US3065619A - Automatic dry cleaning machine having door switch controls - Google Patents

Automatic dry cleaning machine having door switch controls Download PDF

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Publication number
US3065619A
US3065619A US9785061A US3065619A US 3065619 A US3065619 A US 3065619A US 9785061 A US9785061 A US 9785061A US 3065619 A US3065619 A US 3065619A
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US
United States
Prior art keywords
door
switch
handle
cycle
hinge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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English (en)
Inventor
George R Coss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whirlpool Corp
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Whirlpool Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR1317665D priority Critical patent/FR1317665A/fr
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Priority to US9785061 priority patent/US3065619A/en
Priority to GB1021962A priority patent/GB947293A/en
Priority to CH330762A priority patent/CH380691A/fr
Priority to DK130462A priority patent/DK105393C/da
Application granted granted Critical
Publication of US3065619A publication Critical patent/US3065619A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7006—Predetermined time interval controlled
    • Y10T70/7034—Clockwork control

Definitions

  • This invention relates generally to door-operated safety devices and relates specifically to safety devices and c011- trols therefor that are operated by the opening and closing of an access door in a dry cleaner apparatus suitable for use in a coin-operated installation.
  • VNoninflammable chlorinated hydrocarbons have been used as cleaning solvents, however, and such materials include carbon tetrachloride, perchlorethylene and trichl-orethylene, all of which are used as dry cleaning solvents.
  • the machine includes a generally imperforate tank or casing having a sump formed with a drain outlet and a solvent circulation system including a nozzle which projects a stream of cleaning solvent through an access opening located in the front wall of a rotatable p-erforate drum which may be selectively driven at tumbling and extracting speeds by a motor through a power transmission path.
  • the tank or casing is also provided with an access opening closed by a door and through which materials to be dry cleaned are charged into the treatment zone.
  • mechanism is associated with the door hinges whereby opening of the door will energize the machine blower motor, thus drawing ambient air into the dry cleaner through the access door, thereby preventing the escape of cleaning solvent vapo-rs through the open door.
  • Yet another safety feature provided in accordance with the principles of the present invention is the utilization of a door switch sensitive to even the slightest opening of the door to completely deenergize all of the dry cleaner operating elements.
  • a still further safety feature contemplated bythe present invention is a locking mechanism that prevents the door from being opened at any time during the complete dry cleaning cycle, except during the first minute or during a first selected interval of the cycle, or during the oif period between cycles.
  • a locking mechanism that prevents the door from being opened at any time during the complete dry cleaning cycle, except during the first minute or during a first selected interval of the cycle, or during the oif period between cycles.
  • a specic object of the present invention is to provide means to prevent the escape of cleaning solvent vapors through an open access door.
  • Yet another object of the present invention is to prevent damage to property and personnel through the deenergization of all dry cleaning operating elements whenever the door is opened.
  • Yet another object of the present invention is to provide locking mechanism for a ⁇ dry cleaner apparatus which prevents the door from being opened at any time during a dry cleaning cycle except during an initial selected interval.
  • FIGURE 1 is a front elevational view somewhat schematic and fragmentary in part and illustrating the mechanical arrangement of components contemplated for utilization in an access door construction for a dry cleaner apparatus.
  • FIGURE 2 is a partial wiring diagram fragmentarily illustrating specific electrical control circuitry associated with the access door of a dry cleaner for accomplishing the specic ends of the present invention.
  • FIGURE 1 there is depicted one wall of a horizontal drum-type machine S wherein materials to be dry cleaned are tumbled within a drum positioned in the usual manner within a generally imperforate tank 6 and rotatable therein about a generally horizontal axis.
  • the dry cleaning solvent preferably comprises a chlorinated hydrocarbon such as perchlorethylene.
  • a coin-operated dry cleaner of the type with which this invention finds particular utility would operate through a typical cycle without anything being required of the machine operator than to place the required number of.
  • a coin receptacle 7 having a coin slot 8 through which one coin at a time of a given denomination, for example, a United States quarter may be inserted by the operator.
  • a coin-reject return is shown at 9.
  • the machine has a sequential controller of the type incorporating a timer motor iti which may be of the stepping type and which operates to advance, in accordance with predetermined time increments, a series of switch cams indicated symbolically at 11 via mechanical connections l2.
