Power Driven Patents (Class 108/20)
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Patent number: 4523070Abstract: A mechanically-driven, low-profile, portable turntable for use in cooking ovens, especially microwave ovens, for rotating food stuffs while cooking. All moving parts, except the power spring used to drive the turntable are formed from low loss plastic and the spring is contained in a microwave reflective case to preclude overheating thereof. The low profile is achieved by providing a unique drive mechanism for the turntable in which the power spring driven gear is made to partially surround and envelop the spring case. Further, the gear train cooperating with the main power spring driven gear and with a speed-controlling governor is effectively "wrapped" about the spring case in a concentric fashion with the individual gears in the gear train being vertically overlapped.Type: GrantFiled: June 16, 1983Date of Patent: June 11, 1985Assignee: Northland Aluminum Products, Inc.Inventors: Jorgen A. Jorgensen, Donald W. Nygren
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Patent number: 4520744Abstract: A sewing machine with an articulated table is provided to facilitate the proper positioning and removal of workpieces. The drive shaft disposed under the table also is articulated to rotate with a portion of the table. An alignment piston is provided to securely align the drive shaft prior to any articulation thereof. An articulation piston is provided to positively move the table through its range of articulation. A locking piston also is provided to lock the table into its nonarticulated condition. The various piston members are preferably controlled by a common unit to ensure coordinated action.Type: GrantFiled: July 12, 1984Date of Patent: June 4, 1985Inventor: Mario Portilla
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Patent number: 4504715Abstract: A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials which motor is mounted in and enclosed by a metal housing and an outer enclosure comprising a cover and base of non-metallic material to prohibit electrical arcing between the motor and the oven walls. The housing is provided with smooth outer surfaces and a minimal sized aperture opening to allow a driving connection between the motor and the enclosure cover.Type: GrantFiled: February 20, 1981Date of Patent: March 12, 1985Assignee: Northland Aluminum Products, Inc.Inventors: Jorgen A. Jorgensen, Donald W. Nygren
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Patent number: 4495871Abstract: In a sliding table 40 slidingly mounted on a guide block 6 with an air bearing therebetween, a moving bracket 38, which is driven by a rotation of a driving screw rod 35 in an axial direction of the latter, is coupled with an elastic coupling means. The elastic coupling means is formed by abutting the moving bracket 38 to the faces of the holding blocks 41 and 42 of the sliding table 40, with a rubber sheet 43 and 44 or the like springy means inbetween.Type: GrantFiled: July 29, 1982Date of Patent: January 29, 1985Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Keiji Nagata, Syuji Ueda, Yoshiyuki Tanigawa
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Patent number: 4471701Abstract: A connecting mechanism of an XY table is provided with a first table movable in one direction, a second table movable relative to the first table in a direction perpendicular thereto and having a guide rail parallel to the direction of movement of the first table, an auxiliary slide movable parallel to the direction of movement of the second table, a first support shaft fixed to the auxiliary slide, a second support shaft rotatably supported by the auxiliary slide and having an eccentric portion, a first antifriction bearing supported by the first support shaft, a second antifriction bearing supported by the eccentric portion of the second support shaft, and biasing means for biasing the second support shaft in a rotational direction. The guide rail is sandwiched between the first antifriction bearing and the second antifriction bearing biased in the direction of movement of the second table by the biasing means.Type: GrantFiled: September 10, 1982Date of Patent: September 18, 1984Assignee: Nippon Seiko K.K.Inventor: Kenkichi Yamashita
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Patent number: 4462579Abstract: A tilting table for machining works is of the worm and worm wheel type incorporating a hydraulic servomechanism. A displacement of a stylus operating lever effected by the drive worm shaft moves the servocontrol valve out of its neutral position, thereby causing a tilting motion of the table in a desired direction via a hydraulic power unit of the mechanism. Due to a linkage connection between the table and the lever, the movement of the table always follows the lever so as to compensate the initial displacement, resulting in light and accurate positioning of the inclined table.Type: GrantFiled: March 25, 1982Date of Patent: July 31, 1984Assignee: Tsudakoma Kogyo Kabushiki KaishaInventor: Eishin Satake
