Serially Arranged Sets Patents (Class 454/315)
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Patent number: 5873780Abstract: In an air conditioner provided with at least one longitudinal louver rotating in a vertical direction with an almost horizontal rotation axis as the center and with a number of lateral louvers rotating in a lateral direction with a rotation axis line almost perpendicular to the rotation axis line of the above-described longitudinal louver, a cover plate is provided at an upper wall portion of the above-described air outlet so that a specified space is formed between the cover plate and the upper wall portion, and each of the lateral louvers is attached at the cover plate by the medium of a bush with an arm and a connecting plate for connecting the lateral louvers formed at the bush to prevent the reduction of air blowing efficiency, generation of a noise, and condensation in an air outlet.Type: GrantFiled: May 16, 1997Date of Patent: February 23, 1999Assignee: Fujitsu General LimitedInventors: Nobuyuki Mori, Yoshimi Kawai
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Patent number: 5850742Abstract: An air conditioner includes an inlet for receiving room air, a heat exchanger for heating or cooling the air, an outlet for discharging the heated or cooled air back into the room, a fan for circulating the air through the air conditioner, inlet and outlet doors for opening/closing the inlet and outlet, a motor for driving the doors, and a controller for automatically actuating the motor to open the doors when the air conditioner is activated, and close the doors when the air conditioner is deactivated. A control by-pass is provided in a remote controller which is relatively inaccessible to a normal user but which can be actuated by an air conditioner tester or shipper for maintaining the doors open even when the air conditioner is deactivated (e.g., during testing or shipping) to prevent the doors from being damaged.Type: GrantFiled: August 14, 1997Date of Patent: December 22, 1998Assignee: Smasung Electronics Co., Ltd.Inventors: Yong-Woong Bang, Je-Myoung Moon
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Patent number: 5820457Abstract: An air nozzle has an air nozzle body and a lamella arrangement for directing the air flow exiting from the air nozzle. The lamella arrangement includes first lamellas connected to the air nozzle body so as to be pivotable about parallel-extending first pivot axes. A roller is fastened within the air nozzle body so as to be pivotable about a second pivot axis. The roller has second lamellas positioned slantedly to the second pivot axis. The second pivot axis and the first pivot axes extend parallel to one another.Type: GrantFiled: January 3, 1997Date of Patent: October 13, 1998Assignee: Aurora Konrad G. Schulz GmbH & Co.Inventors: Alfred Kern, Wolfgang Knuhl, Roland Gruner
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Patent number: 5810661Abstract: An air conditioner includes an air outlet for discharging temperature-conditioned air. Horizontal and vertical blades extend across the air outlet and are pivotably adjustable for controlling the up/down and right/left directions of air flow, respectively. The blades are pivotable by means of motors. A manually manipulable control panel enables a user to select between automatic and manual control over the positions of the blades. If automatic control is selected, then the horizontal and/or vertical blades are continuously pivoted within a predetermined angle. If manual control is selected, a target position for the horizontal and/or vertical blades is chosen, wherein a detector senses a current position of the blades and stops the motor(s) when the target position has been reached.Type: GrantFiled: February 13, 1997Date of Patent: September 22, 1998Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Woong Bang
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Patent number: 5810660Abstract: An air conditioner includes an air inlet, an air outlet, and a heat exchanger disposed therebetween. Adjustable blades extend across the outlet for controlling the direction of travel of air through the outlet. A door is movable for opening and closing the outlet. A timer counts a time interval following the input of an operation start signal or an operation stop signal and prevents the air conditioner from being started or stopped until a predetermined interval has elapsed. Following the elapse of the time interval, and before the opening or closing of the door, the blades are moved to an out-of-the-way position to avoid obstructing the movement of the door.Type: GrantFiled: May 2, 1997Date of Patent: September 22, 1998Assignee: Samsung Electronics Co., Ltd.Inventor: Gab-Youl Lee
