US3851801A - Dispensing device having lost motion piston pump - Google Patents
Dispensing device having lost motion piston pump Download PDFInfo
- Publication number
- US3851801A US3851801A US00225421A US22542172A US3851801A US 3851801 A US3851801 A US 3851801A US 00225421 A US00225421 A US 00225421A US 22542172 A US22542172 A US 22542172A US 3851801 A US3851801 A US 3851801A
- Authority
- US
- United States
- Prior art keywords
- piston
- dispensing device
- piston rod
- passage
- chamber
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/01—Spray pistols, discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
Definitions
- a piston rod extends longitudinally through a chamber of a cylinder which is provided in one end wall with a dispensing nozzle.
- a piston surrounds and is slidable along the piston rod between a forward position expelling matter through the nozzle, and a retracted position.
- One or more passages are provided in the piston and/or the piston rod and these passages connect opposite axial ends of the piston but are open only when the piston is in the forward position.
- a supply of material to be dispensed communicates with the chamber rearwardly of the piston.
- the present invention relates generally to a dispensing device, and more particularly to a device for dispensing a bonding agent.
- Dispensing devices are already known and in use in the book-binding art and in similar applications, wherein an adhesive or a bonding agent is to be dispensed and applied to a point of use.
- the bonding agent is accommodated in a supply vessel which can be heated in order to heat the bonding agent itself.
- the bonding agent is supplied from the vessel via a similarly heatable connecting conduit under pressure to a spray or dispensing arrangement.
- the supply vessel itself is not part of a structural unit with the spraying arrangement. When a valve is actuated the bonding agent is expelled from the nozzle of the spraying arrangement.
- An additional object of the invention is to provide such a dispensing device in which a straight spray or stream of material is dispensed during each incident of use, so that the stream can be directed without difficulty to a desired location, and wherein further the stream has a well defined beginning and end at the initiation and termination of the incident of use.
- a dispensing device particularly for applying a bonding agent.
- This dispensing device comprises cylinder means having an elongated internal chamber provided with two end walls. Dispensing nozzle means is provided and communicates with the chamber at one of the walls.
- a piston rod extends longitudinally through the chamber and a piston surrounds and is slidable along the piston rod between an expelling position closer to and a retracted position farther from the one end wall.
- the piston divides the chamber into two compartments which are located at opposite axial sides of the piston.
- Passage means is open and connects the compartments when the piston is in its expelling position, and is closed when the piston is in its retracted position.
- Supply means forms a part of the dispensing device and communicates with the chamber intermediate the piston and the other of the end walls for supplying material to be dispensed.
- FIG. 1 is a cross-section through one embodiment of the invention
- FIG. 2 is a fragmentary detail view is an enlargedscale section. illustrating the piston of FIG. 1 in its expelling position
- FIG. 3 is a view similar to FIG. 2 but illustrating the piston in its retracted position.
- reference numeral 1 identifies a supply vessel intowhich material to be dispensed is introduced, for instance a glue orv other bonding agent.
- a cover 2 is provided to close the vessel I which has an opening 3 at its lower end through which a suitable heating element 4 extends into the interior of the vessel, leaving enough space so that material can flow around the heating element 4 and leave the vessel 1.
- the heating element 4 may be an electrical heating element whose operation and structural details are of no consequences for the purposes of the present invention, it being understood that these heating elements are known per se from the prior art.
- the vessel 1 is mounted on and structurally connected with a thermallyconductive body 5 in which there is provided a path or conduit 6 for material which leaves the vessel 1 through the opening 3 thereof.
- a filter 7 may advantageously be interposed in the conduit 6, and a further heating element 8 (of the same type for instance of the heating element 4) with a thermostat 9 for controlling its operation, may also be located in the body 5 in order to transmit heat to material passing through the passage or conduit 6.
- a cylinder 10 which is coaxially connected with a pneumatic cylinder 11.
- a piston 12 is slidably accommodated in the chamber of the cylinder 11, which latter has two openings 13 and 14 for the inlet and outlet of compressed air.
- a pistonrod 16 is fast with the piston 12 and extends into the cylinder 10 in which there is located a piston 15 which surrounds and is slidable longitudinally of the piston rod 16 in the cylinder 10.
- a one-way valve 17 closes the lower end of the chamber in the piston 10, that is the outlet path for material to be dispensed by the dispensing nozzle 18 provided at this lower end.