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Patent number: 4456805Abstract: A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials which motor is mounted in and enclosed by a metal housing and an outer enclosure comprising a cover and base of non-metallic material to prohibit electrical arcing between the motor and the oven walls. The housing is provided with smooth outer surfaces and a minimal sized aperture opening to allow a driving connection between the motor and the enclosure cover. The motor is a spring motor having an improved centrifugal governor.Type: GrantFiled: February 22, 1982Date of Patent: June 26, 1984Assignee: Northland Aluminum Products, Inc.Inventors: Jorgen A. Jorgensen, Donald W. Nygren
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Patent number: 4453064Abstract: The present invention is directed to a turntable in a combination microwave and electric oven wherein a sheath heater is disposed between the turntable and a bottom wall of the oven cavity. The turntable is made of an enameled metal plate to ensure stable, or, uniform cooking in both of the microwave cooking mode and electric cooking mode. In a preferred form, openings are formed in the enameled metal turntable to stir the microwave energy during the microwave cooking mode.Type: GrantFiled: August 7, 1979Date of Patent: June 5, 1984Assignee: Sharp Kabushiki KaishaInventors: Munemitsu Toyoda, Koichiro Adachi
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Patent number: 4440096Abstract: An adjustable, split top table for accommodating word processing equipment and the like comprises a base support, a main frame connected to the base support and two independently movable table tops (front and rear) adjustably secured to the main frame. A first lead screw is mounted between the main frame and the front table top so as to slope forward at an acute angle to the vertical. A second lead screw is mounted between the main frame and a front section of the rear table top and parallel to the first lead screw. A third lead screw is pivotally mounted between the main frame and a middle section of the rear table top. Drive means are coupled to the lead screws to independently raise and lower the first table top, raise and lower the rear table top and tilt the rear table top.Type: GrantFiled: December 15, 1981Date of Patent: April 3, 1984Assignee: Haskell of Pittsburgh, Inc.Inventors: Thomas E. Rice, Peter T. Young
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Patent number: 4434343Abstract: A two level turntable adapted for use in a microwave oven. The top level platform which may include a roasting rack is removably supported above the bottom level by a plurality of columns. The bottom level platform has a shaft that extends downwardly through an aperture in a microwave shielding enclosure to a motor. The motor components consisting of a coil spring and a braking mechanism are mounted in substantially the same horizontal plane to provide a relatively low vertical profile. Although the low profile is important when the bottom level platform is used by itself, it is even more important when the top level platform is mounted on top. The shielding enclosure which includes a pan shaped bottom has a downwardly bent lip from the lid to provide a low microwave field region adjacent to the connection of the pan and lid.Type: GrantFiled: January 15, 1982Date of Patent: February 28, 1984Assignee: Raytheon CompanyInventors: Robert F. Bowen, Thomas J. Martel
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Patent number: 4423686Abstract: A table apparatus provided with a stacked array of upper and lower slides which are driven independently of each other, in which at least one slide surface of the lower slide is a slide guide shaft which is reciprocatively rotatable and which has a non-circular cross-section, and in which there are provided a rotation transmission mechanism disposed on the table of the lower slide and engaging with the slide guide shaft, said transmission mechanism being slidable axially of the slide guide shaft and rotatable along with said slide guide shaft, and an upper slide drive mechanism for sliding the upper slide in response to the rotation of said rotation transmission mechanism.Type: GrantFiled: December 23, 1981Date of Patent: January 3, 1984Assignee: Citizen Watch Company LimitedInventors: Katumi Ueno, Genichi Nishizaki
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Patent number: 4372222Abstract: A precision drive assembly for the table (b 10) of a machine tool incorporates a screw (12) and floating ball nut (14). The nut is supported by a pair of rods (18,20) which, in turn, are connected to a bracket (26) mounted on the table. The nut is prevented from rotating about its axis by a torque arm (38) extending from the side of the nut and anchored to a bracket (52) attached to the table. Because of this arrangement the nut may move sideways or vertically without substantially altering its linear position.Type: GrantFiled: October 6, 1980Date of Patent: February 8, 1983Assignee: Colt Industries Operating Corp.Inventor: Larry E. Tice
