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| Number | Title | Issue Date |
| 4456927 | Video circuitry A video processing circuit separates chrominance and luminance signals and processes the same separately from synchronizing information whereby the video signal may be reformed with a selected video level, selected color saturation, and selected chroma hu... | 06/26/1984 |
| 4445152 | Video detail enhancing circuit A detail enhancing circuit for use with video tape recorders recovers or separates detail from the overall video signal and adds amplified detail back into the video signal. The luminance signal is differentiated and high amplitude transitions are clamped... | 04/24/1984 |
| 4442488 | Instruction cache memory system A memory system includes a high-speed, multi-region instruction cache, each region of which stores a variable number of instructions received from a main data memory said instructions forming part of a program. An instruction is transferred to a region fr... | 04/10/1984 |
| 4428085 | Self-cleaning building construction A self-cleaning building construction comprises apparatus for applying a fine spray or mist of water and/or water and detergent to wall, floor and ceiling surfaces, followed by warm air drying. Floors slope in a direction for removing excess moisture via ... | 01/31/1984 |
| 4412558 | Turbulator A turbulator comprising a strip of metal formed into a generally zig-zag longitudinal extending element for insertion into a fire tube of a furnace which so deflects gases passing through the tube as to break up laminar flow and thus improve heat transfer... | 11/01/1983 |
| 4412405 | Interlocking building structure An arch-shaped building structure is constructed from a multiplicity of relatively small but uniform pieces without the use of metal hardware or fasteners and without the use of conventional tools. Overlapping or offset cross members are disposed between ... | 11/01/1983 |
| 4411219 | Apparatus for protecting the frame surrounding a window or door opening and a window or door within the opening A paint guard for protecting frame windows or doors, includes a rectangular framework of four right annular frame members which are telescopically interconnected so as to permit the framework to expand and contract in height and width. Flanges at the peri... | 10/25/1983 |
| 4409973 | Method and apparatus for corrective osteotomy In high tibial osteotomy a cross-shaped gauge having downwardly-depending side arms is positioned toward the end of the tibia, with the depending arms adjacent the arcuate path of the proposed saw cut. The cross-shaped gauge establishes a first indicia be... | 10/18/1983 |
| 4408842 | Telescopic sight having lens holder tube with half socket pivot mount A telescopic sight apparatus is described having a lens holder tube which is pivotally mounted at one end thereof by means of an improved half socket pivot means for windage and elevation adjustments. The telescopic sight apparatus may be a rifle scope. T... | 10/11/1983 |
| 4408365 | Mats A mat of the kind having a plurality of first strips of rigid material such as aluminium, and a plurality of second strips of flexible material such as rubber, interposed alternately between the first strips, the first and second strips being secured toge... | 10/11/1983 |
| 4407147 | Peripheral key tumbler lock A two-stage tumbler lock wherein there are two sets of discs, one set being actuatable by a key to free the second set for unlocking movement under the influence of the key. The invention also contemplates a lock designed to receive a peripheral key to ca... | 10/04/1983 |
| 4406703 | Composite materials made from plant fibers bonded with portland cement and method of producing same The specification discloses a method of producing composite building materials from a mixture of plant fibers bonded with portland cement. Plant fibers, cement and soluble silicates in certain proportions are mixed and heated under pressure for a short pe... | 09/27/1983 |
| 4402006 | Image enhancer apparatus An image enhancer apparatus includes an aperture correction circuit for receiving an input video signal and producing emphasized edge sharpness information for addition to the input video signal as delayed in a signal delay line. The edge sharpness inform... | 08/30/1983 |
| 4401705 | Plastic molding This invention is directed to a sheet molding and in particular a molding that is used to assist in fastening corrugated fibreglass sheeting to supporting objects. The invention is a pre-fabricated section suitable for use in supporting corrugated sheetin... | 08/30/1983 |
| 4400816 | Controlled stop circuit for furnaces A controlled stop circuitry which frees the operator for carrying out other duties of cycle-interrupt time, by being automatically operable, when once activated, to partially raise the electrodes and to open the transformer switch, but only after the elec... | 08/23/1983 |
| 4400020 | Pressure tank connector A pressure tank connector apparatus is described with a connector fitting having a fitting insert sleeve of steel or other harder metal than the fitting body which is crimped over an outwardly extending flange or lip portion of the tank wall surrounding t... | 08/23/1983 |
| 4399849 | Quality control process The invention provides a quality control process for lumber-cutting operations. It normally includes the following steps: (1) treating, with a normally invisible indicator, a portion of the lumber to be cut; (2) recording the physical properties of the po... | 08/23/1983 |
| 4399805 | Panel insulation apparatus Protective panels are disclosed for insulating walls and other combustible surfaces from a nearby stove or other heating device. Simple, economical shallow U-shaped pieces, one positioned upon the other, create two distinct conduits through which air flow... | 08/23/1983 |
| 4399636 | Thermal insulated doorsill apparatus with insulating spacer fastener A doorsill apparatus for a sliding glass patio door or other exterior door is described including a heat insulating spacer fastener for securing inner and outer sill members of metal against relative movement. The heat insulating spacer fastener is prefer... | 08/23/1983 |
| 4398437 | Saw chain depth gauge grinder An improved saw chain depth gauge grinder longitudinally positions the cutter links of saw chains with their depth gauges in a grinding position for grinding while preventing contact with other portions of the cutter link as they pass through the grinding... | 08/16/1983 |