- the upper free end of the piston rod 16 faces the upper or rear end of the pneumatic cylinder 11, and an adjustable screw 19 is mounted at this upper or rear end extending axially towards this free end of the piston rod 16.
- an adjustable screw 19 is mounted at this upper or rear end extending axially towards this free end of the piston rod 16.
- the screw 19 will encounter the free end of the piston rod 16 sooner or later during axial displacement of the latter, that is it will limit the extent to which the piston rod can travel.
- a conical portion 21 and a cylindrical portion 24 of the piston rod 16 are located in the chamber of the cylinder 10. On the cylindrical portion 24 the piston is mounted for axial sliding movement between an expelling position which is shown in FIG. 2 and a retracted or rest position which is shown in FIG. 3.
- the piston 15 is provided with an axial bore or passage 22 which conically opens in direction towards the conical portion or bead 21 of the piston rod 16.
- the conical portion 21 of the piston rod 16 enters into the conical part of the bore 22 and, inasmuch as connecting passages 25 (of which one or more may be provided) which connect the opposite axial ends of the piston 15 with one another, terminate in the conical part of the bore 22, these passages 25 are closed when the piston 15 is in the position shown in FIG. 3.
- the passages 25 establish a communication between the cylinder compartments and 23 which are located at the opposite axial sides of the piston 15, whereas when the piston is in the position of FIG. 3 this communication will be terminated.
- the operation of the device disclosed herein will already be clear from what has been set forth thus far.
- the material to be dispensed for instance liquid glue
- the glue has already been heated by the heating element 4, increasing its flowability.
- the thermostat 9 regulates a precise maintenance of the desired temperature and the filter 7, if provided, filters any particulate contaminants out of the glue so that they cannot clog the nozzle 18.
- the piston rod slides initially into the piston 15 until the conical portion 21 becomes seated in the conical part of the bore 22 of the piston 15, as shown in FIG. 3, so that communication between the compartments at the opposite sides of the piston 15 is closed and it becomes impossible for further glue to flow into the compartment 23.
- Further forward or downward movement of the piston rod 16 then causes the piston 15 to move in the same direction, opening the one-way valve 17 and ejecting the glue through the nozzle 18.
- Subsequent retraction of the piston 15 results in the development of a vacuum in the compartment 23 between the piston 15 and the nozzle 18, so that additional glue can rapidly be aspirated into this compartment 23 once the passages 25 become opened which takes place as soon as the conical portion 21 of the piston rod 16 is withdrawn from the conical part of the bore 22.
- the stroke of the piston 15, and thereby the quantity of glue or similar material which can be ejected. can be selected by appropriate positioning of the screw 19, it will be appreciated, of course. that the more rapid the succession of expelling incidents takes place, the more rapidly the next-following quantity of glue must be admitted into the compartment 23, and this is assured by the suction effect resulting from withdrawal of the piston 15 to its retracted position.
- the passages 25 are provided in the piston 15, it will be appreciated that other solutions can be found within the concept of the present invention.
- the piston rod 16 itself may be provided with an axial channel which is open in the compartment 23 and which at its upper end, that is when the piston 15 is in its lower position. terminates in the region of the conical portion 21 of the piston rod 16 so as to be opened and closed in the same manner in which the passages 25 in the piston 15 are opened and closed.
- These passages 25 in the piston 15 can then of course be omitted.
- a dispensing device particularly for applying a bonding agent, comprising cylinder means having an elongated internal chamber provided with two end walls; dispensing nozzle means having a nozzle passage communicating with said chamber at one of said end walls; a piston rod extending longitudinally through said chamber; a piston surrounding said piston rod and slidable part of the distance between a first and a sec ond position together with said piston rod and part of the distance relative to said piston rod.
- said piston dividing said chamber into two compartments located at opposite axial sides of the piston; passage means which is open and connects said compartments when said piston slides reiative to said piston rod in one direction until said piston is in said first position, and closed when said piston rod and piston slide relative to one another in an opposite direction until said piston is in said second position; supply means communicating with said chamber intermediate said piston and the other of said end walls for supplying material to be dispensed; and valve means interposed in said nozzle passage, including a valve body responsive to the pressure of material resulting from movement of said piston toward said second position for opening said nozzle passage, and a biasing spring urging said valve body to normally close said passage.
