US3347250A - Dishwasher with improved liquid inlet system - Google Patents

Dishwasher with improved liquid inlet system Download PDF

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Publication number
US3347250A
US3347250A US463606A US46360665A US3347250A US 3347250 A US3347250 A US 3347250A US 463606 A US463606 A US 463606A US 46360665 A US46360665 A US 46360665A US 3347250 A US3347250 A US 3347250A
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United States
Prior art keywords
water
opening
dishwasher
top wall
enclosure
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
Application number
US463606A
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English (en)
Inventor
Leonard J Martiniak
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.)
General Electric Co
Original Assignee
General Electric Co
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
Application filed by General Electric Co filed Critical General Electric Co
Priority to US463606A priority Critical patent/US3347250A/en
Priority to GB21617/66A priority patent/GB1127118A/en
Priority to CH851566A priority patent/CH440595A/de
Priority to FR65282A priority patent/FR1483252A/fr
Priority to DE19661628596 priority patent/DE1628596A1/de
Priority to SE8085/66A priority patent/SE302671B/xx
Priority to NL6608244A priority patent/NL6608244A/xx
Application granted granted Critical
Publication of US3347250A publication Critical patent/US3347250A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line

Definitions

  • a liquid inlet system for an automatic dishwasher including a washing enclosure with a top wall formed in two different levels. An opening is formed in the part of the top wall interconnecting the two levels. A nozzle is spaced from the opening to project liquid therethrough. A baffle is provided within the enclosure to prevent escape of liquid during operation of the dishwasher.
  • This invention relates to automatic dishwashers, and more particularly to an automatic dishwasher wherein an improved water inlet system is provided.
  • Dishwashers presently on the market today do not utilize any of the energy of the incoming water during washing operations, that is, neither the pressure of the system supplying the water nor the temperature of the water is utilized during its introduction. Rather, dishwashers operate entirely on the basis of recirculation of the water after it has been introduced.
  • spraying in the water has the desirable effect of raising the temperature of the dishes.
  • this is not the case with the ordinary approach of letting water flow in down the side.
  • blowout A third, possibly even more significant, factor arises from a phenomenon present in virtually all dishwashers under certain circumstances which is called blowout."
  • blowout When very hot water is suddenly recirculated in finely divided form in large quantities, as may be true during a recirculation operation, in an enclosure filled with relatively cool air, the air expands so suddenly that it carries actual particles of liquid with it as it blows out through the vent of the tub.
  • vents are generally at the front of built-in dishwashers. While the temperature of the water, because of its finely divided condition, is not high enough to cause injury by the time it passes through the vent, it can nonetheless be a somewhat upsetting experience to a person standing in front of the dishwasher. In addition, either the floor or the person will become wet, which is, of course, disagreeable in either event.
  • a further more specific object of my invention is to provide such an inlet without utilizing: any excess space, either above or on the side of the dishwasher, since, particularly in built-in dishwashers, space is at very much of a premium.
  • my invention 1 provide a dishwasher where the washing enclosure is formed as usual with bottorn, top and side walls, and where at least one of the walls is movable so as to provide access to the enclosure.
  • the top wall is formed in at least two different levels, with the lower of these two levels being adjacent an edge of the top wall, and with an opening being formed in the part of the top wall which joins the two levels.
  • a water inlet nozzle positioned on the lower level and which is adapted to be connected to a source of washing fluid under pressure. This nozzle is in close but spaced horizontal alignment with the opening, and in close but spaced vertical relationship to the bottom edge of the opening.
  • FIGURE 1 is a view in perspective, partly broken away to show details, of a dishwasher of the built-in type, that is, of the type which is intended to be secured under a kitchen counter in :a permanent relationship to the counter;
  • FIGURE 2 is a top plan view, the dishwasher of FIGURE 1;
  • FIGURE 3 is a view along line 33 of FIGURE 2;
  • FIGURE 4 is a view along line 44 of FIGURE 3.
  • FIGURE is a view of the improved inlet assembly of this invention as viewed from line 5-5 in FIGURE 4.
  • Dishwasher 1 has an enclosure or tub 2 formed with sides including a back wall 3, side walls 4, and a front wall 7, a bottom section or wall 5, and a top wall 6.
  • the dishwasher illustrated is of the front opening or a drop-door type, that is, front wall 7 is formed as a door pivotable about its base 8 from the vertical position shown to a generally horizontal position (not shown) as is well known in the art.
  • tub 2 there are a pair of vertically spaced racks 9 and 10 adapted to receive dishes for washing.
  • racks 9 and 10 When door 7 is closed the racks are in the position shown, but when the door is open the racks may roll forward in a manner well known in the art to a position wherein they are readily accessible to an operator for loading and unloading operations.
  • pumping system within the dishwasher, there is an appropriate pumping system, generally shown by the numeral 11, for recirculating water within tub 2 so as to eifect washing of dishes during washing operations, and for removal of water subsequent to each washing or rinsing operation.
  • the rack structure, the front door structure, and the washing system may be of any type well known in the art.
