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| Number | Title | Issue Date |
| 4330098 | Gear driving mechanisms changing the last gear thereof upon each reversal of the direction of the motor member A reversible gear driving mechanism for transmitting the movement of a motor member of the reversible type is disclosed having two last gears mounted on a swinging support adapted to swing from a first position, where the first one of the two last gears i... | 05/18/1982 |
| 4325552 | Manipulative toy A manipulative toy comprising a number of spheres serially attached in a closed loop or open chain, each sphere being attached to the next at a fixed point on its surface by a connector which allows relative rotation of adjacent spheres about a common axi... | 04/20/1982 |
| 4314131 | Method of band welding with weld testing This specification discloses a wire banding method and machine, which comprises a base member, a circular guideway and wire feeding and tensioning means. Wire is fed across the base and past an article to be bound and then around the guideway until the le... | 02/02/1982 |
| 4308743 | Blank deflector A mechanism incorporated in a die forming machine which includes a rotating blade driven in a timed trajectory such that the blade hits a blank, at or about the instant of its discharge from the die, and propels the blank forcibly out of the path of a mov... | 01/05/1982 |
| 4307943 | Close focusing zoom lens A zoom lens having capability of focusing to a magnification of 1:2 through movement of only the front focusing group. The power of the focusing group is chosen in relation to the power of the lens at its long focal length to accomplish close focusing wit... | 12/29/1981 |
| 4307988 | Storage system A storage system for articles comprising a plurality of inclined storage compartments where an unloading member on an elevator removes articles from given compartments and transfers the article to a conveyor from a transfer position on the elevator and th... | 12/29/1981 |
| 4308490 | Device for compensating the gain of a servo-controlled circuit by negative current feedback The invention relates to a device for compensating the gain of a circuit servo-controlling the position of a rotor with the aid of at least one electromagnetic bearing provided with electromagnet windings, from signals delivered by at least one detector d... | 12/29/1981 |
| 4306673 | Tape transport means for cassette tape recorder A cassette tape recorder drive mechanism including a capstan and an associated pinch roller, a first tape guide means causing the tape to be partially wound on the capstan and a second tape guide means adjacent the first guide means mounted on the axis of... | 12/22/1981 |
| 4304466 | Zoom lens An improved optical system for a relatively compact zoom lens of relatively high speed, moderate range, and extending from normal into the telephoto region, the lens being of simple construction and having two lens groups and as few as six elements.... | 12/08/1981 |
| 4304646 | Method for selective removal of copper contaminants from activator solutions containing palladium and tin A method is provided for selective removal of copper contaminants from aqueous activator solutions which also contain palladium and tin. It comprises placement of insoluble electrodes in the aqeuous solution and application of a low voltage, preferably ra... | 12/08/1981 |
| 4303704 | Selective removal of copper or nickel from complexing agents in aqueous solution A method is provided for selectively separating and removing complexed heavy metal ions, preferably copper or nickel, from complexing agents in aqueous solution and removing substantially all heavy metal ions while leaving complexing agent in said solutio... | 12/01/1981 |
| 4303315 | Compact wide angle lens A very compact lens of the retrofocus type, capable of covering a field angle of up to 63°, comprising six elements including a singlet front group of strong negative power, and having extremely good aberrational correction.... | 12/01/1981 |
| 4302246 | Solution and method for selectively stripping alloys containing nickel with gold, phosphorous or chromium from stainless steel and related nickel base alloys Improved solutions are provided for selectively stripping alloys containing nickel with gold, phosphorous or chromium from substrates formed from alloys containing iron with chromium and in some instances nickel, or nickle rich, chromium bearing alloys, s... | 11/24/1981 |
| 4300817 | Projection lens A projection lens for cathode ray tube display comprising from the image end an element of relatively weak optical power a bi-convex element of positive power providing substantially all the positive power of the overall lens and a third group comprising ... | 11/17/1981 |
| 4301483 | Unit for transmitting the movement of a motor to the cassette spool driving gears in a cassette tape recorder A unit for transmitting the movement of a motor to the cassette spool driving gears in an autoreverse cassette tape recorder is disclosed comprising a drive mechanism automatically operating in normal forward and reverse and in fast forward and rewind bot... | 11/17/1981 |
| 4299454 | Wide angle to long focus zoom lens A zoom lens of the type having equivalent focal lengths varying from substantially less than the diagonal of its image frame to an equivalent focal length at least twice the diagonal of the image frame and having a short front vertex distance. The zoom ra... | 11/10/1981 |
| 4298916 | Lighting system with baffle A lighting system wherein a task-oriented light source is supplemented by the provision of a baffle so located in relation to the positions of the source, the task and the observer as to block out or modify, in whole or in part, the light reaching the tas... | 11/03/1981 |
| 4293437 | Process for the treatment and packaging of low or average activity radio-active waste The present invention relates to a preferably continuous process for the treatment of low and average activity radio-active waste, comprising a pretreatment of said waste, a precipitation of radio-active compounds so as to form a stable suspension which m... | 10/06/1981 |
| 4289013 | Crown control for rolling mill Crown control mechanisms for a cluster rolling mill which includes individually actuated hydraulically driven racks for adjusting in a coordinated manner the positions of backing bearing elements in a manner to counteract work-induced deformation of backi... | 09/15/1981 |