Landscapes
- Coating Apparatus (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US34314173 US3828986A (en) | 1972-02-11 | 1973-03-20 | Dispensing device with abrupt ejection terminating means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH217871A CH556692A (de) | 1971-02-15 | 1971-02-15 | Spritzpistole zum aufspritzen von leim. |
Publications (1)
Publication Number | Publication Date |
---|---|
US3851801A true US3851801A (en) | 1974-12-03 |
Family
ID=4227706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00225421A Expired - Lifetime US3851801A (en) | 1971-02-15 | 1972-02-11 | Dispensing device having lost motion piston pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US3851801A (de) |
CH (1) | CH556692A (de) |
DE (1) | DE2205740A1 (de) |
FR (1) | FR2125922A5 (de) |
Cited By (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3942686A (en) * | 1973-05-02 | 1976-03-09 | Involvo Ag | Glueing device |
US4449650A (en) * | 1981-11-19 | 1984-05-22 | Censor Patent- Und Versuchs-Anstalt | Metering pump especially for volatile materials |
US4613062A (en) * | 1984-04-17 | 1986-09-23 | Continental Can Company, Inc. | Hot melt material dispenser |
US4632278A (en) * | 1985-11-26 | 1986-12-30 | Northern Teleco M Limited | Dispensing cylinder with cylindrical heater |
US4771726A (en) * | 1987-05-04 | 1988-09-20 | Fitch Jr Clifford E | Apparatus for dispensing flowable materials |
EP0294197A2 (de) * | 1987-06-03 | 1988-12-07 | Loctite Corporation | Abgabevorrichtung ohne Dichtung |
US4793524A (en) * | 1981-04-30 | 1988-12-27 | American Monitor Corporation | Integrated reagent container and metered dispenser means |
US5107907A (en) * | 1990-08-24 | 1992-04-28 | U.S.A., Inc. Hema | Two-stage product filling apparatus |
US5320250A (en) * | 1991-12-02 | 1994-06-14 | Asymptotic Technologies, Inc. | Method for rapid dispensing of minute quantities of viscous material |
EP0869554A2 (de) * | 1997-03-31 | 1998-10-07 | Nordson Corporation | Spenderpumpe zur Verkapselung von integrierten Schaltungen |
US20010038890A1 (en) * | 1999-03-19 | 2001-11-08 | Buazza Omar M. | Plastic lens systems, compositions, and methods |
US20030094714A1 (en) * | 1998-09-25 | 2003-05-22 | Buazza Omar M. | Plastic lens systems and compositions |
US20030146527A1 (en) * | 2000-03-30 | 2003-08-07 | Q2100, Inc. | Apparatus and system for the production of plastic lenses |
US6612828B2 (en) | 2001-02-20 | 2003-09-02 | Q2100, Inc. | Fill system with controller for monitoring use |
US6655946B2 (en) | 2001-02-20 | 2003-12-02 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a controller for conveyor and curing units |
US6676399B1 (en) | 2001-02-20 | 2004-01-13 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having sensors for tracking mold assemblies |
US6676398B2 (en) | 2001-02-20 | 2004-01-13 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a prescription reader |
US6698708B1 (en) | 2000-03-30 | 2004-03-02 | Q2100, Inc. | Gasket and mold assembly for producing plastic lenses |
US6702564B2 (en) | 2001-02-20 | 2004-03-09 | Q2100, Inc. | System for preparing an eyeglass lens using colored mold holders |
US6709257B2 (en) | 2001-02-20 | 2004-03-23 | Q2100, Inc. | Eyeglass lens forming apparatus with sensor |
US6712596B1 (en) | 1997-07-31 | 2004-03-30 | Q2100, Inc. | System for producing ultraviolet blocking lenses |
US6712331B2 (en) | 2001-02-20 | 2004-03-30 | Q2100, Inc. | Holder for mold assemblies with indicia |
US6716375B1 (en) | 2000-03-30 | 2004-04-06 | Q2100, Inc. | Apparatus and method for heating a polymerizable composition |
US6723260B1 (en) | 2000-03-30 | 2004-04-20 | Q2100, Inc. | Method for marking a plastic eyeglass lens using a mold assembly holder |
US6726463B2 (en) | 2001-02-20 | 2004-04-27 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a dual computer system controller |