  • one such system is shown in my US. Patent No. 3,213,866, for Dishwashing Apparatus With Conical Spray Device Means and assigned to the same assignee as the present application.
  • the operation of the dishwasher may be initiated by the operator by the use of a manually operable member 12. Then, as is conventonal in the art, an appropriate series of washing, rinsing and drying operations will be provided and thereafter operation will terminate.
  • the dishwasher is connected to a source of water under pressure (not shown), normally a conventional municipal Water system.
  • a valve (not shown) is controlled in the usual way so as to permit water to come from the water system through a conduit 13 to an inlet system generally indicated at 14 in FIGURES 1 and 2.
  • the valve (not shown) is controlled so as to permit the passage of water through conduit 13 at the beginning of all washing and rinsing operations.
  • it is conventional in many dishwashers, as has been mentioned above, to provide a purge operation at the very beginning of a dishwashing cycle.
  • top wall 6 of the dishwasher is formed so as to have an upper level 15 and a lower level 16.
  • Lower level 16 as is particularly well shown in FIGURE 1, is adjacent the edge 17 joining side wall 4 to top wall 6. While the vertical distance between the two levels 15 and 16 is not particularly great (for instance, inch constitutes a desirable structure), it does provide sufiicient room for an opening 17 to be provided in a plane which is at a substantial angle to the horizontal, joining the two levels 15 and 16 of top wall 6.
  • Assembly 18 Secured to the top wall, and preferably to the lower level thereof, is an inlet assembly 18.
  • Assembly 18 includes a tubular inlet section 1? connected to the conduit 13. This may be effected, in the conventional manner, by forcing the end of a conduit over the tubular portion 19 and then clamping it thereon with a suitable clamping member 20.
  • Assembly 18 is secured to lower level 16 by a flange 21, formed as an integral part of the assembly, which extends beneath the main portion of the assembly, passing through the bottom part of opening 17 and then extending back under level 16, where it is fastened to level 16 by any conventional means such as threaded fasteners 22.
  • Nozzle section 23 is formed as a flat, wide orifice; this can best be seen by observing the small vertical height of the orifice, as shown in FIGURE 3, and the substantial width of the orifice, as shown in FIGURES 4 and 5. It will further be observed that the outlet of the nozzle is substantially wider than the inlet, which necessarily is of the same width as the diameter of tubular portion 19. Thus, water passing through orifice 23 is guided in a fiat, wide stream extending out substantially in a horizontal plane.
  • the net effect of the assembly 13 is to cause a fan-shaped jet to issue from orifice 23. To the extent that it is needed, further guidance for the fan-shaped jet is provided by walls 24 and housing arrangement 29. The gap between walls 24 and 25 provides the air gap which is so important in apparatus of this type.
  • gap 26 provides, in effect, a functionally effective distance separating the end 30 of nozzle section 23 in a horizontal direction from opening 1'7. Further, a functionally effective vertical distance is provided between the end 30 of the nozzle and the bottom of opening 17. What this does, then, is to insure that if the tub 2 should, through some malfunctioning, fill with water and overflow through opening 17, the water thus issuing from the tub will flow along level 16 and down the sides of the tub and will not be able to flow through the nozzle 23 into the conduit 13 because there is no physical support which will permit the water to get back across gap 26. This means that there is no possibility of vitiated water being drawn back into the water supply system, and that the requirements of the plumbing code are thus met.
  • assembly 18 is positioned in one corner of top wall 6 facing inwardly from that corner, i.e., facing the diagonally removed corner, with the lengthwise dimension of opening 17 being perpendicular to a diagonal line drawn between the two corners.
  • the fan shaped jet issuing from the nozzle will assume the outline shown by the dotted lines 31 in FIGURE 2.
  • This fan shaped jet of water passes through a generally horizontally formed space between the top level 15 and a bafiie member 32 which extends in a plane parallel to the plane of the top level and is, in fact, preferably an extension of level 16.
  • baffle 32 may, in fact, be secured to level 16 by the same threaded members 22 which secure assembly 18 in place.
  • the baflle member 32 is formed with a number of louver sections 33 slanted, as shown, with openings 34 being provided between them. This provides a two-fold effect. First, when water is being recirculated in large quantities within tub 2 by system 11, it acts as a barrier preventing the water from being thrown out of the top of tub 2 through opening 17.
  • any water thus remaining on the baffle 32 may flow down through the openings 34 into the lower part of tub 2.
  • the overall shape of member 32 can readily be seen in FIGURE 2, where it is shown as being fan shaped so as to provide a substantiallyenclosed passage between level 15 adjacent opening 17 where the water enters the space above baffle 32, and the inner end of the baflle, removed from opening 17, where the water comes out into the tub proper.
  • a further structural feature to be noted is the series of arcuate corrugations, generally shown at 35, which are formed in the top 6 of the tub. corrugations 35 are partly beyond the outer end of baffle 32 and partly above the outer end of the bafile.
  • the corrugations have the purpose of preventing the water being recirculated at high velocity, and in large quantities, within tub 2 during a washing operation from splashing out through opening 17.
  • the inner surface of top 6 is formed as a number of short surfaces slanted at such an angle that water striking them from below will be directed back down rather than there being any possibility that it will be directed out through the opening 17.
