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| Number | Title | Issue Date |
| 4842911 | Interfacing for heat sinks Withdrawal and dissipation of heat from an electronic solid-state device by an associated heat-sink structure are promoted by a relatively thin broad-area dielectric interfacing composed of dual filled layers of compliant silicone rubber in sandwiching re... | 06/27/1989 |
| 4685987 | Method of preparing interfacings of heat sinks with electrical devices A relatively thin broad-area dielectric interfacing composed of dual filled layers of compliant silicone rubber in sandwiching relation to a porous glass-cloth carrier, one of the layers being pre-vulcanized and the other being subsequently cured and bond... | 08/11/1987 |
| 4136459 | Parallelizing gauge in a wedge error correction head A parallelizing gauge in a wedge error correction head for the parallel adjustment of a substrate plate to the plane of a light exposing mask, with a means being provided for introducing and removing substrate plates and masks into and/or out of the inter... | 01/30/1979 |
| 4119757 | Floral display blocks of urea-formaldehyde foam Hydrophilic floral display foam blocks are prepared from frothed urea-formaldehyde, and wherein the urea-formaldehyde contains an alkyl-aryl sulfonate, and wherein the alkyl-aryl sulfonate has been exposed to an aqueous solution of a quaternary ammonium s... | 10/10/1978 |
| 4101369 | Bottom seal cut-off Thermoplastic web treating apparatus, particularly adapted for the fabrication of flexible bags and comprising, in combination, a web treating station along with means for intermittently advancing webs through the station. The treating station includes th... | 07/18/1978 |
| 4096018 | Laminator assembly A laminator system for the continuous treatment and lamination of a plurality of flexible webs, with the system including the conventional adhesive applicator stations and laminator stations, with a drying chamber being arranged to dry or otherwise condit... | 06/20/1978 |
| 4096084 | Surface cleaning method and machine A method for cleaning surfaces such as floors and pavements that includes incorporating a polyelectrolyte in the cleaning solution and a surface scrubbing machine for carrying out the process. As specifically disclosed, the method comprises applying the c... | 06/20/1978 |
| 4088120 | Solar concentrator-collector A solar heat concentrator-collector comprising, in combination, solar radiation concentrator means and collector means for receiving the concentrated solar energy and providing for conversion of the energy into usable or more readily convertable form. The... | 05/09/1978 |
| 4086005 | Audio-visual programmer A multimedia motion picture and photographic slide projection control apparatus which permits a plurality of projector devices to be controlled from an operator's console. Manually operable switch means, operating through digital control means, develops a... | 04/25/1978 |
| 4084595 | Transcutaneous nerve stimulator Transcutaneous nerve stimulating apparatus wherein a portable, battery-operated variable pulse width, variable pulse rate oscillator is coupled through a variable amplitude current amplifying device to a set of electrodes adapted to be positioned upon the... | 04/18/1978 |
| 4082203 | Apparatus for handling superimposed stacked receptacles Apparatus for separating and delivering individual frustoconical containers from a stacked column of nested frustoconical containers, each container having an upper rim and an outwardly projecting stacking shoulder spaced from the rim, along with a carryi... | 04/04/1978 |
| 4080096 | Fluid pump impeller An axial flow pump structure utilizing an impeller of improved design, constituting essentially a propeller blade delivering forces to the fluid either gaseous or liquid being pumped in both axial and centrifugal modes. The blade is an evolute wherein the... | 03/21/1978 |
| 4076490 | Fireplace system A noncombustible artificial log and method for simulating combustion thereof, wherein the artificial log is provided with fuel retaining recesses disposed at spaced axial locations therealong for receiving a readily combustible supply of fuel therein. The... | 02/28/1978 |
| 4074537 | Dock bracket A dock means for providing an elevated support and walking ramp over the surface of a body of water adjacent to shore which includes an elongated ramp having laterally disposed support stringers with a walking surface secured to the upper edge thereof. Cr... | 02/21/1978 |
| 4071974 | Thermal retaining garden water blanket Thermal energy retaining means for use in covering soil adjacent growing plants and including a water tight elongated tubular sleeve enclosure having support means at opposed ends thereof. The support means consist of planar means or generally inverted "U... | 02/07/1978 |
| 4072605 | Method of obtaining a precipitate of metallic ions from solutions containing low concentrations of metal salts A method and process for removal by precipitation of salts of a variety of metallic elements from aqueous solutions, including for example, copper, cadmium, chromium, zinc, nickel, lead, tin, platinum, rhodium and others with each of the metallic elements... | 02/07/1978 |
| 4067501 | Drive mechanism for agricultural implements An improved manure spreader having a rotary beater or distributor at the rear thereof, and having a false end gate for transporting the material to be spread to the rear of the spreader, the false end gate being in the form of a load pushing wall. The fal... | 01/10/1978 |
| 4050627 | Adjustable heat recovery system for flue stacks Heat exchange means for use in combination with flue means conducting heated gases from a combustion zone and for extraction of thermal energy from the heated gases. A casing means is provided defining an enclosure with a central axis, and having fresh ai... | 09/27/1977 |
| 4047518 | Solar heating cell A system for gathering solar energy which includes a solar cell having an inlet and an outlet for the transmission of a fluid energy transfer medium therethrough. The fluid energy transfer medium is normally translucent, is provided with an energy absorbi... | 09/13/1977 |
| 4048121 | Low temperature metal cleaning composition Metal cleaning formulation for the preparation of low temperature-low foam aqueous metal cleaning and polishing baths. The formulation includes an alkaline builder consisting of sodium metasilicate together with sodium hydroxide, sodium carbonate, or mixt... | 09/13/1977 |