  • Each of the switch cams has an appropriate action surface engaging and controlling a corresponding switch blade establishing appropriate electrical connections with circuitry 13 embodying control means for automatically operating the dry cleaner through a programmed sequence of periods constituting a dry cleaning cycle.
  • the time operation for one 'complete cycle of the dry cleaner apparatus or fluid ow system can be.
  • the apparatus will automatically progress through a dry cleaning cycle having fty intervals of one minute each including three minutes of'pre-drying during which the filter elements of the dry cleaning apparatus are coated with a filter aid, nine minutes of wash, ve minutes of high speed extraction, twenty-nine minutes of drying and four minutes of deodorizing the materials being dry cleaned with fresh outside air to remove any residual perchlorethylene vapors from the clothes.
  • the machine 5 have an access door 14 supported by two hinges including a top or upper hinge 16 and a lower or bottom hinge 17.
  • the lower hinge mechanism consists of a square hinge plate 18 mounted on a hinge drum 1'9 and attached by fastening means such as rivets 20 to an inside panel of the door 14.
  • fastening means such as rivets 20
  • a spring member 21 In between the door 14 yand the hinge plate 18 and secured by the rivets 20 is a spring member 21, a hinge switch actuator bracket 22. is connected to the spring member 21 by one or more fasteners such as the rivets 23.
  • the actuator bracket 22 is connected to a plastic cord member 24 by means of a loop connection shown at 26.
  • the cord 24 extends laterally away from the actuator 22 but its direction is changed by wrapping it around a roller 27 carried in a roller bracket 2S supported on the wall of the casing 6.
  • the other end of the cord 24 is provided with a coupling 29 and is connected to a hook 30 formed on one end of a spring 31, the other end of the spring 31 being fastened in firm assembly to the casing 6 by means of a fastening bracket 32.
  • a hinge switch is shown generally at 33 and has an actuator 34 engaged by an end portion 36 of the hinge switch actuator bracket 22.
  • the hinge switch 33 is a double-pole, doublethrow switch having two movable switch arms 37 and 38, respectively, which are ganged by mechanical connections 39.
  • the switch arms 37 and 38 When the door 14 is closed, the switch arms 37 and 38 will contact switch contacts shown at ⁇ 40 and 41 and whenever the door 14 is opened to any other position besides its completely closed and locked position, the switch arms 37 and 38 are moved to engage the switch contacts 42 and 43 respectively.
  • the power lines for energizing the circuitry of the machine are shown at L1, L2 and N. Also, the machine is shown as being provided with a blower ⁇ 44 driven by a blower motor 46. As shown in FIGURE 2, the blower motor 46 is connected ⁇ directly across the power source through the switch arm 37 and the contact 42 of the hinge switch 33. Accordingly, the blower motor will be energized to draw room air in through the dry cleaner door 14 whenever the door 14 is opened, thereby precluding the escape of volatilized cleaning solvent.
  • the air drawn in through the access door may be vented through a blower outlet 47, herein shown in FIGURE 1 as being provided in the fan scroll 48 of the blower mechanism.
  • the door 14 is formed with a door handlet.
  • the handle 50 is normally biased by a spring 52 surrounding a door hinge pin 53 which pivotally carries the handle 50 on the front of the door.
  • the bias of the spring 52 is such as to locate the extreme right end of the handle 50, as shown in FIGURE 1, with its inner surface at an innermost position against an actuating plunger 54 of a handle switch shown generally at 56.
  • the handle switch 56 includes a switch arm 57 which does not engage a switch contact ⁇ Sit whenever the door 14 is closed and the handle 50 is biased to its normal innermost position. However, whenever an operator grasps the handle 50 and pulls the handle S@ against the bias of the spring 52, the plunger 54 will be free to be moved outwardly, whereupon the switch arm '57 will close against the switch contact 58.
  • the door 14 is provided with an electrical latching arrangement.
  • an unlatching motor means is shown generally at 6@ and includes a solenoid coil 61 which operates upon energization to draw inwardly a plunger 62.
  • the plunger 62 has an extension 63 connected as at 64 to a cam member 66 provided with a wedging surface 67.
  • the cam member is connected as at 68 to a return spring 69, the opposite end of which is connected to a bracket 7G attached in firm assembly to the casing 6.
  • the cam action surface 67 actuates a lock bolt 71 having a keeper portion 72 which enters and engages openings shown at 73 formed between the door 14 and its frame.
  • a spring 74 normally urges the keeper portion 72 into locking postion, however, when the solenoid coil 61 is energized, the plunger 62 will draw the cam member downwardly, thereby camming the bolt 71 to the left as shown in FGURE l and unlatching the door 14.
  • the timer motor 10 drives through the mechanical means 12 a cam A and a cam B, each operatively arranged with a corresponding switch arm shown at Sa and Sh, respectively.
  • the switch Sb closes against a switch contact 76 and the switch thus provided is arranged in series with the handle switch S6, as well as the unlatch solenoid 60.