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Patent number: 5797792Abstract: A mechanism for controlling the flow of air from an air-conditioning unit includes a row of guide vanes which are pivotally held by an outlet nozzle. The guide vanes are located at the lower end of an air course which has been formed within a body of the air-conditioning unit. The guide vanes control the flow of air in both left and right directions. This new design is characterized in that the angle of inclination of each guide vane progressively changes toward the end of the row. The air flow is controlled accurately in both the left and right directions so that the air flow reaches the desired location.Type: GrantFiled: October 17, 1996Date of Patent: August 25, 1998Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Satoru Kotoh, Kiyoshi Sakuma, Takayuki Yoshida, Hiromi Sano, Katuyuki Aoki, Shin'ichi Suzuki, Hideaki Koizumi, Kaoru Yamamoto, Kunio Matsushita, Kenichi Unno, Tomoko Oguma
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Patent number: 5788570Abstract: An air conditioner includes an air inlet, an air outlet, and a heat exchanger. The air outlet has adjustable air direction control blades extending thereacross enabling a direction of discharged air to be set by a user. The blades are adjusted by a motor. When the air conditioner is shut-off, a controller memory stores the position of the blades and then moves the blades to a closed state. Upon re-starting the air conditioner, the controller drives the motor to return the blades to their previous (memorized) position.Type: GrantFiled: May 2, 1997Date of Patent: August 4, 1998Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-Seok Cho
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Patent number: 5766070Abstract: The air diffuser device contains front horizontal deflecting fins ?(L1 to L5)! and rear vertical deflecting fins ?(L6 to L10)! capable of swinging relative to a nozzle housing ?(GH)!, said deflecting fins in each case being connected to each other via a coupling rod ?(K1; K2)!. The front and rear deflecting fins are adjustable by an operating/adjusting element ?(B)! guided along a front deflecting fin ?(L3)!. For the mutually independent adjustability of the front deflecting fins, on the one hand, and the rear deflecting fins on the other hand, the operating/adjusting element ?(B)! is connected on the back side via a ball joint ?(B3; V1)! with a connecting/adjusting element ?(V)!, which in turn is articulated on the rear deflecting fins with lengthwise displaceability perpendicular to the axis of swivel of said deflecting fins.Type: GrantFiled: August 5, 1996Date of Patent: June 16, 1998Assignee: Valeo Klimasysteme GmbHInventor: Stefan Schwarz
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Patent number: 5752877Abstract: An outlet nozzle assembly (10) includes a pivotal cover (20) which lies flush with the mounting structure (12) in the closed position and which pivots at one end (22) to be outwardly angled with respect to the mounting structure (12) in the open position exposing the outlet housing (18). The amount of opening may be manipulated through a ratchet mechanism (54). The cover (20) allows the outlet housing (18) to be invisible within the mounting structure (12) during non-use.Type: GrantFiled: February 28, 1996Date of Patent: May 19, 1998Assignee: Collins & Aikman Plastics, Inc.Inventor: Andy Kwan-Leung Sun
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Patent number: 5741179Abstract: An outlet assembly (10) is assembled from different shaped end modules (14,16,18) and any number of standard intermediate modules (20). Depending on the desired shape and length of the assembly (10), two of the end modules (14,16,18) are selected with any number of the intermediate modules (20) assembled therewith forming a housing (22). The housing (22) may form the barrel housing pivotable within a support (68). Louvers (76) and vanes may be connected therewith.Type: GrantFiled: May 17, 1996Date of Patent: April 21, 1998Assignee: Manchester Plastics, Inc.Inventors: Andy Kwan-Leung Sun, Michael Stephen Mikowski
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Patent number: 5722883Abstract: In order to be able to obtain in spite of individual adjustment possibilities for defined directions of air flow a uniform front design on the interior side that is not disturbed by different positions of deflecting fins or adjusting elements, deflecting fins (L1 to L6) behind a flow direction-neutral front baffle (F) can be driven into a corresponding dwelling position by a brief adjusting pivot motion with subsequent resetting of the front baffle (F).Type: GrantFiled: July 29, 1996Date of Patent: March 3, 1998Assignee: Valeo Klimasysteme GmbHInventor: Stefan Schwarz
