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| Number | Title | Issue Date |
| 4095858 | Book case apparatus A plurality of modules that are generally P-shaped and are of the same size and shape which may be arranged in different stacked relationships to form book cases or the like. As to each module, the closed loop of the P is of a generally rectangular box-sh... | 06/20/1978 |
| 4089750 | Water distiller with cone shaped condenser A water distiller arrangement which provides for an efficient distillation process wherein the inlet water supply is controlled as a function of the temperature of the output of the distiller, and inlet water is preheated in an interior chamber surrounded... | 05/16/1978 |
| 4089036 | Capacitive load cell A capacitive type load cell utilizing a support, a diaphragm member mounted with respect to said support for movement relative thereto, said diaphragm having a conductive surface, and a capacitor plate attached to the diaphragm so that upon deflection of ... | 05/09/1978 |
| 4087576 | Greeting card and ornament A greeting card which includes a folding, three-dimensional hanging ornament that can be punched out of panels of the card while the greeting itself can be separated for reference and saving, and the ornament may be hung for decorative purposes. The combi... | 05/02/1978 |
| 4086908 | Perforated heat transfer sheet A highly efficient, low cost, heat transfer sheet providing for transfer of heat from the sheet to a fluid and finding particular use in solar collectors.... | 05/02/1978 |
| 4087693 | Sensors for use in nuclear reactor cores Sensors including radiation detectors and the like for use within the core of nuclear reactors and which are constructed in a manner to provide optimum reliability of the sensor during use.... | 05/02/1978 |
| 4084597 | Fish house A collapsible fish house that includes a base having a floor, interior walls inclined upwardly and outwardly of the floor, a perimetric top flange joined to the interior walls, exterior walls extending downwardly and outwardly of the top flange, and a hor... | 04/18/1978 |
| 4084015 | Cage ornament and card A greeting card which includes an ornament that can be folded into a three-dimensional bird cage, with small paper board birds that protrude partly from the sides, and which card can include a separate panel for containing a greeting that may be separated... | 04/11/1978 |
| 4080821 | Electric circuits An electric circuit includes three matched resistance thermometer sensors and is responsive to changes in rate of heat loss from at least one of them. The sensors are connected in a series-parallel arrangement to form one arm of a bridge circuit. An ampli... | 03/28/1978 |
| 4079573 | Case sealer apparatus Case sealer apparatus for sealing filled cases that have their top flaps extending vertically and that includes flight bars on endless chains for first moving the filled case over frusto conical rolls to slightly open the bottom major flaps and permit the... | 03/21/1978 |
| 4077478 | Down pressure control mechanism for grain drills A down pressure control for use with furrow openers in grain drills which provides a spring load for maintaining down pressure on the furrow opener during normal operating conditions and which can be at relatively high rate to permit minimum tillage, or w... | 03/07/1978 |
| 4075698 | Digital phase measurement system This invention relates to analog-to-digital conversion systems, and makes use of the properties of cyclic variables such as phase angles. In one form of the invention, an analog signal to be converted into a digital value is applied to an input of a phase... | 02/21/1978 |
| 4068723 | Floating beam plow A beam for supporting an earth working tool, such as a moldboard plow, which is made so that it will float vertically over obstacles that do not hook the earth working tool, and which also includes linkage that will trip to provide clearance over obstacle... | 01/17/1978 |
| 4067393 | Method and apparatus for handling and laying strips of sod A sod handling machine similar to fork lift truck which permits the handling of pallets of sod without loss of sod from the pallet, and further includes flotation tires arranged to permit the machine to be used for packing the sod after it has been laid. ... | 01/10/1978 |
| 4065884 | Window drip collector An apparatus for collecting and causing evaporation of water that condenses on the interior surfaces of a window, to inhibit water damage to the window sill and lower portions of the frame. The apparatus includes a member comprising an outer housing that ... | 01/03/1978 |
| 4063453 | Adjustable space frame for testing machine A load frame used for testing purposes which includes means for reacting side loads between upper and lower cross heads of platens of a press or load frame.... | 12/20/1977 |
| 4062489 | Solar-geothermal heat system A heating system that includes a solar collector assembly exterior of a building that is fluidly connected by inlet and return conduits to separate chambers in a heat transfer tank located in the building, a heat pump furnace unit having an evaporation-co... | 12/13/1977 |
| 4060072 | Solar heater apparatus Solar heating apparatus that includes a solar panel having a generally rectangular box type frame that is open at the front, glass panes mounted on the frame to close the front opening and provide a dead air space, a plurality of horizontally elongated, g... | 11/29/1977 |
| 4060175 | Diaphragm tank cover A digester tank assembly for use in digester systems for anaerobic digestion of waste water sludge comprising a tank having a fixed exterior cover, and a diaphragm member mounted in the tank dividing the tank into upper and lower compartments, said diaphr... | 11/29/1977 |
| 4058105 | Snowmobile safety switch system A safety switch system for use on snowmobiles that eliminates the hazards of previous systems by providing series connected normally closed switches, one connected directly into the throttle control lever which the operator must press for increasing engin... | 11/15/1977 |
