings as well. The frame member includes first and second legs extending in opposite directions but joined by a spacer member between them, and a notch located in the corner region of the first leg and the spacer member. The second leg is adapted to engage the outer wall surface of a wall section forming the exterior boundary of the compartment. The clip gripping member comprises generally an upright member mounted on a base and extending over the length of the first leg, a barb on the base for attaching to the notch and a flange and lip for wrapping around the distal end of the first leg. A thinner cross-section in the base, adjacent the gripping member, facilitates the assembly.

Abstract: A Pop-up Table Assembly comprising support sections supporting a table telescopically mounted on a stabilizing shaft secured within a drum mounted in the ground or other sub-structure. The table assembly is releasably positioned in either its elevated mode or down mode (within the drum). U-shaped channel members provide a way to guide the reciprocation of the assembly, and are longitudinally secured to the interior wall of the drum. Means for positively locking the assembly in its down mode is provided. Alternative embodiments of counter-balancing mechanisms are disclosed, whereby raising and lowering of the assembly is facilitated. Drainage passage provide for run-off of water that may accumulate upon the stored assembly or while it is in use. A storage chamber is generated between the table assembly elements and the drum, for introduction of furniture or the like to be stored when the assembly is not in elevated mode or used.

Abstract: An autoclavable laser beam manipulator, made of non-corrosive materials forming its elements which in turn contribute to a novel construction for this instrument that is used with endoscopes of all kinds. Aircraft grade aluminum forms elements such as housing and piston. Laser grade uncoated molybdenum forms the mirrored element mounted on the piston and disposed within a chamber for the housing. Glass-filled DELRON material forms a member which contributes to the adjustment of location and position of the mirrored element to change the direction of laser beam egress from the device, thus controlling such direction.

Abstract: A ski gripping apparatus into which a pair of skis is thrust, after which the weight of the skis forces its gripping members to grip the skis to retain them in the device. The device comprises a pair of circular members eccentrically mounted on a support board which slips into an envelope of a backing member that is bolted to a wall. As a pair of skis is manually thrust into a channel between the circular members, these member eccentrically rotate about their corresponding shafts to widen the channel for disposition of the skis. Once the skis are disposed in such channel and the hands taken therefrom, spring biasing means in the members and support board cause them to eccentrically rotate back against the skis to grip them. Means limiting the eccentric motion of each of such members is provided in such members and support board, as well as pegs for ski-pole straps, which pegs also lock the support board to the backing member.