| 4286742 | Cup holder A cup holder is disclosed which attaches at the ashtray of an automobile. In one embodiment the cup receiving means of the cup holder is a circular orifice. Some embodiments of the cup holder have removable portions which allow for the shape and size of t... | 09/01/1981 |
| 4287301 | Method and apparatus for streaking agar A method and apparatus for streaking a sample on agar plates where the sample is dispensed from a flexible tube which is oscillated while the plate is rotated. The plates are stored in a refrigerated compartment and selectively presented to a transfer pos... | 09/01/1981 |
| 4285197 | Isothermal chamber and heat engines constructed using said chamber Isothermal chamber comprising deformable walls and acting as a heat exchanger. It is constituted by two walls 3,3a of complementary shape defining between them an enclosure 4 containing a gas, the said walls having a deformable zone 5 and a rigid zone 6 p... | 08/25/1981 |
| 4284404 | Continuous ring baking furnaces of the Hoffmann type An automatic control system for a continuous ring furnace, wherein the chambers and groups of chambers are operated successively in different phases of the baking cycle; the condition of certain chambers being monitored to obtain signals representing actu... | 08/18/1981 |
| 4283932 | Toggle-actuated punch stripper In a forming press, toggle-type punch stripper actuation mechanism for mechanically driving the punch shoe in a direction to strip the workpiece from the punch as a function of the relative movements of the punch and stripper sleeve.... | 08/18/1981 |
| 4280433 | Underwater appendages for vessels A keel assembly or similar fin-like underwater appendage for a boat is provided which is adjustable to adapt its characteristics to the operating conditions of the boat, for example to optimize hull performance of a sailing boat on opposite tacks. The ass... | 07/28/1981 |
| 4278076 | Solar collector of a liquid heat exchange type Arrangement for sealing an opening in a solar collector through which a header passes and for maintaining the integrity of the seal during movement of the header due to expansion and contraction thereof. A generally cylindrical resilient member compressiv... | 07/14/1981 |
| 4274851 | Gas recovery of sulphur hexafluoride A gas recovery method and apparatus for the recovery and storage of a gas from a gas enclosure or circuit particularly for the recovery of sulphur hexafluoride (SF6) from the arc chamber of a high voltage/current circuit breaker. A gas bottle i... | 06/23/1981 |
| 4273414 | Zoom lens A mechanism for a zoom lens having relatively movable lens groups where the aperture defining means moves with one of the lens groups.... | 06/16/1981 |
| 4270516 | Solar energy collector A solar energy collector of the air heat exchange type in which the absorber forms the upper wall of an air duct and a heat exchanger in the duct transfers heat from the absorber to air in the duct, thereby providing increased heated surface area to the a... | 06/02/1981 |
| 4269172 | Solar water-heating apparatus A solar hot-water system having an absorber formed of plastic ducting adapted to be arranged unobtrusively on a roof surface whereby the water is heated by means of direct radiation from the sun and by means of conduction from the roof surface on which th... | 05/26/1981 |
| 4266840 | Circuit holder A circuit holder wherein an integrated circuit module having downwardly projecting straight terminals can be mounted on a base with zero insertion force at the terminals, the contacts in the base being forced into engagement with the circuit terminals by ... | 05/12/1981 |
| 4265016 | Cable splitter A hand tool for slitting the sheath on flat, two to four conductor, plastic clad cables wherein one or more pointed knives project from the end of a handle into a chamber bounded, opposite the knife blades, by a sloping wall, one end of which defines an o... | 05/05/1981 |
| 4263892 | Heat sensing means, particularly for solar water heating apparatus This invention relates to temperature differential sensing means particularly suitable for sensing temperatures at respective opposite sides of a heat shield whereby alignment of the shield with respect to a heat source may be monitored so as to enable th... | 04/28/1981 |
| 4262566 | Device for continuously and rotatably cutting a sheet transversely with respect to its direction of advance The present invention relates to a process and device for continuously and rotatably cutting a sheet transversely with respect to its direction of advance, wherein the device comprises a rotor provided with cutters and mounted to rotate about an axis ecce... | 04/21/1981 |
| 4261029 | Lighting device with rotatable reflector A lighting device with rotating reflector in which the lamp is eccentric so as to obtain an asymmetrical luminous flux. The said device comprises a main reflector 1, a lamp 7 which is eccentric with respect to the reflector 1 and an additional convex-cylindric... | 04/07/1981 |
| 4258980 | Retrofocus lens A retrofocus lens subtending a field angle up to 84° or more characterized by compactness, fast relative aperture, and good aberration correction. These characteristics are obtained by selection of the relative powers of a front negative and a rear posit... | 03/31/1981 |
| 4256381 | Zoom lens A lens of variable equivalent focal length where two lens groups located on either side of an aperture defining means move relative to the aperture defining means, and a lens group of positive power is positioned close to the aperture defining means. The ... | 03/17/1981 |
| 4253575 | Rack for tennis and similar rackets A rack for supporting one or more tennis rackets or the like in a position projecting edgewise outward from a wall, the rack having a resilient pad to engage one edge of the racket head, a base block on which the end of the rack handle may rest, and an L-... | 03/03/1981 |
| 4252558 | Method for producing a platinoid comprising a dispersed phase of a refractory oxide The present invention concerns a method for producing a metal from crude platinum or one of its alloys, comprising very fine particles, in dispersed phase form, of at least one refractory oxide, in the proportion of 0.1 to 0.5% by weight with respect to t... | 02/24/1981 |
| 4249798 | Miniature camera with zoom lens Improvements in an optical system for a compact camera having an improved form of a zoom objective lens arranged substantially enclosed within the housing of the camera which is made compact by a twice folded optical path and a through-the-lens viewing sy... | 02/10/1981 |