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Patent number: 4372223Abstract: A moving table assembly has a base, a table supported by the base for movement in one direction, a feed screw having its axis parallel to the direction of movement of the table, a nut threadably engaged with the feed screw, and a connecting mechanism for connecting the table and the nut, the connecting mechanism comprising a first connecting portion for transmitting the axial displacement of the nut to the table and a second connecting portion for preventing the nut from rotating relative to the axis of the feed screw, the first connecting portion being provided with a guide member having a pair of guide surfaces provided on one of the table and the nut in orthogonal relationship with the axis of the feed screw, two support shafts corresponding to the guide surfaces respectively and secured to the other of the table and the nut, and two arms rockably provided on the support shafts respectively and having at the opposite ends thereof rotatable rollers engaging the guide surfaces, the rollers being pressed agaiType: GrantFiled: December 15, 1980Date of Patent: February 8, 1983Assignee: Nippon Seiko Kabushiki KaishaInventor: Nobuo Iwatani
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Patent number: 4365561Abstract: The invention relates to a computer terminal station constituted by an input device and by an output device, both devices being separate one from the other.According to the invention, the station comprises a support for the device 2 constituted by a column mounted for sliding along its axis in a stand, and for rotation about its axis with respect to said stand, the top part of the said column being provided with a console mounted to pivot about an inclinable axis for the output device whereas between the column and the stand are provided means for their axial immobilization in relative rotation and whereas between the column and the console are provided means for adjusting the inclination of the console.Type: GrantFiled: October 11, 1979Date of Patent: December 28, 1982Assignee: Compagnie du RoneoInventors: Pierre Tellier, Jean-Pierre Demaille, Jean Doillon
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Patent number: 4337670Abstract: A support structure (10), preferably a rotatable bed, pivotable between a generally horizontal use position and a generally vertical storage position is disclosed. A counterbalancing mechanism (20) which reduces the amount of force needed to rotate the support structure (10) is operatively connected to the support structure (10). A drive arm (70) driven by a motor mechanism (64) in a linear direction is also operatively connected to the support structure (10). The drive arm (70) is connected to the support structure (10) through a linkage apparatus. The linkage apparatus has linkage plates (82) pivotably connected to drive arm (70) and connecting plates (92) extending from the support structure (10). A T-shaped rod mechanism (102) is engaged by latch (116), rotatably connected to the linkage plates (82), and extends through a hole in frame member (14) of support structure (10) where a coil spring (124) is received about the rod mechanism (102).Type: GrantFiled: October 2, 1979Date of Patent: July 6, 1982Assignee: Sico IncorporatedInventor: Ronald R. Carlson
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Patent number: 4330696Abstract: Turntable for rotating food being cooked in a microwave oven, including a rotatable platform upon which the food is mounted and a drive motor positioned to the side of the platform. The turntable is made of a material having a low loss tangent at microwave frequencies, and the drive motor is surrounded by a shielding enclosure which reflects microwaves. In one of the disclosed embodiments, the turntable can also be used in conventional ovens.Type: GrantFiled: March 18, 1980Date of Patent: May 18, 1982Assignee: Plastics, Inc.Inventors: James F. Pomeroy, Albert E. Colato, Allen M. Danley, John E. Gerling
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Patent number: 4258630Abstract: A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials which motor is mounted in and enclosed by a metal housing and an outer enclosure comprising a cover and base of non-metallic material to prohibit electrical arcing between the motor and the oven walls. The housing is provided with smooth outer surfaces and a minimal sized aperture opening to allow a driving connection between the motor and the enclosure cover.Type: GrantFiled: July 25, 1978Date of Patent: March 31, 1981Assignee: Northland Aluminum Products, Inc.Inventors: Jorgen A. Jorgensen, Donald W. Nygren
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Patent number: 4254319Abstract: In a preferred embodiment of the invention, a totally non-metallic and portable turntable and driving mechanism thereof, insertable into microwave oven space the same as any other item would be placed into the oven space, having a plastic coil spring as the driving mechanism thereof, and having an optionally utilizable detachably mountable stationary stiring arm which stirs food cooking within a vessel being revolved on the revolting turntable.Type: GrantFiled: June 25, 1979Date of Patent: March 3, 1981Inventors: Bruce Beh, Patricia M. Beh