  • the water inlet for tub 2 is through assembly 18, and more specifically through the nozzle portion 23 thereof, across the gap 26, through opening 17, then in a flat shaped jet through the space between baffle 32 and top 6 of the tub, and then into the tub itself.
  • assembly 18 and more specifically through the nozzle portion 23 thereof, across the gap 26, through opening 17, then in a flat shaped jet through the space between baffle 32 and top 6 of the tub, and then into the tub itself.
  • the structure is thus economical compared to previous water inlet systems, compact with respect to the amount of addition-a1 room taken up outside the confines of the tub when comared with such previous systems, and performs highly useful functions upon entering the tub, which has not been true of any previously used system which met the prevail-ing plumbing requirements.
  • a dishwasher comprising:
  • washing enclosure formed with a bottom wall, a top wall, and side walls, at least one of said walls being movable to provide access to said enclosure;
  • said top wall being formed in at least two different levels, with the lower of said levels being adjacent an edge of said top wall, said top wall having an opening formed between said levels;
  • a water inlet nozzle positioned outside said washing enclosure on the lower level and adapted to be connected to a source of washing fluid under pressure, said nozzle being in close but spaced horizontal alignment with said opening and in close but spaced vertical elevated relationship to the bottom edge of said opening.
  • a dishwasher comprising:
  • top wall a top wall, and side walls, at least one of said walls being movable to provide access to said enclosure;
  • a dishwasher comprising:
  • washing enclosure formed with a bottom wall, a top wall, and side walls, at least one of said walls being movable to provide access to said enclosure;
  • said top wall being formed in at. least two dilferent levels with the lower of said levels being adjacent an edge of said top wall, said top wall having an opening formed betweensaid levels;
  • bafile is formed with a plurality of louvers with open spaces be tween them, said louvers being tilted at an angle so as to slant downwardly facing toward said opening.
  • a dishwasher comprising:
  • top wall a top wall, and side walls, said side walls providing a substantially rectangular cross-section for said enclosure, at least one of said wall-s being movable to provide access to said enclosure;
  • said top wall being formed in at least two different levels with the lower of said levels being adjacent one corner of said top wall, said top wall having a slot-like opening formed between said levels extending in a direction substantially perpendicular to a diagonal line drawn between said one corner and the opposite corner of said enclosure;
  • a dishwasher comprising:
  • washing enclosure formed with a bottom wall, a top wall, and side walls, at least one of said walls being movable to provide access to said enclosure;
  • said top wall being formed in at least two different levels, with the lower of said levels being adjacent an edge of said top wall, said top wall having an opening formed between said levels, said top wall upper level having a portion adjacent said opening shaped to inhibit the splashing of water from said enclosure back out through said opening;
  • an inlet assembly adapted to be connected to a source of washing fluid under pressure so as to introduce such fluid into the dishwasher through the opening across an air gap
  • said inlet assembly comprises a nozzle positioned outside said dishwasher and formed to eject a horizontal substantially fan shaped jet of water, a housing aligned with said nozzle to guide said fan shaped jet of water, said housing having top and bottom surfaces and side surfaces converging from their ends removed from said nozzle to their ends near said nozzle, said housing and said nozzle being separated by an air gap across which such jet of water must pass without physical support, said housing and said nozzle being joined to each other solely by the bottom portion of said housing.
  • a dishwasher comprising:
  • top wall a top wall, and side walls, at least one of said walls being movable to provide access to said enclosure;
  • said top wall being formed in at least two different levels, the lower of said levels being adjacent an edge of said top wall, said top wall having an opening formed between said levels;
  • a water inlet assembly secured to the lower level and adapted to be connected to a source of washing fluid under pressure, said assembly comprising a nozzle positioned outside said washing enclosure in close but spaced horizontal alignment with said opening, and in close but spaced elevated vertical relationship to the bottom edge of said opening, said assembly further including a housing guide section positioned partly within said enclosure and joined to said nozzle solely by a floor section extending through said opening below said nozzle.
  • said inlet assembly includes a flange member extending from said floor section downwardly and backwardly into engagement with a wall of said enclosure below said assembly, said assembly being secured to said enclosure by said flange member.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
US463606A 1965-06-14 1965-06-14 Dishwasher with improved liquid inlet system Expired - Lifetime US3347250A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US463606A US3347250A (en) 1965-06-14 1965-06-14 Dishwasher with improved liquid inlet system
GB21617/66A GB1127118A (en) 1965-06-14 1966-05-16 Dishwasher with improved liquid inlet system
CH851566A CH440595A (de) 1965-06-14 1966-06-13 Geschirrwaschmaschine
FR65282A FR1483252A (fr) 1965-06-14 1966-06-13 Perfectionnements apportés aux machines à laver la vaisselle
DE19661628596 DE1628596A1 (de) 1965-06-14 1966-06-14 Geschirrspuelmaschine
SE8085/66A SE302671B (enrdf_load_stackoverflow) 1965-06-14 1966-06-14
NL6608244A NL6608244A (enrdf_load_stackoverflow) 1965-06-14 1966-06-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463606A US3347250A (en) 1965-06-14 1965-06-14 Dishwasher with improved liquid inlet system