  • the switch Sa closes against a Contact 77, thereby closing an energization circuit across the power line to the blower motor 46 for effecting energization of the blower motor 46 as a part of the sequenced series of control periods during an operating cycle of the dry cleaner.
  • a door switch 80 having an actuater shown at 81.
  • the switch S0 may be of the microswitch type, thereby to effect operation of a switch arm shown in FIGURE 2 at S2, which opens ⁇ and closes against a switch contact 83.
  • the door switch 80 will immediately open, thereby moving the switch arm 82 away from the contact S3 to deenergize all of the operating circuits associated with the control means and circuitry for the operating cycle ofthe dry cleaner.
  • the hinge switch 33 is still independently operative to energize the blower motor 46 via the power line L1, the switch arm 37, the contact 42 and to the neutral line N. Accordingly, vapor will still be prevented from escaping through the door.
  • the arm 37 and the arm 38 of the hinge switch 33 are set to close before the door switch 80 will close when the door 14 is closed. lf, however, the door 14 is opened so that the switch arm 33 is closed against the contact 43, it will be noted thatv if the door switch actuator is either accidentally or intentionally actuated, then the contact 41 of the hinge Yswitch 33 will not be closed so that protection in addition to the door switch 8i) is provided by the arrangement disclosed.
  • the cam B can be arranged to have the switch Sb closed only during specified intervals of the operating cycle, for example, the first minute of operation, or during the oi period between successive cycles.
  • specified intervals of the operating cycle for example, the first minute of operation, or during the oi period between successive cycles.
  • the operator wishes to open the door to insert an additional piece of material, or for any other purpose, all that is necessary is that the operator pull outwardly on the handle 50, whereupon the handle switch arm 57.will close against the contact 58 and the switchSb ⁇ willtalreadybe closed against the switch contact 76, thereby completing van electric circuit to the unlatch solenoid 60 from the neutral line N to the switch contact 40 of the hinge switch 33.
  • the hinge switch 33 has a deiinite operation lag relative to the operation of the handle switch 56.
  • the door 14 would have to be opened two or three inches before the hinge switch 33 would be actuated to move the switch arms 37 and 38 away from the contacts 40 and 41, respectively.
  • the circuit to the unlatch solenoid 60 is completed and the unlatch solenoid 60 operates instantly, thereby pulling the cam member 66 downwardly and operating the bolt 71 to the left and pulling the keeper portion 72 against the bias of the spring 74 for permitting the operator to open the door 14.
  • the hinge switch 33 When the door 14 is opened enough to clear the keeper portion of the lock bolt, the hinge switch 33 will move the arm 37 away from the contact 40 and against the contact 42, thereby energizing the blower motor 46 to prevent the escape of solvent vapors through the open door.
  • the dry cleaning solvent such as perchlorethylene is being circulated through the hydraulic circuit of the machine and a filter aid is being added to the solvent, thereby to precoat the filter mechanism with the filter aid. Accordingly, during such first interval of operation there is no cleaning solvent whatsoever entering the drum area of the machine 5 adjacent the open door 14. Accordingly, this one interval or one minute at the beginning of the cycle, during which the door 14 is permitted to be opened, affords the operator an opportunity to put all of the articles desired in the machine.
  • the precoating portion of the predry period of the cycle is selected to be longer than the exemplary three intervals or three minutes, it would be permissible, of course, to allow for more than just one interval or one minute of door opening time.
  • the switch arm Sb will be moved to open the Contact 76, whereupon the door 14 will remain latched until the completion of the remaining portion of the dry cleaning cycle. It will be understood that when the door 14 is pushed closed by the handle 56, the unlatch solenoid 60 will again be energized and the lock bolt 71 will be pulled to the left to allow the door 14 to be completely closed and locked.
  • a cleaning machine using a volatile solvent as a cleaning medium comprising, a cabinet enclosing said machine, an access door in said cabinet controlling access to said cleaning machine, a handle for opening and closing said door, an electric switch operated by said handle, a locking device for said door, a solenoid controlling said door-locking device, a sequential controller for operating said cleaning machine through sequenced steps of a cleaning cycle, a switch controlled by said sequential controller, and a control circuit including said handleoperated switch, said locking device solenoid and said sequential controller switch, said control circuit being eiiective when said sequential controller switch is closed and said handle is moved to actuate said handle switch to operate said solenoid and unlock said access door.
  • a cleaning machine using a volatile solvent as a cleaning medium comprising, a cabinet enclosing said machine, an access door in said cabinet controlling access to said cleaning machine, a handle for opening and closing said door, an electric switch operated by said handle,