US6752613B2 (en) | 2001-02-20 | 2004-06-22 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a controller for initiation of lens curing |
US6758663B2 (en) | 2001-02-20 | 2004-07-06 | Q2100, Inc. | System for preparing eyeglass lenses with a high volume curing unit |
US6790024B2 (en) | 2001-02-20 | 2004-09-14 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having multiple conveyor systems |
US6790022B1 (en) | 2001-02-20 | 2004-09-14 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a movable lamp mount |
US6840752B2 (en) | 2001-02-20 | 2005-01-11 | Q2100, Inc. | Apparatus for preparing multiple eyeglass lenses |
US6875005B2 (en) | 2001-02-20 | 2005-04-05 | Q1200, Inc. | Apparatus for preparing an eyeglass lens having a gating device |
US6893245B2 (en) | 2001-02-20 | 2005-05-17 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a computer system controller |
US6899831B1 (en) | 2001-02-20 | 2005-05-31 | Q2100, Inc. | Method of preparing an eyeglass lens by delayed entry of mold assemblies into a curing apparatus |
US20050184086A1 (en) * | 2004-02-24 | 2005-08-25 | Nordson Corporation | Method and system for supporting and/or aligning components of a liquid dispensing system |
US6962669B2 (en) | 2001-02-20 | 2005-11-08 | Q2100, Inc. | Computerized controller for an eyeglass lens curing apparatus |
US7004740B2 (en) | 2001-02-20 | 2006-02-28 | Q2100, Inc. | Apparatus for preparing an eyeglass lens having a heating system |
US7011773B2 (en) | 2001-02-20 | 2006-03-14 | Q2100, Inc. | Graphical interface to display mold assembly position in a lens forming apparatus |
US7025910B2 (en) | 2001-02-20 | 2006-04-11 | Q2100, Inc | Method of entering prescription information |
US7037449B2 (en) | 2001-02-20 | 2006-05-02 | Q2100, Inc. | Method for automatically shutting down a lens forming apparatus |
US7044429B1 (en) | 2002-03-15 | 2006-05-16 | Q2100, Inc. | Methods and systems for coating eyeglass lens molds |
US7045081B2 (en) | 2001-02-20 | 2006-05-16 | Q2100, Inc. | Method of monitoring components of a lens forming apparatus |
US7051290B2 (en) | 2001-02-20 | 2006-05-23 | Q2100, Inc. | Graphical interface for receiving eyeglass prescription information |
US7052262B2 (en) | 2001-02-20 | 2006-05-30 | Q2100, Inc. | System for preparing eyeglasses lens with filling station |
US7060208B2 (en) | 2001-02-20 | 2006-06-13 | Q2100, Inc. | Method of preparing an eyeglass lens with a controller |
US20060144849A1 (en) * | 2004-11-11 | 2006-07-06 | Martin Bezema | Method and system for aligning components of a liquid dispensing system |
US7074352B2 (en) | 2001-02-20 | 2006-07-11 | Q2100, Inc. | Graphical interface for monitoring usage of components of a lens forming apparatus |
US7083404B2 (en) | 2001-02-20 | 2006-08-01 | Q2100, Inc. | System for preparing an eyeglass lens using a mold holder |
US7124995B2 (en) | 2001-02-20 | 2006-10-24 | Q2100, Inc. | Holder for mold assemblies and molds |
US7139636B2 (en) | 2001-02-20 | 2006-11-21 | Q2100, Inc. | System for preparing eyeglass lenses with bar code reader |
US20090261121A1 (en) * | 2008-04-17 | 2009-10-22 | Nordson Corporation | Valveless liquid dispenser |
USRE42029E1 (en) | 2004-04-02 | 2011-01-18 | Nordson Corporation | Intake portion of a liquid dispensing valve |
US20140252041A1 (en) * | 2011-10-07 | 2014-09-11 | Musashi Engineering, Inc. | Liquid material discharge apparatus and method |
US8955718B2 (en) | 2012-10-31 | 2015-02-17 | Gojo Industries, Inc. | Foam pumps with lost motion and adjustable output foam pumps |
US9038862B2 (en) | 2013-01-23 | 2015-05-26 | Gojo Industries, Inc. | Pumps with container vents |
US9179808B2 (en) | 2012-08-30 | 2015-11-10 | Gojo Industries, Inc. | Horizontal pumps, refill units and foam dispensers |
US9204765B2 (en) | 2012-08-23 | 2015-12-08 | Gojo Industries, Inc. | Off-axis inverted foam dispensers and refill units |
US9307871B2 (en) | 2012-08-30 | 2016-04-12 | Gojo Industries, Inc. | Horizontal pumps, refill units and foam dispensers |