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Patent number: 4242968Abstract: The specification describes a stepping advancing device more particularly r tables for receiving components during a stage of manufacture. The device comprises a crank drive adapted to reciprocate through 180.degree. and attached to the table. A pitman of the crank drive is pivotally connected at its free end remote from the crank shaft with an anchoring or fixing element guided for movement in the direction of movement of the table. This element is clamped to and freed from its guide at the respective end of movement of the crank drive. Furthermore there is a second fixing element, directly fixed to the table and which at the end of travel of the crank drive is detached from and clamped to a further guide, running in the direction of travel of the table, so as to perform an opposite movement to the first-mentioned fixing element.Type: GrantFiled: October 12, 1977Date of Patent: January 6, 1981Assignee: Dorst-Keramikmaschinen-Bau Otto Dorst und Dipl.-Ing. Walter SchlegelInventors: Hubert Schaidl, Josef Leingartner
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Patent number: 4239009Abstract: A turntable is provided for a microwave oven for rotating foodstuffs placed thereon and effecting uniform heating of the foodstuffs. The turntable includes a base, a rotatable table for receiving foodstuffs, and drive means mounted on the base for rotatably driving the table. The base, table, and drive means are incorporated in a portable, freestanding structure which is adapted for placement and removal from a microwave oven.Type: GrantFiled: August 29, 1979Date of Patent: December 16, 1980Assignee: Plastics, Inc.Inventor: Emmett M. Cunningham
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Patent number: 4237796Abstract: This invention is a revolving examination table apparatus to be used by, for example, optometrists during eye examination to place a desired instrument between the patient and the doctor. More particularly, the table apparatus includes (1) a main, circular support base assembly; (2) a revolving table top assembly rotatably mounted on the support base assembly; and (3) an electrical control and drive assembly operable to control rotation of the revolving table top assembly. A central portion of the support base assembly and the revolving table top assembly is cut out to receive a chair and person (optometrist) therein while the patient sits opposite therefrom with the table apparatus therebetween.Type: GrantFiled: September 25, 1978Date of Patent: December 9, 1980Assignee: Ro-Ta Development CompanyInventors: Michael D. Gordon, Hollis D. Baker
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Patent number: 4226191Abstract: A remotely controlled tri-level roller platform assembly including a base portion, an intermediate portion and a top support portion. The intermediate portion is reciprocally operable in a first linear plane, atop and independently of the base member, by means of a first reversible electric motor, with the top support portion disposed thereatop for movement therewith. The top support portion is reciprocally operable in a second linear plane, independent of the intermediate portion, at right angles to the first plane, by means of a second reversible electric motor. Remote control electric switches are provided for the first and second motors whereby the motors may be selectively operated for universal planar positioning of any desired point within a predetermined area of the top surface of the top support portion relative to the lens of a single camera in a visual aid system, including a TV monitor.Type: GrantFiled: February 26, 1979Date of Patent: October 7, 1980Assignee: University of MiamiInventor: Guillermo A. Espana
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Patent number: 4216727Abstract: A turntable is provided for a microwave oven for rotating foodstuffs placed thereon and effecting uniform heating of the foodstuffs. The turntable includes a base, a rotatable table for receiving foodstuffs, and drive means mounted on the base for rotatably driving the table. The base, table, and drive means are incorporated in a portable, freestanding structure which is adapted for placement and removal from a microwave oven.Type: GrantFiled: May 22, 1978Date of Patent: August 12, 1980Assignee: Plastics, Inc.Inventor: Emmett M. Cunningham
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Patent number: 4213401Abstract: A support arrangement for a workpiece table of a gear testing machine which is mounted at a machine frame by means of an antifriction bearing arrangement to be rotatable about a vertical axis. Between the machine frame and the workpiece table there are arranged, coaxial with the antifrication bearing arrangemement, two support rings which can be rotated relative to one another between a rest position and a support position and vice versa. These support rings engage with one another by means of a number of pairs of complementary inclined surfaces which ascend opposite to the direction of rotation from the support position to the rest position and can be moved, by relative rotation, out of the rest position where they enable the workpiece table to rest upon the antifriction bearing arrangement, into the support position where they relieve the antifriction bearing arrangement from the load of the workpiece table.Type: GrantFiled: November 6, 1978Date of Patent: July 22, 1980Assignee: Maag Zahnrader & Maschinen AktiengesellschaftInventor: Oskar Maag