| 4057250 | Tennis racket construction The present invention relates to the construction of sports rackets, such as those used for tennis and similar games. The racket has weight means which moves transverse to the plane of the racket stringing, mounted adjacent to the bow or head of the racke... | 11/08/1977 |
| 4056883 | Heated roll inductive heater construction A heater construction for inductively heated rotating rolls which have inductive heater coils made up of a large number of turns of wire. The heater wire used for winding the coil has a high temperature insulation, preferably an inorganic material such as... | 11/08/1977 |
| 4056276 | Door lock A door lock device suitable for operation with electrically operated means, which in turn can be actuated by magnetic card, special turn key, or a key punch combination for security purposes. If desired the lock device may be operated with a suitable mech... | 11/01/1977 |
| 4055690 | Star ornament and card A greeting card includes a three dimensional hanging ornament comprising a star-like configuration that is erected in a unique manner after it has been punched out from the card. The card is oriented to provide a greeting message on one panel, which can b... | 10/25/1977 |
| 4054177 | Trip beam linkage A trip beam linkage for moldboard plow or other earth working tools which trips to clear obstacles such as rocks and the like and uses a sturdy, compact and reliable folding tripping linkage which permits reliable, high clearance tripping using tension sp... | 10/18/1977 |
| 4054018 | Bag filling apparatus The present device comprises a bag filling apparatus which will clamp and hold a bag onto an output spout which forces in material such as pulverized or loose fill cellulose fiber used in insulation, and provides means for holding the bag in place, and pr... | 10/18/1977 |
| 4054120 | Blow gun with mouthpiece indentations and projectile therefor prevented by indentations from movement therepast A blow gun and projectile combination for use in connection with targets which provide safety, enjoyment, and fun without being hazardous. The blow guns are accurate with the projectiles used, and the projectiles are extremely lightweight and do not have ... | 10/18/1977 |
| 4051362 | Wall mounted hinged base A wall mounted hinged base providing a strong, attractive and convenient structure for mounting a luminaire to a building wall, thereby saving the cost of a lighting pole and foundation. The base is easily installed and has a hinge axis that may be placed... | 09/27/1977 |
| 4044420 | Pan cleaning apparatus A pan cleaning apparatus for use with bun and roll pans in bakeries which will use a combined air blast and vacuum action to loosen seeds, crumbs or the like as well as other foreign material which may be lodged in a bun pan after use. The device may incl... | 08/30/1977 |
| 4044721 | Fish tank construction A fish tank construction which is made with interior partitions through which fish can swim and which has "rooms" simulated as those normally inhabited by human beings as backdrops to provide a form of simulated house. The construction includes a fish cro... | 08/30/1977 |
| 4041645 | Window control devices Window controls for controlling large window units to permit the windows to be mechanically raised and lowered for ventilation purposes in a reliable, efficient, and low cost manner. The controls include means for automatically locking the window units ag... | 08/16/1977 |
| 4040195 | Page turner apparatus Page turner apparatus that includes a book support having a transverse ledge and a top flange, a slide plate on the support for transverse movement, the slide plate having a plurality of parallel slots for the pages to be turned extended therethrough, and... | 08/09/1977 |
| 4037289 | Scrubber squeegee apparatus Apparatus for maintaining surfaces that includes a powered mobile machine having a frame, a scrubbing tool, a liquid distributor ahead of the scrubbing tool, a clean solution tank for supplying liquid to the liquid distributor, a housing mounting the tool... | 07/26/1977 |
| 4035752 | Energy saving control A device for heating a room or building thermostat by radiant means or a combination of conduction, convection and radiation in such a manner as to cause localized thermal energy in the vicinity of the thermostat. The temperature of the area controlled by... | 07/12/1977 |
| 4034633 | Safety shield construction A safety shield construction for use with wood turning lathes and similar machines which provide a "see through" shield mounted in a perimeter frame which is movable between closed and open positions. Inertia actuated locks prevent the shield from being k... | 07/12/1977 |
| 4033566 | Pneumatic linear spring device A linear spring system using pneumatic cylinders arranged to give a substantially linear force versus displacement curve across a wide range of displacement and which is capable of providing large forces with mechanism.... | 07/05/1977 |
| 4031574 | Timed ventilator for toilets A timed ventilator for toilets which mounts entirely within the toilet tank, and which operates from a battery power source to remove air from the toilet bowl and move the air through a charcoal filter for deodorizing. An external control includes an auto... | 06/28/1977 |
| 4024910 | Rock channel heat storage A heat or cold storage system utilizing a plurality of channels dug directly into the earth and filled with rocks which are used to absorb heat or cold for storage, a part of such storage being the rocks themselves and a (usually much larger) part being t... | 05/24/1977 |
| 4023795 | Cross-country ski exerciser A ski exerciser used for simulating the motions required in cross-country skiing on which a skier can practice and exercise under conditions substantially similar conditions to those encountered during cross-country skiing.... | 05/17/1977 |
| 4022473 | Apparatus for playing matching game A game apparatus for playing matching games involving colored pegs wherein two players, one on each of the sides of the apparatus will select four pegs of color and place them in a particular sequence unknown to his opponent. A game board provided has ape... | 05/10/1977 |