| 4398383 | Apparatus for packaging product filled sealed bags into cases An apparatus for packaging product-filled sealed bags in cases includes an inclined plate and an extensible pushing plate operable to arrange a predetermined number of bags fed from an infeed conveyor in a row on the inclined plate. The row is supported t... | 08/16/1983 |
| 4397343 | Log scanning in veneer lathe to determine optimum yield axis Apparatus is disclosed for scanning a log with light or other electromagnetic radiation while such log is rotated by the spindles of a veneer lathe to determine its optimum yield axis and for positioning the log with positioning arms to align such optimum... | 08/09/1983 |
| 4396262 | Hand held transparency projector with simple advance mechanism A hand-held transparency projector includes a housing having a recess formed in the housing for carrying a film cartridge, and a projection aperture in one end of the housing through which the images on the film in the cartridge may be projected. The hous... | 08/02/1983 |
| 4395858 | Panel mounting system and method A system for alignably mounting a plurality of panels, each of which has a pair of substantially parallel, facing engagement surfaces on its back side. The system typically includes the following components: (1) a plurality of substantially parallel chann... | 08/02/1983 |
| 4395856 | Post and panel mounting system A post and panel mounting system for assembling office partitions uses a hinge arrangement which enables the panels to be positioned at any desired angle to one another. The hinge includes a pivot member in a pivot bracket which is mounted in a narrow hor... | 08/02/1983 |
| 4395600 | Auditory subliminal message system and method Ambient audio signals from the customer shopping area within a store are sensed and fed to a signal processing circuit that produces a control signal which varies with variations in the amplitude of the sensed audio signals. A control circuit adjusts the ... | 07/26/1983 |
| 4395096 | Variable magnification telescopic sight having reticle centering mount A telescopic sight for a rifle or an optical instrument is described having an improved reticle centering mount apparatus. A reticle centering sleeve is provided around a reticle mounting ring mounted within an outer housing tube containing erector lenses... | 07/26/1983 |
| 4394374 | Thymus gland extracts A process for the manufacture of a new thymus gland extract is disclosed. Comminuted thymus glands are mixed with hot distilled water which dissolves target protein substances. After a period of time, solids and liquid fats are separated from the aqueous ... | 07/19/1983 |
| 4393925 | Stove pipe heat extractor A heat extractor for picking up waste heat from flue gases is disclosed. The extractor attaches to the stove pipe of a furnace or stove. Air is introduced into the extractor in a spiral flow pattern which is reversed after the air is heated. Air flows int... | 07/19/1983 |
| 4393741 | Electronic organ circuit An electronic organ circuit includes a multiplicity of keyers receiving control inputs from plural shift and store registers capable of operating any given keyer at different levels. The inputs for a given keyer are applied on a cyclic basis and for diffe... | 07/19/1983 |
| 4393595 | Tube adjustment gasket and rifle scope employing same An adjustment gasket for resiliently locking a threadedly connected tube against accidental rotation while permitting rotational adjustment of such tube, is described. The adjustment gasket may be clamped between two threadedly interconnected tubes in a r... | 07/19/1983 |
| 4393521 | Disposable garment shield and method of manufacture A disposable garment shield includes a base layer of fusible interfacing superimposed with a moisture barrier layer, a moisture absorbing layer and a porous plastic layer. The shield is formed in a hexagonal configuration facilitating easy production from... | 07/19/1983 |
| 4392658 | Skate blade An elongated skate blade for an ice skate, the blade including first and second acute-angled cutting edges formed longitudinally on opposed sides of the blade for cutting engagement with an ice surface, and a generally downwardly facing longitudinally ext... | 07/12/1983 |
| 4392125 | Multiplex communication system using remote microprocessors A multiplex security system provides two-way data communications between a local panel and multiple microprocessor-based remote panels interconnected over a common data transmission line. A second line provides two-way voice communications between the loc... | 07/05/1983 |
| 4391457 | Combination pocket pad and writing instrument holder A memo or check pad holder is disclosed which is designed to fit into an open shirt pocket and retain not only a memo or check pad but also writing instruments. The holder includes a cover foldable along a flexible hinge into front and back cover sections... | 07/05/1983 |
| 4391401 | Surgical staplers and staple The specification discloses a forming die or ram movable along a guideway or track by a pair of toggle-joint linkages to move from a column of staples a staple having a downwardly bowed central portion into engagement with an anvil, then bend outer portio... | 07/05/1983 |
| 4390284 | Method and apparatus for wetting powder A high kinetic energy water spraying apparatus wets powdered or granular dry material, particularly hard-to-wet polymers, to provide a lump-free solution of a controlled concentration. A volumetric feeder drops the dry material through a fructoconical upp... | 06/28/1983 |
| 4389775 | Belt buckle and knife A knife and belt buckle case in which the knife is releasably secured to the buckle. The knife includes a blade pivoted to a handle by a pivot pin which has an eccentric head. With the knife open, the eccentric head is positioned for insertion through an ... | 06/28/1983 |
| 4389578 | Controlled gate circuit A moisture measuring apparatus includes a tuned circuit, a moisture sensor, coaxial cable means between the sensor and the tuned circuit wherein the tuned circuit tunes the coaxial cable, and a circuit for ascertaining the loading presented by the sensor ... | 06/21/1983 |
| 4383877 | Method of making an annular valve housing for a rotary drum filter A substantially entirely plastic rotary drum filter is made by applying a layer of plastic to the interior surface of a cylindrical mold, removing the mold, and applying at least one additional layer of plastic to the exposed exterior surface of the shell... | 05/17/1983 |