  • a-locking device for said door a solenoid controlling said door-locking device, a sequential controller for operating said cleaning machine through sequenced steps of a cleaning cycle, a switch controlled by said sequential controller, and a control circuit including said handleoperated switch, said locking device solenoid and said sequential controller switch, said control circuit being effective when said sequential controller switch is closed and said handle is moved to actuate said handle switch to operate said solenoid and unlock said access door, air translation means in said cleaning machine, circuit means including electric drive means for said air translation means, and an electric switch in said circuit means actuated when said door is unlocked and opened to energize said electric drive means for said air translation means to draw room air from the space surrounding said cabinet through said access door into said cleaning machine to preclude the escape of volatile solvent vapors from said cleaning machine.
  • a sequential controller for a casingenclosed dryv cleaning apparatus having an access door through which materials are charged for treatment in a cycle of sequenced periods, a timer motor for said controller, plural cams driven by said timer motor, a door handle for said access door, a door switch in series with said timer motor and operated upon opening of said access door to deenergize the dry cleaning apparatus whenever the door is opened, circuit means including a motor-operated blower and including a normally open switch operated by the door to closed position for operating the blower whenever the door is opened to draw air inwardly through the door and prevent the inadvertent escape of cleaning solvent vapors through the open door, and separate cam-operated switch means in said controller for energizing said blower motor during selected periods of the cycle, and an electrically operated latch for locking said door, and a door handle switch operated by said door handle and a cam-operated latch switch controlled by said sequential controller and in series with said door handle switch, said door handle switch being actuated by said door handle, whereupon concurrent operation
  • a casing having an access door, a movable door handle on said door, circuit means including a sequential controller for operating mechanism in said casing through sequenced periods of a cycle, an electrically operated latch for locking said door, a door handle switch and a cam-operated latch switch controlled by said sequential controller and in series therewith, said door handle switch being actuated by said door handle, whereupon concurrent operation of said door handle switch and said latch switch during a selected period of the cycle is necessary to unlatch said door.
  • a casing having an access door, a door handle on said door, circuit means including a sequential controller for operating mechanism in said casing through sequenced periods of a cycle, an electrically operated latch for locking said door, a door handle switch and a cameoperated latch switch in series therewith and controlled by said sequential controller, said door handle switch being actuated upon pulling the door handle, whereupon concurrent operation of said handle switch and said latch switch during a selected period of the cycle is necessary to unlatch said door, said casing being adapted to contain a supply of volatile liquid within the interior thereof, circuit means including a switch actuated by said access door, and blower means in said casing controlled by said switch and energized whenever said door is opened to draw air inwardly through said access door for preventing the escape of volatilized vapors.
  • a door switch actuated by said access door to stop said operating mechanism whenever said access door is opened without affecting the control of said blower means by said switch.
  • said lower hinge having means for biasing the door closed and further including a hinge switch and a llexible strap member yieldable about said lower hinge during movement of said door for actuating'said hinge switch, a blower in said casing having a drivey motor energized by said hinge switch whenever said door is opened, thereby to draw air in through said door to prevent escape of cleaning uid vapors.
  • a casing having an access door, rst and second hinges supporting said door, one of said hinges having means for biasing the door closed and further including a hinge s-witch and a exible strap member yieldable about said one of said hinges during movement of said door for actuating said hinge switch, a blower in said casing having a drive motor energized by said hinge switch whenever said door is opened, thereby to draw air in through said door to prevent escape of cleaning fluid vapors.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning In General (AREA)
US9785061 1961-03-23 1961-03-23 Automatic dry cleaning machine having door switch controls Expired - Lifetime US3065619A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR1317665D FR1317665A (enrdf_load_stackoverflow) 1961-03-23
US9785061 US3065619A (en) 1961-03-23 1961-03-23 Automatic dry cleaning machine having door switch controls
GB1021962A GB947293A (en) 1961-03-23 1962-03-16 Improvements in or relating to dry cleaning apparatus for the sequential treatment of materials
CH330762A CH380691A (fr) 1961-03-23 1962-03-20 Machine à laver
DK130462A DK105393C (da) 1961-03-23 1962-03-21 Sikkerhedsmekanisme, der betjenes ved åbning og lukning af indføringsåbningen i en maskine til kemisk rensning.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9785061 US3065619A (en) 1961-03-23 1961-03-23 Automatic dry cleaning machine having door switch controls