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Patent number: 4140128Abstract: A sun tanning table adapted to support the body of the user for sun tanning purposes, including a base adapted to be supported on the ground, and a substantially flat table top mounted on the base for supporting the body of the user in a reclining position for sun tanning purposes. A device is provided for mounting rotatably the table top on the base to enable the table top to rotate continuously through 360 degrees relative to the base. A motor rotates the table top about its vertical axis relative to the base to enable the user to attain a uniform sun tan.Type: GrantFiled: July 14, 1977Date of Patent: February 20, 1979Inventor: Joe Van Der Schaaf
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Patent number: 4114541Abstract: A rotating cafeteria type food service counter that includes a generally circular counter top supported on top an immobile framework by idler rollers mounted to the framework. The drive shaft includes upper and lower sections, the upper section being fixed to the underside of the counter top in axial fashion, and the lower section being carried in bearings mounted on the counter's framework. A drive motor assembly is connected with the drive shaft's lower section. A universal joint connects the drive shaft's upper and lower sections. The use of the universal joint permits the counter top to tilt or flex slightly relative to its rotational axis if required to maintain supportive contact with the idler rollers for minimizing vibration of the counter top during rotation.Type: GrantFiled: June 23, 1977Date of Patent: September 19, 1978Assignee: B/W Metals Company, Inc.Inventor: Elmer R. Weddendorf
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Patent number: 4073240Abstract: A portable animal hospital table comprising a plastic bed surface disposed on an upper frame, a radiation shielding layer positioned below said plastic bed surface and carried by said upper frame, a base frame supported on rolling means, pivotally mounted linkage means operatively connecting said upper frame and said base frame, a pressure cylinder and piston mounted on said base frame and pivotally connected to said linkage means, and means for actuating said pressure cylinder and piston.Type: GrantFiled: November 2, 1976Date of Patent: February 14, 1978Inventor: Howard G. Fly
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Patent number: 4070973Abstract: A mechanized display for articles, such as cigarette packages, includes rotating platforms upon which the packages rest. The rotating platforms are supported in openings through a plastic housing by drive shaft means, which is driven with a battery powered electric motor. The battery powered electric motor is retained in the bottom of the plastic housing, so that the housing can either sit stably on a flat surface or be suspended from its top.Type: GrantFiled: May 19, 1976Date of Patent: January 31, 1978Inventor: Jerome Morgan
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Patent number: 4036151Abstract: In a type of the microwave cooking apparatus provided with a turntable rotating foodstuffs within the oven cavity to effect uniform heating, the turntable is provided to freely couple with or separate from a power transmission system including a power source. In particular, the turntable is utilized as a foodstuff shelf within the oven cavity when the it is associated with the power transmission system and also is utilized as a cooking tray when it is removed from the power transmission system and desposed directly on a dining table.Type: GrantFiled: June 26, 1975Date of Patent: July 19, 1977Assignee: Sharp Kabushiki KaishaInventor: Yasuo Shin
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Patent number: 3944204Abstract: A radiological table includes a platform for supporting a patient. The table is equipped with a single supporting mechanism for effecting the desired different translational movements in the transverse direction and the vertical direction, and its rotation and about axes parallel to its longitudinal axis. The platform is suspended at each of its ends by a mechanism which includes two concentric cranks, each journalled at one of their respective extremities to a pivot integral with a carriage or slide block gliding in a slide fixed transversely at the end of the platform. The transverse position of each of the carriages in the slide is independently controlled by a pinion secured to a hollow shaft rotatably mounted on said pivot and engaging a chain whose two ends are fixedly secured to the opposite extremities of the slide.Type: GrantFiled: May 24, 1974Date of Patent: March 16, 1976Assignee: C.G.R. Generay S.p.A.Inventor: Jean Cesar