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Patent number: 5709602Abstract: A construction of air conditioner louver having a louver body in which the air inflow side and the air blowout side communicate with one another, and a plurality of rotatable fins for regulating wind direction which are disposed at predetermined intervals via a rotating shaft in the louver body, wherein the fin is bent at a position near the rotating shaft portion and is formed into a bent plate shape such that both end portions are disposed downward.Type: GrantFiled: August 13, 1996Date of Patent: January 20, 1998Assignee: Suzuki Motor CorporationInventor: Mitsuhiro Onodera
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Patent number: 5697403Abstract: The object of the present invention is to provide a device to make flow uniform in a denitrification system, which can achieve a predetermined flow regulation effect with low pressure loss independently of the gas flow rate. According to the present invention, the device installed on the upstream side of a chemical injection means for the denitrification system is composed of at least one perforated plate 11, and the perforated plate 11 can be turned by a rotating shaft 10 or 10a from the closed position where the gas flow path is closed to the open position where the gas flow path is opened or vice versa.Type: GrantFiled: July 7, 1994Date of Patent: December 16, 1997Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Toshiyuki Onishi, Atsushi Morii, Shigeyuki Nishijima
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Patent number: 5690550Abstract: The outlet assembly (10) includes a barrel housing (16) pivotally supported along a horizontal axis. The barrel housing (16) supports a control housing (28) fixedly therein. The control housing (28) pivotally supports a plurality of louvers (34) therein. A link control plate (38) is operatively connected to the louvers (34) and slidable with respect to the control housing (28). The link plate (38) is moved outwardly to allow operation of the louvers (34) in parallel with one another, and is moved inwardly to spread the louvers (34) to cause diffusion of the air.Type: GrantFiled: April 24, 1996Date of Patent: November 25, 1997Assignee: Manchester Plastics, Inc.Inventor: Michael Stephen Mikowski
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Patent number: 5658197Abstract: An air conditioner includes a housing and a flow control blade mounted in an air discharge outlet of the housing. The blade is rotatable to various positions of adjustment about an axis defined by hinge pins of the blade mounted in hinge holes of the housing. A plurality of the hinge pins extend in the same direction and are of progressively different lengths so that when the blade is installed in the housing, the hinge pins can be successively inserted into their respective hinge holes; the need to simultaneously align all hinge pins with their hinge holes is avoided. A hinge pin disposed at one end of the blade extends in a direction opposite the other hinge pins and is inserted into an open end of a slot formed in the housing.Type: GrantFiled: July 12, 1995Date of Patent: August 19, 1997Assignee: Samsung Electronics Co., Ltd.Inventor: Yong Hyun Kil
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Patent number: 5626517Abstract: A flow of air from an air discharge passage has its direction of flow controlled by a series of louvers arranged to swing horizontally back and forth. Each louver has a hinge pin rotatably supported to form an axis of rotation. A connecting member interconnects a plurality of the hinge pins to transmit rotational movement between those hinge pins. The connecting member is attached to each hinge pin by a flexible connection enabling the hinge pin to rotate relative to the connecting member. The connecting member is disposed within a member which shields the connecting member from the air flow.Type: GrantFiled: March 13, 1995Date of Patent: May 6, 1997Assignee: Samsung Electronics Co., Ltd.Inventor: Yong H. Kil