US9392913B2 (en) | 2013-04-25 | 2016-07-19 | Gojo Industries, Inc. | Horizontal pumps with reduced part count, refill units and dispensers |
US20160361734A1 (en) | 2015-06-11 | 2016-12-15 | Nordson Corporation | Cartridge type fluid dispensing apparatus and methods |
US9578996B2 (en) | 2014-01-15 | 2017-02-28 | Gojo Industries, Inc. | Pumps with angled outlets, refill units and dispensers having angled outlets |
US9596963B2 (en) | 2014-07-30 | 2017-03-21 | Gojo Industries, Inc. | Vented refill units and dispensers having vented refill units |
US9648992B2 (en) | 2013-12-19 | 2017-05-16 | Gojo Industries, Inc. | Pumps with vents to vent inverted containers and refill units having non-collapsing containers |
US9737177B2 (en) | 2014-05-20 | 2017-08-22 | Gojo Industries, Inc. | Two-part fluid delivery systems |
US9854947B2 (en) | 2012-08-23 | 2018-01-02 | Gojo Industries, Inc. | Horizontal pumps, refill units and foam dispensers with integral air compressors |
US10160590B2 (en) | 2014-02-24 | 2018-12-25 | Gojo Industries, Inc. | Vented non-collapsing containers, dispensers and refill units having vented non-collapsing containers |
US10675653B2 (en) | 2017-02-07 | 2020-06-09 | Nordson Corporation | Motorized cartridge type fluid dispensing apparatus and system |
US10954929B2 (en) * | 2018-09-19 | 2021-03-23 | Mueller International, Llc | Material dispensing system with gas removal |
US11344903B2 (en) * | 2016-02-22 | 2022-05-31 | Musashi Engineering, Inc. | Liquid material discharge device comprising booster circuit |
Citations (9)
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---|---|---|---|---|
US2885734A (en) * | 1955-06-24 | 1959-05-12 | Wucher Roland | Apparatus for moulding plastic materials |
FR1249159A (fr) * | 1959-03-18 | 1960-12-23 | Dispositif d'arrêt de refluement pour machines à vis sans fin d'injection de matière thermoplastique | |
US3007202A (en) * | 1958-12-22 | 1961-11-07 | Wucher Roland | Apparatus for injection moulding of plastic materials |
US3023936A (en) * | 1959-06-26 | 1962-03-06 | Marien Metal Products Co | Dispensing pump with venting means |
US3091233A (en) * | 1960-08-03 | 1963-05-28 | Kamborian Jacob S | Adhesive dispensing apparatus |
US3221937A (en) * | 1963-06-03 | 1965-12-07 | Jacob S Kamborian | Cement extruding mechanism |
US3398435A (en) * | 1965-10-22 | 1968-08-27 | Inv S Finance Corp | Method and apparatus for molding plastics |
US3531023A (en) * | 1968-04-30 | 1970-09-29 | Mercer Corp | Process and apparatus for melting and dispensing thermoplastic material |
US3622050A (en) * | 1969-02-13 | 1971-11-23 | Anchor Hocking Corp | Metered compound applying nozzle |
-
1971
- 1971-02-15 CH CH217871A patent/CH556692A/de not_active IP Right Cessation
-
1972
- 1972-02-08 DE DE19722205740 patent/DE2205740A1/de active Pending
- 1972-02-11 US US00225421A patent/US3851801A/en not_active Expired - Lifetime
- 1972-02-15 FR FR7205005A patent/FR2125922A5/fr not_active Expired
Patent Citations (9)
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US2885734A (en) * | 1955-06-24 | 1959-05-12 | Wucher Roland | Apparatus for moulding plastic materials |
US3007202A (en) * | 1958-12-22 | 1961-11-07 | Wucher Roland | Apparatus for injection moulding of plastic materials |
FR1249159A (fr) * | 1959-03-18 | 1960-12-23 | Dispositif d'arrêt de refluement pour machines à vis sans fin d'injection de matière thermoplastique | |
US3023936A (en) * | 1959-06-26 | 1962-03-06 | Marien Metal Products Co | Dispensing pump with venting means |
US3091233A (en) * | 1960-08-03 | 1963-05-28 | Kamborian Jacob S | Adhesive dispensing apparatus |
US3221937A (en) * | 1963-06-03 | 1965-12-07 | Jacob S Kamborian | Cement extruding mechanism |
US3398435A (en) * | 1965-10-22 | 1968-08-27 | Inv S Finance Corp | Method and apparatus for molding plastics |