Publications (1)

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US3065619A true US3065619A (en) 1962-11-27

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Application Number Title Priority Date Filing Date
US9785061 Expired - Lifetime US3065619A (en) 1961-03-23 1961-03-23 Automatic dry cleaning machine having door switch controls

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US (1) US3065619A (enrdf_load_stackoverflow)
CH (1) CH380691A (enrdf_load_stackoverflow)
DK (1) DK105393C (enrdf_load_stackoverflow)
FR (1) FR1317665A (enrdf_load_stackoverflow)
GB (1) GB947293A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122009A (en) * 1962-10-25 1964-02-25 Cook Machinery Co Inc Laundry machine
US3206950A (en) * 1963-02-25 1965-09-21 Space Corp Dry cleaning system
US3236073A (en) * 1963-12-23 1966-02-22 Hupp Corp Coin operated dry cleaning system
US3250097A (en) * 1963-07-31 1966-05-10 Mc Graw Edison Co Dry cleaning machine
US3283548A (en) * 1963-07-31 1966-11-08 Mc Graw Edison Co Dry cleaning machine
US3391550A (en) * 1962-05-28 1968-07-09 L T Ind Inc Drycleaning machine
US3408834A (en) * 1967-04-03 1968-11-05 Gen Electric Lid latch and interlock
US3535896A (en) * 1967-10-25 1970-10-27 British Domestic Appliances Safety interlock for the access door of washing and the like machines
US3602015A (en) * 1969-03-17 1971-08-31 Westinghouse Electric Corp Electromechanical interlock for laundry apparatus
DE2147125A1 (de) * 1971-07-02 1973-01-11 Ama Artigiani Mecc Ass Trockenwaschmaschine
US3811300A (en) * 1972-06-26 1974-05-21 Unimac Co Inc Spray rinse device for washer-extractor
EP0067452B1 (de) * 1981-06-16 1986-09-17 Multimatic Maschinen GmbH. & Co. Vorrichtung zum Reinhalten der Umgebungsluft beim Entleeren und Reinigen der Destillierblase von Trockenreinigungsvorrichtungen
US5172577A (en) * 1990-12-27 1992-12-22 Gibson Alfred G Timed door locking device
US20100264675A1 (en) * 2009-04-21 2010-10-21 Cosco Management, Inc. Panel lock