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Patent number: 5599230Abstract: An air outlet structure for an air conditioner of an automobile having its instrument panel equipped with an air outlet. The air outlet structure comprises: a plurality of vertical fins disposed integrally turnably in the air outlet for controlling the horizontal flow of the conditioned air; a plurality of horizontal fins disposed integrally turnably in the air outlet for controlling the vertical direction of the conditioned air; a knob movably fitted on one of the horizontal fins or the vertical fins, which are positioned at the side of the air outlet, for turning the one fin; and a pair of legs formed at the back of the knob and engaging with one of the horizontal fins or the vertical fins, which are positioned at the deep side of the air outlet. The legs have their leading end portions formed into arcuate portions on the hinge pin of the fin which is fitted in the knob.Type: GrantFiled: April 10, 1996Date of Patent: February 4, 1997Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Rikihei Naruse, Akihiko Sugimoto
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Patent number: 5588911Abstract: A mechanical control device for the air flowing through air conditioning outlets. A control assembly with a lever that can be adjusted in two or more predetermined positions for different settings of air flow direction and volume. The lever lodges in two or more respective bays in a plate that locks the lever firmly in one of the preselected positions. The control assembly is mounted typically at a readily accessible position on a wall. A shielded cable assembly is controlled by the control assembly at one end and the other end is connected to the adjustable fins found in conventional air conditioning outlets. The shielded cable is hidden and routed from the wall mounted control assembly to the outlet protruding from the ceiling. The fins are commonly connected and spring biased to a preset position.Type: GrantFiled: October 11, 1995Date of Patent: December 31, 1996Assignee: AC Directional Control, Inc.Inventor: Reynaldo Gomez
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Patent number: 5586933Abstract: A grille (3) for use adjacent an outlet of a heating, ventilating or air conditioning system comprising a frame (15) and a plurality of blades (25) extending between opposed frame parts. Each blade (25) has a spindle (26) which is rotatably supported within opposed slots (21) formed in the opposed parts of the frame. The slots (21) are open at one end to permit the insertion of the blade spindle and the spindle is supported at the closed ends of the slots. The grille (3) further comprises means for retaining the blade spindles (26) in the slots (21). The retaining means comprise an element (30) mountable upon the frame (15) of the grille such that part of the retaining element (30) engages the blade spindles (26) when mounted upon the frame and prevents the spindles (26) from moving out of the open ends of the slots (21).Type: GrantFiled: November 2, 1994Date of Patent: December 24, 1996Assignee: Hunter Technical Developments LimitedInventors: Colin Sawyer, John Wallis, Peter Bartingale
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Patent number: 5573458Abstract: An air-conditioner outlet mounted into the holes predetermined on the wall comprises a seat with multiple wind outlets having a slot therein for slidably receiving a pushing button to adjust a plurality of movable leaves horizontally and elevationally. A link having a series of holes is connected with a plurality of movable leaves through the connection with the second lower protrusions provided at the other part of the lower end of the movable leaves with the holes of the link. Therefore, the pushing button is able to adjust the movable leaves by means of the connection between the second lower protrusions and the holes of the link.Type: GrantFiled: March 6, 1996Date of Patent: November 12, 1996Inventor: Chia-Chuan Chu
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Patent number: 5520579Abstract: A louver assembly for directing airflow from an air duct. The assembly includes a discharge outlet adapted to attach to an air duct at an opening thereof; a plurality of directional louvers pivotably attached to the discharge outlet; and a lever, connected to the louvers, for selectively directing airflow from the air duct in a plurality of directions. The lever is pivotably connected to at least one of the louvers for concurrently movably adjusting an orientation of the louvers.Type: GrantFiled: August 19, 1994Date of Patent: May 28, 1996Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Yoshitaka Saida
