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| Number | Title | Issue Date |
| 4267153 | Gravity dampened guidance system A crystal growth guidance mechanism for use in crystal growing apparatus. The guidance mechanism, which is disposed between a crystal puller and a crystal forming die comprises a plurality of gravity damped guide rods mounted on ramped supports. The rods ... | 05/12/1981 |
| 4267010 | Guidance mechanism An improved method of growing ribbon-shaped crystalline bodies is disclosed. The method comprises the step of pulling the body from a melt pool through a very narrow gap as the body cools through a range of temperatures at which significant plastic deform... | 05/12/1981 |
| 4266849 | Optical objectives The invention is a new telescopic optical system that comprises a concave primary reflector and a retro-directive reflector for reflecting light from the primary reflector and forming an erect real image at a plane within the system. In the preferred embo... | 05/12/1981 |
| 4267151 | Apparatus for crystal growth control The growth of a crystalline body of a selected material is controlled so that the body has a selected cross-sectional shape. The apparatus is of the type which includes the structure normally employed in known capillary die devices as well as means for ob... | 05/12/1981 |
| 4266124 | Photoelectric object detector system The invention is an improvement over the system disclosed in U.S. Pat. No. 3,805,061 for detecting intrusion of a selected area by an object and for operating or terminating operation of an associated apparatus when such intrusion occurs. It consists of i... | 05/05/1981 |
| 4265223 | Method and apparatus for utilizing solar energy A process and system are provided for economic utilization of solar energy. Solar energy is absorbed and converted to thermal energy by means of at least two systems, operating in different temperature ranges, for circulating a primary fluid heat transfer... | 05/05/1981 |
| 4261126 | Numeric display A segment display wherein each segment is selectively energized to display, respectively, all numerals of the Arabian writing as distinguished from "arabic numbers". The segment display uses only seven or fewer segments for displaying all numbers by emplo... | 04/14/1981 |
| 4256435 | Mounting support blocks for pivotal rotor of wind turbine A new and improved type of rotor blade assembly is disclosed for use in a power-generating, wind-driven turbine. The present invention comprises a plurality of support blocks each mounting a rotor blade and captivated between two rings so as to form a cyl... | 03/17/1981 |
| 4253598 | Fluid powered impact tool An improved power-driven hammer driver tool is provided wherein a pneumatically- or hydraulically-operated piston mounting a cylindrical rod-shaped hammer is designed to impart a vertically-oriented impact to an indexed fastener within the tool. A face pl... | 03/03/1981 |
| 4248645 | Method for reducing residual stresses in crystals A temperature profile controller is provided for cooling a crystal as it is pulled from a melt so that a substantially linear temperature gradient is established and maintained along the length of the crystal as it is cooled, whereby to prevent or reduce ... | 02/03/1981 |
| 4243778 | Thermosetting heat bondable lacquer The thermosetting heat bondable lacquer comprises a solution of a thermosetting mixture of various resins in a solvent or mixture of solvents which boils at a temperature in the range of 50° to 230° C., preferably 130° to 210° C. The thermosetting ... | 01/06/1981 |
| 4242589 | Apparatus for monitoring crystal growth A system and method are disclosed for monitoring the growth of a crystalline-body from a liquid meniscus in a furnace. The system provides an improved human/machine interface so as to reduce operator stress, strain and fatigue while improving the conditio... | 12/30/1980 |
| 4239583 | Method and apparatus for crystal growth control A system for and method of growing a crystalline body of a selected material is described, whereby the body grown is of a selected cross-sectional shape. The system and method are used in accordance with known capillary die techniques and further includes... | 12/16/1980 |
| 4239555 | Encapsulated solar cell array Solar cell array and method for manufacturing same wherein the individual cells of the array are sandwiched and held resiliently captive between and electrically isolated from a transparent protective front cover and a protective rear substrate by an enca... | 12/16/1980 |
| 4236101 | Light control system In an area illuminated by both artificial and natural light sources, a control system is implemented to reduce the energy consumption by proportionately dimming the artificial sources to a level such that the sum of natural plus artificial light is held e... | 11/25/1980 |
| 4234804 | Signal correction for electrical gain control systems The present invention relates to an electrical gain control system which provides a first signal logarithmically related to an input signal, sums a gain control signal with the first signal; and then provides an output signal which is an antilogarithmic f... | 11/18/1980 |
| 4230668 | Process and apparatus for producing halogenated unsaturated hydrocarbons Process and apparatus for producing vinyl chloride monomer characterized by conjoint chlorination and dehydrochlorination reactions carried out in the presence of fluidized solids which provide efficient heat transfer within and between the two reaction z... | 10/28/1980 |
| 4230674 | Crucible-die assemblies for growing crystalline bodies of selected shapes The invention is an improved apparatus for use in a system for growing crystalline bodies from the melt. The apparatus is a novel crucible-die in which the crucible forms an integral part of the die.... | 10/28/1980 |
| 4227762 | Electrical connector assembly with latching bar An improved electrical connector assembly (for transmitting biopotential signals) comprises a main terminal connector associated with a master cable connectable to the signal processing apparatus and at least one plug associated with a single cable connec... | 10/14/1980 |
