Abstract: A cleaner for air distributing duct systems of buildings has a motor driven fan for developing a vacuum for the suction of contaminants and air from the interior of the ducts and for forcing the obtained contaminated air stream under positive pressure, relative to the ambient, through multiple stages of filtration. The filtered air is discharged locally within the building. Measurement and display of the vacuum and prefilter air pressures indicate to an attendant the status of the cleaner operation and the condition of the air filters. A viewing window allows observation of the contaminated air stream and the prefilter. A pneumatically driven agitator of multiple whips is introduced into the duct system to dislodge adhering contaminants from the interior walls of the ducts. The vertical stacking of modular subunits gives access for servicing each stage of filters and provides roll-about portability of the cleaner.

Abstract: A battery powered signaling device for the rescue of overboard swimmers is arranged in an elongated container in which reciprocal sliding batteries are used as ballast for the erection of the signaling elements above the water line; and further, upon deployed erection gravity supplemented by minor force of a conducting compressible spring that is always in contact with the uppermost positive battery terminal automatically forces the batteries downward to close an electric circuit by making contact between the negative casing of the bottommost battery and conductors leading to activate the signaling subsystem which is a lighting source in a preferred embodiment.

Abstract: A portable sales promotion apparatus for electronic systems comprises electronic control modules and electronic output devices that are transported from the retailer's supply storeroom to the outside site of the customer's parked mobile vehicle where they are placed in the passenger area of the: vehicle for demonstrations of system performance, for experimental determination of any modifications required of the vehicle for installation of the system, and for the subjective evaluation of the customer or occupant of the vehicle prior to execution of a contract for purchase of a system to be installed. The demonstration vehicle, operable by the salesperson, is a roll-about cabinet that houses supporting electronic modules of the systems being demonstrated, an independent power supply, and control accessories subject to operation by the salesperson for conductiong the demonstrations.

Abstract: A battery powered pocket flashlight has a noncorrosive and electrically nonconductive case containing a restrictive aperture for the projection of light from the lamp source and a resilient color filter attached externally upon the end of the case by integral stub axles extending inward into the case for an axis of rotation intersecting perpendicular to the longitudinal axis of the flashlight for operation by the user in the selection of unfiltered light of the lamp source or a light at a color of the visible spectrum of colors. The filter is secured to the case by resilience of the filter material and by its shape in the form of an acute sector of a sphere. The electrical subsystem is completely removable from the case for servicing.

Abstract: A battery powered pocket flashlight has a noncorrosive and electrically nonconductive case containing a restrictive aperture for the projection of light from the lamp source and a resilient color filter attached externally upon the end of the case by integral stub axles extending inward into the case for an axis of rotation intersecting perpendicular to the longitudinal axis of the flashlight for operation by the user in the selection of unfiltered light of the lamp source or a light at a color of the visible spectrum of colors. The filter is secured to the case by resilience of the filter material and by its shape in the form of an acute sector of a sphere. The electrical sub-system is completely removable from the case for servicing.

Abstract: Lighting devices for portable and fixed applications use two or more light sources having differing spectral colors and electrical circuit parameters to shape spectral energy distributions of beams of illumination for projection upon external objects and surfaces so as to enhance an observer's perception and discrimination of information displayed thereon, while reducing the radiation of inefficient energies at undesired color spectra. Electrical parameters of the differing light sources are used in sensitive circuits to monitor the condition of battery power and to automatically extend the range of effective illumination produced as the applied power degrades.

Abstract: A synthesizer for covert operations under blackout conditions of a light that has shaped energy distributions in the visible wavelengths for visual discrimination of multiple colors upon objects in the user's view and comparative energy suppression in the infrared and certain selected visible wavelengths for reducing the likelihood of detection by external hostile forces having night image intensifiers and for preventing the saturation failure of the user's own image intensifier or those of nearby friendly forces plus apparatus for proportional dimming of the emitted light for observers using the naked eye and observers using image intensifiers.

Abstract: A post driver has a combination of hydraulically operable orthogonal and angular mechanical carriages giving five degrees of motion of the driving hammer for the setting of posts in various soils and terrain slopes. Adjustment of the carriages allows accurate location of posts in a fence line that is offset from the line of travel of the supporting tractor. The structure of the apparatus provides distributed weight to both sides of the tractor to assure its stability and safety for operations over variable terrain slopes. A post sleeve and holding bar contain the posts for hands-off driving and also provide means for overcoming post misalignment due to variable density and stony soils. A damping device is added to the impact hammer mechanisms.