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Patent number: 5482506Abstract: An air conditioning blow-out port device includes a housing of a synthetic resin having pairs of shaft holes provided in a coaxial arrangement in opposite wall portions of a peripheral wall to extend through the opposed wall portions, and a plurality of blades each having a pair of support shafts which are projectingly provided coaxially on opposite end faces of each of blade bodies disposed within the housing. The support shafts are rotatably fitted into shaft holes, with each of tip ends thereof projecting from an outer surface of each of the opposed wall portions. A plurality of pairs of bosses are provided on the opposed wall portions and located coaxially with the shaft holes to define inlet openings of the shaft holes at sides of inner surfaces of the opposed wall portions and to abut against opposite end faces of the blade bodies. A plurality of pairs of recesses are provided in the opposed wall portions and located coaxially with the shaft holes.Type: GrantFiled: November 29, 1994Date of Patent: January 9, 1996Assignee: Moriroku Kabushiki KaishaInventors: Kazuhiko Tsuda, Hiroyuki Okamoto, Kazuhiro Hashimoto
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Patent number: 5480350Abstract: An automobile ventilator louver including a plurality of fins which are provided in a ventilator case so as to be turned in association with each other, and a control knob provided on a middle fin to turn the plural fins, wherein an engagement portion 901, 902, which engages with the rear end of the adjacent fin 3 when the control knob 7 is turned to a predetermined angle, is provided at the rear end of the control knob 7.Type: GrantFiled: December 28, 1994Date of Patent: January 2, 1996Inventor: Rikihei Naruse
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Patent number: 5468186Abstract: An adjustable louver assembly including a box like member having a plurality of longitudinal extending parallel louvers. The outer most of the louvers forming the top and bottom thereof and further including lateral sides interconnecting the top and bottom louvers. The box has an open front and back side and includes a plurality of vertical ribs, having a circular cross section, which interconnect each of the horizonal louvers. A plurality of planar air deflectors having complimentary means formed on a vertical edge thereof are adapted to engage one of the vertically extending ribs to thereby mount the deflectors for pivotal movement about the rib with the deflector extending perpendicular to the horizonal louvers.Type: GrantFiled: March 9, 1994Date of Patent: November 21, 1995Assignee: Carrier CorporationInventors: Theodore S. Bolton, Stephen Stopyra
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Patent number: 5456633Abstract: A method of and an apparatus for driving wind direction control louvers of an air conditioner, capable of accurately controlling the wind direction to be a desired direction by accurately driving a horizontally-extending control louver or a vertically-extending control louver adapted to control the wind direction of the air conditioner. The method includes a time measuring step for measuring the time taken for the control louver to be driven a predetermined amount, and a driving step for comparing the measured time obtained at the time measuring step with a reference time and increasing a drive force for the control louver when the measured time is more than the reference time while driving the control louver by a normal drive force when the measured time is not more than the reference time.Type: GrantFiled: June 15, 1994Date of Patent: October 10, 1995Assignee: Samsung Electronics Co., Ltd.Inventor: Kwi-Ju Choi
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Patent number: 5393262Abstract: An air-conditioning blow-out port device includes a housing of synthetic resin; a plurality of blades of synthetic resin each having a blade body disposed within the housing pairs of shaft bores provided in a coaxial arrangement in each pair in opposed portions of a peripheral wall of the housing; a pair of support shafts projectingly provided on opposite ends of the blade body and rotatably fitted in the shaft bores. A pivotal mounting portion is provided on each of the blades, and an interlocking link interlockingly connects the pivotal mounting portions of the blades. The pivotal mounting portion is comprised of a pivotal supporting shaft which is projectingly provided in parallel to the support shaft at an end of each blade body to extend through a pivotal supporting bore in the interlocking link, and a slip-off preventing projection provided at a tip end of the pivotal supporting shaft to engage an edge of the pivotal supporting bore.Type: GrantFiled: May 18, 1993Date of Patent: February 28, 1995Assignees: Moriroku Kabushiki Kaisha, Ise Kanagata Kogyo Kabushiki KaishaInventors: Kazuhiro Hashimoto, Katsumi Nakagawa