| 4045188 | Fuel additives for internal combustion engines An additive for hydrocarbon motor fuels for internal combustion engines which consists of ditertiarybutyl peroxide contained in a solvent medium. The solvent medium is preferably ditertiarybutyl alcohol along with a lower melting solvent, such as isopropy... | 08/30/1977 |
| 4044770 | Ear curette An ear curette which comprises, in combination, a generally resilient self-supporting flexible gripping shaft with a wire loop secured to the distal end thereof. The gripping shaft is fabricated from a substantially continuous solid shaft, with the distal... | 08/30/1977 |
| 4041953 | Cardiac pacer circuit A battery powered electronic circuit adapted for surgical implantation in the body of a patient suffering from intermittent heart block for providing electrical stimulation of the heart muscle upon detection of failure of normal heart activity. The circui... | 08/16/1977 |
| 4041856 | Baling machine with improved platen drive and guide assembly An improved baling machine for compacting loose waste material, such as paper, cardboard and the like. A pair of hydraulic cylinders, oriented crosswise to one another, when energized, cause a platen to move downward within a cabinet structure to compress... | 08/16/1977 |
| 4037029 | Photoelectrogenerative cell Photoelectrogenerative cell means comprising, in combination, cell means including an anolyte cell and a catholyte cell, with means being provided for the transmission of solar radiation into the anolyte cell. The anolyte cell includes an electroconductor... | 07/19/1977 |
| 4035913 | Device for forming trim patterns in fur The invention concerns a device for trim patterning furs with a group of knife blades, arranged at equal intervals next to each other and aligned parallel to each other, whose cuts run acute-angled to the leather back side of the material surface, with a ... | 07/19/1977 |
| 4035856 | Water ski safety flag A visual marker means for attachment to the floatation gear of a water skier to enable the skier to be more readily detected when down in the water. The marker means includes a staff having a flag member secured to the upper end thereof, and attachment me... | 07/19/1977 |
| 4036200 | Capacitor discharge ignition circuit An emission control circuit for an internal combustion engine having a voltage generating circuit connected to a source of direct current energy at a first potential for generating an output voltage of a substantially higher potential, the voltage generat... | 07/19/1977 |
| 4034878 | Electric hand trucks A hand truck having elongated telescoping frame means for raising and lowering the load bearing flanged bed which is secured to the base portion and extends forwardly of the frame means. A pair of support wheels are mounted on opposite ends of an axle sha... | 07/12/1977 |
| 4033355 | Electrode lead assembly for implantable devices and method of preparing same An implantable electrode lead assembly for coupling an electrical stimulator pulse generator to an internal organ and a method for preparing such an assembly, the electrode lead assembly including a coiled conductor wound in the form of a helix about a ce... | 07/05/1977 |
| 4032307 | Method and apparatus for cleaning filter means A filter assembly for use in dust control apparatus wherein the filter assembly employs filter barrier material suspended between opposed end frame means. In order to remove accumulated solids from the filter, stroking means, such as a cam-cam follower ar... | 06/28/1977 |
| 4032263 | Pump with coaxial inlet and outlet valve arrangement A unitary inlet and outlet valve means for fluid flow control comprising a unitary body in the form of a hollow sleeve having coaxially arranged inlet and outlet valves. The sleeve housing means includes an inlet at one end thereof, and a flow chamber at ... | 06/28/1977 |
| 4026590 | Folding bumper arrangement A retractable rear bumper means for attachment to the rear of self-propelled dump trucks having boxes which overhang the rear axles and extend rearwardly thereof, with the bumper means being coupled to the frame of the box and arranged to fold upwardly up... | 05/31/1977 |
| 4024521 | Alarm indicator circuit using indicator lamps An alarm indicator system which is utilized in combination with electrically energized apparatus, the alarm indicator including a plurality of individual indicator lamps for indicating an open-circuit condition in any one of a plurality of circuits. A mas... | 05/17/1977 |
| 4023333 | Floating sickle drive A drive means and mounting therefor for converting rotational drive motion to linear reciprocatory motion for driving tool means in linear reciprocatory motion relative to frame or cutting bar means. The drive means includes a wobble shaft drive assembly ... | 05/17/1977 |
| 4022184 | Lateral lens arrangement for solar energy conversion devices A solar heat concentrator comprising, in combination, solar radiation concentrator means and absorber means for converting the concentrated solar energy into usable form. The concentrator means is essentially a line focus Fresnel array, and includes a plu... | 05/10/1977 |
| 4022191 | Biopsy needle guard and guide A biopsy specimen gathering system has been developed which includes a biopsy needle having an aspirating chamber operatively coupled thereto. An elongated tubular sleeve forming a sleeve guard is provided, the sleeve guard having a closed base and an ope... | 05/10/1977 |
| 4020029 | Tackifier A normally inert coating composition activatable under heat and pressure to form a tacky film and adapted for application to gripping handles of hand-held instruments and comprising a combination of two or more plastic resinous substances, each of which i... | 04/26/1977 |
| 4016649 | Circular saw guide Guide frame means for portable powered saws and including a retainer means comprising a generally "U" shaped frame member having a pair of opposed lateral legs and a first cross-member extending between said opposed legs. An edge guide is coupled between ... | 04/12/1977 |
| 4014808 | Detergent composition A detergent composition particularly useful in aqueous solutions for cleaning soiled surfaces. The formulation which may be in either dry or concentrate form, includes alkaline builders, wetting agents, and a flocculant, and may in certain instances, incl... | 03/29/1977 |