Publications (1)

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US3347250A true US3347250A (en) 1967-10-17

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US463606A Expired - Lifetime US3347250A (en) 1965-06-14 1965-06-14 Dishwasher with improved liquid inlet system

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US (1) US3347250A (enrdf_load_stackoverflow)
CH (1) CH440595A (enrdf_load_stackoverflow)
DE (1) DE1628596A1 (enrdf_load_stackoverflow)
GB (1) GB1127118A (enrdf_load_stackoverflow)
NL (1) NL6608244A (enrdf_load_stackoverflow)
SE (1) SE302671B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3821961A (en) * 1972-12-29 1974-07-02 Gen Electric Fill funnel construction for plastic tubs
US3903911A (en) * 1973-11-21 1975-09-09 Gen Electric Dishwasher spray system
US6065171A (en) * 1999-02-19 2000-05-23 Whirlpool Corporation Detergent dispensing method and apparatus for a vertical axis washer
US20090101182A1 (en) * 2006-04-21 2009-04-23 Bsh Bosch Und Siemens Hausgerate Gmbh Dishwasher, in Particular Domestic Dishwasher
US20110232701A1 (en) * 2009-01-27 2011-09-29 Electrolux Home Products, Inc. Mastic-less dishwasher providing increasing energy efficiency and including a recyclable and reclaimable tub
US8201569B2 (en) 2009-01-29 2012-06-19 Electrolux Home Products, Inc. Fluid inlet for a dishwasher
US9445705B2 (en) 2011-09-22 2016-09-20 Electrolux Home Products, Inc. Fluid inlet for controlled filling of a dishwasher
CN108042075A (zh) * 2018-01-25 2018-05-18 芜湖应天光电科技有限责任公司 一种节水型洗碗机及其控制系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515025C2 (de) * 1995-04-24 1997-03-27 Premark Feg Corp Verfahren und Gestell zum Reinigen von Innenwänden einer Geschirrspülmaschine