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Patent number: 5364303Abstract: An air vent comprising a first row of air vanes for controlling the lateral orientation of air emitted from the air vent and a second row of air vanes for controlling the vertical orientation of air emitted from the air vent. The first and second row of air vanes can be adjusted independently. The first row of air vanes has a control vane to which is mounted a control knob. The control knob is connected to the second row of air vanes by a ball joint mounted pin, whereby the vertical movement of the control knob results in rotation of the second row of air vanes about a horizontal axis. The control knob is connected to the first row of air vanes by links. The lateral movement of the control knob results in a corresponding parallel rotational movement of the first row of air vanes to control the lateral position of a concentrated stream of the air emitted from the air vent.Type: GrantFiled: July 9, 1993Date of Patent: November 15, 1994Assignee: Summit Polymers, Inc.Inventor: Warren W. Terry
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Patent number: 5338252Abstract: An air outlet louver assembly (10) includes a housing (12), primary vanes (14,36), secondary vanes (48,49), and a damper door (86). A control handle (58) independently controls the primary and secondary vanes (14,36,48,49), and a wheel (100) controls the damper door (86). Ridges (74) on a secondary vane (48) engage a control fork (66) on the control handle (58) to provide ratcheting control of the primary vanes (14,36) by the control handle (58). A nub (82) on a secondary vane (48) contacts depressions (80) in the housing (12) to provide ratcheting control of the secondary vanes (48,49). Frictional contact between a nub (106) on the wheel (100) and depressions (108) in the housing (12) provide ratcheting control of the damper door (86).Type: GrantFiled: May 6, 1993Date of Patent: August 16, 1994Assignee: Manchester Plastics, Ltd.Inventors: Geoffrey H. Bowler, Bruce H. B. Chow
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Patent number: 5251814Abstract: A louver is provided at an air outlet of an indoor unit. The louver changes the direction of air into the room and swings in a horizontal direction of the room. On the other hand, a temperature sensor unit is provided on the indoor unit. The temperature sensor unit senses temperatures at a plurality of locations in the room. A difference between sensed temperatures of the temperature sensor unit is detected, and the center of swing of the louver is set at a position determined on the basis of the detection result. Further, the angle of swing of the louver is changed in accordance with the detection result.Type: GrantFiled: October 16, 1992Date of Patent: October 12, 1993Assignee: Kabushiki Kaisha ToshibaInventors: Yoshitaka Warashina, Kazuo Mochizuki, Noboru Kumagai, Keiichi Morita, Atsushi Nagasawa
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Patent number: 5242325Abstract: An air conditioner has a body casing provided with an air inlet port and an air blow-off port, a vertical wind shifting element disposed in the body casing for vertically shifting a blow-off direction of wind through the blow-off port, a horizontal wind shifting element disposed in the body casing for horizontally shifting a blow-off direction of wind through a blow-off port and a control apparatus for controlling the vertical and horizontal wind shifting elements. The control apparatus comprises a first driving circuit for driving the vertical wind shifting element, a second driving circuit for driving the horizontal wind shifting element, and a control unit for controlling operations of the first and second driving circuits. A switching circuit for switching operations of the vertical and horizontal wind shifting elements may be further provided.Type: GrantFiled: July 20, 1992Date of Patent: September 7, 1993Assignee: Kabushiki Kaisha ToshibaInventor: Harunobu Nukushina
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Patent number: 5238448Abstract: The air-conditioning grille comprises an inner case having an opening through which the wind blows out located in a wind blowing duct. In the duct, provided are plural wind deflecting plates which are bendable so as to make both the ends thereof extend substantially crossing the blowing direction. In the duct provided is a connecting member which connects the upstream ends of the wind deflecting plates together and restricts rotations of these connecting portions relative to each other. Also provided is an operation member to be operated to bend the wind deflecting plates. One transfer shaft is provided to transfer an operational force of the operation member, at the time of its operation, to the connecting member. In order to prevent the connecting member from rotating itself about the transfer shaft with operation of the operation member, rotation moments of the connecting member about the transfer shaft substantially cancel one another.Type: GrantFiled: March 13, 1992Date of Patent: August 24, 1993Assignee: Toyoda gosei Co., Ltd.Inventors: Takahiro Komori, Kazuo Fujihara