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281852A (en) * 1940-07-08 1942-05-05 Colt S Mfg Co Dishwashing machine
US2714848A (en) * 1950-09-20 1955-08-09 Carl S Shields Blast gate and system
US2910317A (en) * 1956-01-25 1959-10-27 Mc Graw Edison Co Safety locking means for laundry machines
US2954689A (en) * 1955-11-30 1960-10-04 Braun Inc G A Combination washing and extracting machine
US2964934A (en) * 1953-07-10 1960-12-20 Carl S Shields Apparatus for laundry machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281852A (en) * 1940-07-08 1942-05-05 Colt S Mfg Co Dishwashing machine
US2714848A (en) * 1950-09-20 1955-08-09 Carl S Shields Blast gate and system
US2964934A (en) * 1953-07-10 1960-12-20 Carl S Shields Apparatus for laundry machines
US2954689A (en) * 1955-11-30 1960-10-04 Braun Inc G A Combination washing and extracting machine
US2910317A (en) * 1956-01-25 1959-10-27 Mc Graw Edison Co Safety locking means for laundry machines

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391550A (en) * 1962-05-28 1968-07-09 L T Ind Inc Drycleaning machine
US3122009A (en) * 1962-10-25 1964-02-25 Cook Machinery Co Inc Laundry machine
US3206950A (en) * 1963-02-25 1965-09-21 Space Corp Dry cleaning system
US3250097A (en) * 1963-07-31 1966-05-10 Mc Graw Edison Co Dry cleaning machine
US3283548A (en) * 1963-07-31 1966-11-08 Mc Graw Edison Co Dry cleaning machine
US3236073A (en) * 1963-12-23 1966-02-22 Hupp Corp Coin operated dry cleaning system
US3408834A (en) * 1967-04-03 1968-11-05 Gen Electric Lid latch and interlock
US3535896A (en) * 1967-10-25 1970-10-27 British Domestic Appliances Safety interlock for the access door of washing and the like machines
US3602015A (en) * 1969-03-17 1971-08-31 Westinghouse Electric Corp Electromechanical interlock for laundry apparatus
DE2147125A1 (de) * 1971-07-02 1973-01-11 Ama Artigiani Mecc Ass Trockenwaschmaschine
US3811300A (en) * 1972-06-26 1974-05-21 Unimac Co Inc Spray rinse device for washer-extractor
EP0067452B1 (de) * 1981-06-16 1986-09-17 Multimatic Maschinen GmbH. & Co. Vorrichtung zum Reinhalten der Umgebungsluft beim Entleeren und Reinigen der Destillierblase von Trockenreinigungsvorrichtungen
US5172577A (en) * 1990-12-27 1992-12-22 Gibson Alfred G Timed door locking device
US20100264675A1 (en) * 2009-04-21 2010-10-21 Cosco Management, Inc. Panel lock
US8152208B2 (en) 2009-04-21 2012-04-10 Cosco Management, Inc. Panel lock

Also Published As

Publication number Publication date
FR1317665A (enrdf_load_stackoverflow) 1963-05-10
DK105393C (da) 1966-09-26
CH380691A (fr) 1964-08-14
GB947293A (en) 1964-01-22

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