| 4227637 | Pneumatic fastening tool A pneumatic tool is disclosed for attaching small metal members such as washers and name tags to a workpiece. The tool generally comprises a pneumatic driver apparatus for driving nail-like fasteners and a holder apparatus for holding the metal member pos... | 10/14/1980 |
| 4226553 | Slide gates for water and sewage treatment plants A slide gate mechanism embodying novel seal means for providing a watertight seal between a sliding gate member and its supporting members.... | 10/07/1980 |
| 4226422 | Flying saucer simulation game A novel type of game device is disclosed wherein the device comprises a controllable object adapted for movement relative to a rotating turntable which has a topographically-varying upper surface. The game device is intended to provide amusement and chall... | 10/07/1980 |
| 4225531 | Fluidization promoters The invention is directed to improving the quality of fluidization of fluidized solids and comprises the addition of fluidization promoters in particle form that have a smaller density and particle size than the neat solids. In a preferred embodiment of t... | 09/30/1980 |
| 4220929 | Signal expander An improved signal expansion system and technique is disclosed. The system comprises a detector for sensing an input signal and for producing responsively thereto a D.C. control signal having an amplitude as a function of the input signal, and a gain cont... | 09/02/1980 |
| 4218953 | Self-piercing pop rivet fasteners A new pop rivet assembly is disclosed, wherein said device is capable of forming a rivet hole in a workpiece, inserting a pop rivet into the hole and securing it in place in response to an operator's single blow using a conventional hammer, pneumatic driv... | 08/26/1980 |
| 4214483 | Apparatus for measuring angular speed Apparatus for measuring the angular velocity and speed of a rotating shaft comprises charge storage elements for storing charge. The charge storage elements are capable of being coupled to the rotating shaft so as to be rotatable about a predetermined axi... | 07/29/1980 |
| 4213527 | Chain link conveyors A chain link conveyor comprises modules made of an organic plastic material and pivotably connected to one another. Each module is designed to be extruded as a slab and machined to form a module comprising intermediate sections, reinforcing center section... | 07/22/1980 |
| 4213329 | Method and apparatus for inspecting containers A method and apparatus are provided for inspecting vacuum-packed containers. The invention comprises automatically subjecting each container to be inspected to a predetermined force so as to cause each container to emit a click as a result of relative dis... | 07/22/1980 |
| 4213404 | Solid refuse furnace A new furnace is provided which employs a forced draft to efficiently and cleanly burn a wide variety of fuels such as wood and refuse. The furnace is designed to internally and continuously pyrolyze (gasify) fuel prior to the burning phase which is condu... | 07/22/1980 |
| 4213159 | Pneumatic clamps and thermomagnetic duplication A pneumatic clamp is disclosed for use in thermomagnetic duplication systems. The clamp comprises a nip member having a web-guiding surface with at least one passageway, means for connecting that passageway to a source of pressurized gas, and means for ur... | 07/15/1980 |
| 4204898 | Tape winding and splicing machine A novel type of splice trimmer is disclosed for use in a tape winding machine of the type designed to (1) splice magnetic tape into a leader tape connected between two hubs, and (2) take up the added tape on one of the two hubs. The present invention comp... | 05/27/1980 |
| 4201189 | Curtain assembly An improved curtain assembly which comprises a cellophane sheet including small grains of a material which are absorptive to light and sun energy and reflective to heat provided in the building.... | 05/06/1980 |
| 4198147 | Encoding system An improved three-dimensional camera comprises an objective lens having a focal plane, a graticule positioned adjacent the focal plane, a shutter operable to permit formation of an image of a subject at the combined image plane of the lens and graticule a... | 04/15/1980 |
| 4196833 | Pneumatic tacking tool An improved type of pneumatic tacking tool is disclosed for use in fastening carpet tacking strips and the like to wooden or concrete floors. The tool comprises a modification of the fastener driving tool described in my U.S. Pat. No. 4,040,554 and my U.S... | 04/08/1980 |
| 4193828 | Method of forming carbon composites The ablative response at predetermined locations in a carbon-carbon reinforced composite material are selectively modified by one or more implants of a compatible, non-carbon material disposed at selected sites in the material. The implants of non-carbon ... | 03/18/1980 |
| 4188254 | Vacuum press An improved form of vacuum press is disclosed for use in laminating transparent protective film to photographs and the like and for dry-mounting the same to suitable substrates or backing materials. The press comprises a rigid work support assembly for support... | 02/12/1980 |
| 4184907 | Control of capillary die shaped crystal growth of silicon and germanium crystals A method is disclosed of growing a crystalline body of a selected material so that the body has a selected cross-sectional shape. The method includes the steps normally employed in known capillary die processes and further includes observing at least the ... | 01/22/1980 |
| 4185076 | Apparatus for controlled growth of silicon and germanium crystal ribbons Apparatus is disclosed for controlling the growth of a crystalline body of a selected material so that the body has a selected cross-sectional shape. The apparatus includes the structure normally employed in known capillary die devices and further include... | 01/22/1980 |
| 4182026 | Electric motor manufacture The invention provides a new method of making electric motor stator assemblies of the type comprising a magnetic stator body with a plurality of discrete poles and a coil wound on each pole. Preferably each stator assembly is made by (a) providing a flexi... | 01/08/1980 |
| 4177356 | Signal enhancement system An improved expanding system is described for enhancing transmitted or recorded audio signals previously processed by anyone of several nonlinear amplifying techniques. The system is designed to divide the audio signal received into substantially discrete... | 12/04/1979 |