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Patent number: 5234373Abstract: An air conditioner is provided with a room unit which comprises a suction grille member mounted to the front panel of the room unit and a blow-off grille member mounted to the lower portion of the front panel. The blow-off grille member comprises two louvers turnable around axes thereof parallel to each other, a link mechanism operatively connected to the louvers so as to turn the louvers with different angles, rspectively. The link mechanism comprises a plurality of link members, for example a five-knot link mechanism, which are turnably coupled with each other and a driving motor for driving the link mechanism to thereby turn the louvers with different air blow-off open angles, respectively. An operation mode transfer member may be further provided for the blow-off grille member to transfer the operation mode of the louvers.Type: GrantFiled: October 1, 1991Date of Patent: August 10, 1993Assignee: Kabushiki Kaishi ToshibaInventors: Masaya Yamazaki, Kenichi Tomiyoshi
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Patent number: 5230655Abstract: A plurality of adjustable louver assemblies are provided for a room air conditioner. Each louver assembly has a box-like housing which receives a plurality of horizontal and vertical louvers. Each set of horizontal and vertical louvers are linked so as to move in tandem An actuator wheel is rotatably attached to the housing and is engaged with one of the louvers of the upstream set of louvers such that rotation of the actuator will result in pivoting of the louvers. At least one of the sets of louvers is completely pivotable to a closed position so as to eject air more forcefully from the remaining open louver assemblies of the air conditioner.Type: GrantFiled: December 20, 1991Date of Patent: July 27, 1993Assignee: Whirlpool CorporationInventors: Christopher M. Thompson, Brian J. Phillips
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Patent number: 5188561Abstract: An air conditioning outlet and inlet grill for installation in static structures comprising a plurality of modular grill units and apparatus for interconnecting the plurality of modular grill units in a desired grid arrangement.Type: GrantFiled: August 1, 1991Date of Patent: February 23, 1993Inventors: Nissim Nissimoff, Jacob Nissimoff
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Patent number: 5186387Abstract: Disclosed is an air-conditioning apparatus for an automotive vehicle so adapted as to allow its louvers disposed at air outlets for blowing or supplying air into the vehicle compartment to constantly assume their original positions when the louvers stop swinging. The swinging louvers are arranged to allow their directions in which the air is blown or supplied to be periodically changed by the swinging motor. The swinging motor is driven on the basis of a control signal from a control unit. A switching circuit of the swinging motor is provided with a first switch for being turned on or off on the basis of the signal from the control unit and with a second switch so arranged in parallel to the first switch and in association with the swinging motor as to be turned off when the swinging louvers are returned to their original positions.Type: GrantFiled: August 2, 1991Date of Patent: February 16, 1993Assignee: Mazda Motor CorporationInventors: Shigetoshi Doi, Tsutomu Fujiki
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Patent number: 5159854Abstract: A gear drive unit of the type including a twin-shaft selective output mechanism is disclosed wherein first and second overrunning clutch mechanisms constituting the twin-shaft selective output mechanism are each composed of a spring-receiving chamber, a coiled spring and a driven gear. The first overrunning clutch mechanism, in response to rotation of a worm wheel in a forward direction, radially expands a first coiled spring to connect the worm wheel and a first driven gear, thereby connecting the worm wheel and a first driven gear to transmit the forward rotation of the worm wheel to the driven gear. Similarly, the second overrunning clutch mechanism is responsive to rotation of the worm wheel in the reverse direction to enlarge the diameter of a second coiled spring, thereby connecting the worm wheel and a second driven gear to transmit the reverse rotation of the worm wheel to the second driven gear.Type: GrantFiled: July 23, 1991Date of Patent: November 3, 1992Assignee: Zexel CorporationInventors: Kaoru Mino, Kazuo Yokoigawa