Abstract: A gun rest and sports equipment holder for use on railings of a tree stand, fence, porch deck, or the like includes a portable bracket with attaching clamp, a cradle for a gun rest rest and an optional adaptor for holding spotting telescopes and cameras is adjustable for various viewing heights and azimuth angles by the attending hunter or sportsman and serves to stabilize the aiming of long barrel firearms, spotting scopes, or cameras.

Abstract: A method and apparatus has two stages of acceleration establishing levels of kinetic energy in paired bodies contributing to a total system mass that is to be accelerated in a given time profile. A first stage of acceleration places the paired bodies in helical trajectories about a toroidal space. The second stage of acceleration has mutual cross coupling between the paired masses for the reflection of reaction forces resulting from the independently, but simultaneously, applied forces for enhancement of the acceleration and for mutual suppression of recoil within the apparatus.

Abstract: A lighting device for a room environment, in a form of a table, ceiling or swag unitary fixture, provides primary illumination for general living and working activities within the space of a room, subject to the on-off control of persons therein; flashing illumination occurring at repetition rates designated for alerting persons, including individuals having impaired hearing abilities, to specific fire, burglar or other alarm conditions, responsive to local or supervised control sensors; and supplemental signaling illumination for communicating instructional information.

Abstract: A flashing visual alarm system for buildings and institutions, having occupants including persons having impaired hearing abilities, is provided with on-site continuous monitoring devices and provisions for periodic operational tests of the strobe or incandescent lamp assembly in each room by an inspector, plus a centralized supervisor's station for the entire building complex where the operating status of each alarm lamp is continually displayed for the maintenance of a reliable and fully operational emergency warning system.

Abstract: A container is for elongated playing devices and associated game items. It provides protection during storage, handling, and shipping by freight carriers against damage and it offers resistance to theft. Principal parts of the container are made of a plastic material. Its cavity is formed in one or more standardized tubular extrusions to which molded end caps are affixed. Accessories provide for hand and shoulder carrying and lockable hardware secures the cavity. Access to the container cavity is by removal of lockable end caps and in certain embodiments by separation at the unions between two or more tubular sections. The manufacture of the container is adaptable to the requirements of a multiplicity of sports and games.

Abstract: This invention, in the preferred embodiment, relates to battery powered hand held lamps, commonly known as flashlights, or when in compact form as pen or pocket lights. More specifically, the invention relates to quasi-blackout applications and uses that require fast visual recovery in darkness and minimum personal exposure of the operator of the device.

Abstract: A structural unit comprises a rectangular base and floor with vertical walls attached to form an enclosure, and with a roof assembled thereto to form a miniature building, for containing a banking transactional computer, designated an automatic teller machine (ATM), which allows customers to withdraw currency and make deposits. The enclosure is designed for installation on narrow drive-through traffic islands and pedestrian walkways and may be used in shopping malls and retail outlets. The enclosure has interior space for private and secure servicing and maintenance of the ATM by bank and computer maintenance personnel. Through the use of an indexing turntable mechanism the ATM may be moved and rotated within the enclosure in order to present the operating portions and electronics of the machine for access required by the bank and computer personnel, without exposing them to conditions which encourage interference by outside agents or bystanders.

Abstract: Radio signaling apparatus is for use, primarily, in classrooms at all educational levels, elementary school through graduate school, in which a teacher and a mixed body of hearing and deaf students participate in a lecture and discussion situation with the support of a trained interpreter in sign language. The radio system comprises a voice actuated pulsed omnidirectional radio transmitter, which is worn by the teacher, and a plurality of portable receiving devices, one for each deaf student. The microphone of the transmitter is selected to discriminate against ambient sounds and background voices. The omnidirectional receivers detect the pulsed radio transmissions and generate by transducer action a non-audible sensory stimulation to alert each individual deaf student, whereupon each such student should renew his or her observation of the interpreter. In a preferred embodiment the radio apparatus provides a flashing visual signal from each deaf student's receiver.

Abstract: A manually assisted lockout relay circuit is used in a telephone switching facility to disconnect and isolate an offending subscriber's telephone line to prevent it from capturing and holding central exchange equipments that are commonly accessible and needed by a plurality of other subscribers. A central office technician, through use of the master test frame, determines that the offending subscriber has removed the telephone handset from its hook or cradle and has not made an attempt to complete a call. An offending subscriber, for whatever reason, persists for long periods of time, and on repeated occasions, in leaving his handset off hook. In such instances the technician energizes the lockout relay, by application of central office high voltage, to isolate the offending subscriber's line from the system. Replacement of the handset by the offending subscriber resets the circuit for normal operation. Inadvertent lockout in normal operation is prevented by a zener diode in series with the lockout relay.