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Cited By (94)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3942686A (en) * | 1973-05-02 | 1976-03-09 | Involvo Ag | Glueing device |
US4793524A (en) * | 1981-04-30 | 1988-12-27 | American Monitor Corporation | Integrated reagent container and metered dispenser means |
US4449650A (en) * | 1981-11-19 | 1984-05-22 | Censor Patent- Und Versuchs-Anstalt | Metering pump especially for volatile materials |
US4613062A (en) * | 1984-04-17 | 1986-09-23 | Continental Can Company, Inc. | Hot melt material dispenser |
US4632278A (en) * | 1985-11-26 | 1986-12-30 | Northern Teleco M Limited | Dispensing cylinder with cylindrical heater |
US4771726A (en) * | 1987-05-04 | 1988-09-20 | Fitch Jr Clifford E | Apparatus for dispensing flowable materials |
EP0294197A2 (de) * | 1987-06-03 | 1988-12-07 | Loctite Corporation | Abgabevorrichtung ohne Dichtung |
EP0294197A3 (en) * | 1987-06-03 | 1990-03-07 | Loctite Corporation | Sealless dispensing mechanism |
US5107907A (en) * | 1990-08-24 | 1992-04-28 | U.S.A., Inc. Hema | Two-stage product filling apparatus |
US5320250A (en) * | 1991-12-02 | 1994-06-14 | Asymptotic Technologies, Inc. | Method for rapid dispensing of minute quantities of viscous material |
US5505777A (en) * | 1992-11-19 | 1996-04-09 | Asymptotic Technologies, Inc. | Computer controlled viscous fluid dispensing system |
EP0869554A3 (de) * | 1997-03-31 | 2000-03-08 | Nordson Corporation | Spenderpumpe zur Verkapselung von integrierten Schaltungen |
US5992688A (en) * | 1997-03-31 | 1999-11-30 | Nordson Corporation | Dispensing method for epoxy encapsulation of integrated circuits |
US5927560A (en) * | 1997-03-31 | 1999-07-27 | Nordson Corporation | Dispensing pump for epoxy encapsulation of integrated circuits |
EP0869554A2 (de) * | 1997-03-31 | 1998-10-07 | Nordson Corporation | Spenderpumpe zur Verkapselung von integrierten Schaltungen |
US6712596B1 (en) | 1997-07-31 | 2004-03-30 | Q2100, Inc. | System for producing ultraviolet blocking lenses |
US20030094714A1 (en) * | 1998-09-25 | 2003-05-22 | Buazza Omar M. | Plastic lens systems and compositions |
US6926510B2 (en) | 1998-09-25 | 2005-08-09 | Q2100, Inc. | Plastic lens systems and compositions |
US20030203065A1 (en) * | 1998-09-25 | 2003-10-30 | Q2100, Inc. | Plastic lens systems, methods and apparatus |
US20010047217A1 (en) * | 1999-03-19 | 2001-11-29 | Optical Dynamics Corp. | Plastic lens systems, compositions, and methods |
US7079920B2 (en) | 1999-03-19 | 2006-07-18 | Q2100, Inc. | Plastic lens systems, compositions, and methods |
US6557734B2 (en) * | 1999-03-19 | 2003-05-06 | Q2100, Inc. | Plastic lens systems, compositions, and methods |
US6964479B2 (en) | 1999-03-19 | 2005-11-15 | Q1200, Inc. | Plastic lens system, compositions, and methods |
US20020018824A1 (en) * | 1999-03-19 | 2002-02-14 | Buazza Omar M. | Plastic lens systems, compositions, and methods |
US20010038890A1 (en) * | 1999-03-19 | 2001-11-08 | Buazza Omar M. | Plastic lens systems, compositions, and methods |
US6729866B2 (en) | 1999-03-19 | 2004-05-04 | Q2100, Inc. | Plastic lens systems |
US20030146527A1 (en) * | 2000-03-30 | 2003-08-07 | Q2100, Inc. | Apparatus and system for the production of plastic lenses |
US6698708B1 (en) | 2000-03-30 | 2004-03-02 | Q2100, Inc. | Gasket and mold assembly for producing plastic lenses |
US6723260B1 (en) | 2000-03-30 | 2004-04-20 | Q2100, Inc. | Method for marking a plastic eyeglass lens using a mold assembly holder |
US6716375B1 (en) | 2000-03-30 | 2004-04-06 | Q2100, Inc. | Apparatus and method for heating a polymerizable composition |
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Also Published As
Publication number | Publication date |
---|---|
FR2125922A5 (de) | 1972-09-29 |
DE2205740A1 (de) | 1972-08-31 |
CH556692A (de) | 1974-12-13 |
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