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498179A (en) * 1918-03-09 1924-06-17 Lidseen Gustave Can-cover lock
US1690974A (en) * 1922-02-02 1928-11-06 Hazard George Edgar Washing machine
US1728153A (en) * 1928-06-02 1929-09-10 Alice I Donnellon Dishwasher
US2417908A (en) * 1943-05-01 1947-03-25 Bendix Home Appliances Inc Tub having a water inlet provided with a vacuum breaker
US2552852A (en) * 1945-10-16 1951-05-15 Westinghouse Electric Corp Dishwashing apparatus having detergent dispensing means
US2619977A (en) * 1950-08-09 1952-12-02 Gen Electric Water inlet for dishwashers or the like
US2704083A (en) * 1951-10-01 1955-03-15 Gen Electric Inlet fitting for dishwashers and the like
US2764169A (en) * 1954-11-22 1956-09-25 Peter P Bazarnic Dishwashing machine
US2871871A (en) * 1956-04-26 1959-02-03 Mc Graw Edison Co Water supply means for washing machines
US2966052A (en) * 1955-11-17 1960-12-27 Whirlpool Co Laundry machine and method
US3020741A (en) * 1959-12-31 1962-02-13 Borg Warner Water supply means for washing machine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498179A (en) * 1918-03-09 1924-06-17 Lidseen Gustave Can-cover lock
US1690974A (en) * 1922-02-02 1928-11-06 Hazard George Edgar Washing machine
US1728153A (en) * 1928-06-02 1929-09-10 Alice I Donnellon Dishwasher
US2417908A (en) * 1943-05-01 1947-03-25 Bendix Home Appliances Inc Tub having a water inlet provided with a vacuum breaker
US2552852A (en) * 1945-10-16 1951-05-15 Westinghouse Electric Corp Dishwashing apparatus having detergent dispensing means
US2619977A (en) * 1950-08-09 1952-12-02 Gen Electric Water inlet for dishwashers or the like
US2704083A (en) * 1951-10-01 1955-03-15 Gen Electric Inlet fitting for dishwashers and the like
US2764169A (en) * 1954-11-22 1956-09-25 Peter P Bazarnic Dishwashing machine
US2966052A (en) * 1955-11-17 1960-12-27 Whirlpool Co Laundry machine and method
US2871871A (en) * 1956-04-26 1959-02-03 Mc Graw Edison Co Water supply means for washing machines
US3020741A (en) * 1959-12-31 1962-02-13 Borg Warner Water supply means for washing machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3821961A (en) * 1972-12-29 1974-07-02 Gen Electric Fill funnel construction for plastic tubs
US3903911A (en) * 1973-11-21 1975-09-09 Gen Electric Dishwasher spray system
US6065171A (en) * 1999-02-19 2000-05-23 Whirlpool Corporation Detergent dispensing method and apparatus for a vertical axis washer
US20090101182A1 (en) * 2006-04-21 2009-04-23 Bsh Bosch Und Siemens Hausgerate Gmbh Dishwasher, in Particular Domestic Dishwasher
US8691025B2 (en) 2006-04-21 2014-04-08 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher, in particular domestic dishwasher
US20110232701A1 (en) * 2009-01-27 2011-09-29 Electrolux Home Products, Inc. Mastic-less dishwasher providing increasing energy efficiency and including a recyclable and reclaimable tub
US8201569B2 (en) 2009-01-29 2012-06-19 Electrolux Home Products, Inc. Fluid inlet for a dishwasher
US9247858B2 (en) 2009-01-29 2016-02-02 Electrolux Home Products, Inc. Fluid inlet for a dishwasher
US9445705B2 (en) 2011-09-22 2016-09-20 Electrolux Home Products, Inc. Fluid inlet for controlled filling of a dishwasher
CN108042075A (zh) * 2018-01-25 2018-05-18 芜湖应天光电科技有限责任公司 一种节水型洗碗机及其控制系统

Also Published As

Publication number Publication date
CH440595A (de) 1967-07-31
GB1127118A (en) 1968-09-11
NL6608244A (enrdf_load_stackoverflow) 1966-12-15
SE302671B (enrdf_load_stackoverflow) 1968-07-29
DE1628596A1 (de) 1970-08-20

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