Patent US668879A successfully refreshed from Google Patents.
Patent US3632022A successfully refreshed from Google Patents.
US3632022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding machinery
Assignee: USM Corp
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Filing: 1969-10-06
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Granted: 1972-01-04
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Expires: 1989-10-06
Abstract
Abstract Machinery for molding articles including a device for metering, mixing and dispensing a measured quantity of multiple component mixture to a plurality of molds. The device comprises a plurality of chambers each having a volume variable in response to fluid entering the chamber. One of the chambers contains a mixing element and dispensing means for the mixture. The constituent materials are metered into the other chambers, from which they are sequentially sent into the mixing chamber in measured quantity to be mixed and dispensed therefrom.
Inventors
- 👤 Robert C Simmonds Jr
- 👤 Andrew J Gilbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:27
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7174; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/603; B01F35/80; B01F35/88; B01F35/882; B01F35/8822
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
252 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering or leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, a storage tank for each of the components to be mixed, and conduit means connecting each of said other chambers with a respective storage tank, a first conduit connecting a first of said other chambers with said one chamber, and a second conduit connecting a second of said other chambers with said one chamber each of said first and second chambers having an independently movable piston slidably disposed therein connected to a piston rod extending from said chamber, power means connected to each of said first and second chamber pistons for causing flow of fluid from a respective chamber to said one chamber and a first switch means having an actuator located for contact by a portion of said piston rod extending from said first chamber, and a second switch means having an actuator located for contact by a portion of said piston rod extending from said second chamber, said first and second switch means further being operatively connected to said power means whereby the flow of fluid from said first chamber to said one chamber and from said second chamber to said one chamber is terminated by movement of the piston in the respective first and second chambers.
Claim 2
Dependent Claim
252 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering or leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, a storage tank for each of the components to be mixed, and conduit means connecting each of said other chambers with a respective storage tank, a first conduit connecting a first of said other chambers with said one chamber, and a second conduit connecting a second of said other chambers with said one chamber each of said first and second chambers having an independently movable piston slidably disposed therein connected to a piston rod extending from said chamber, power means connected to each of said first and second chamber pistons for causing flow of fluid from a respective chamber to said one chamber and a first switch means having an actuator located for contact by a portion of said piston rod extending from said first chamber, and a second switch means having an actuator located for contact by a portion of said piston rod extending from said second chamber, said first and second switch means further being operatively connected to said power means whereby the flow of fluid from said first chamber to said one chamber and from said second chamber to said one chamber is terminated by movement of the piston in the respective first and second chambers.
Claim 3
Dependent Claim
139 words
Apparatus as set forth in claim 1 which further includes an elongated member having each of said first and second switch means connected thereto, said member further being pivotally supported for movement toward and away from said first and second chambers to cause movement of said first and second switch means toward and away from said chambers such that movement of said member is effectIve to change the volume of fluid metered into said one chamber from each of said chambers when said pair of switch means are contacted by a respective piston rod to terminate flow of fluid into said one chamber, and said first and second switch means being connected to said member such that the ratio of the volume of fluid metered from each of said chambers is maintained substantially constant during movement of said member.
Claim 4
Dependent Claim
63 words
Apparatus as set forth in claim 2, wherein at least one of said first and second switch means is slidably connected relative to said member for adjustable movement along the length of said member such that the ratio of the volume of fluid metered from each of said chambers is readily variable by movement of said one switch means relative to the other.
Claim 5
Dependent Claim
33 words
Apparatus as set forth in claim 3, which further includes drive means connected to said elongated member for moving said member about said pivotal connection toward and away from said pair of chambers.
Claim 6
Dependent Claim
53 words
Apparatus as set forth in claim 4, which further includes valve means in said conduit means connecting said other chambers with said one chamber and means for automatically opening and closing said valve means sequentially to cause flow of fluid to said one chamber from only one other chamber at a given time.
Claim 7
Dependent Claim
161 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering and leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, storage means for each of the components to be mixed, conduit means connecting each of said other chambers with a component storage means and with said one chamber whereby said chambers and said conduit connecting means define a substantially closed flow circuit having a volume expandable in response to fluid entering from said storage means and contractable in response to fluid injected into a mold, valve means in said conduit means connecting said other chambers with said one chamber, and means for automatically opening and closing said valve means sequentially to cause flow of fluid to said one chamber from only one other chamber at a given time.
Claim 8
Dependent Claim
161 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering and leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, storage means for each of the components to be mixed, conduit means connecting each of said other chambers with a component storage means and with said one chamber whereby said chambers and said conduit connecting means define a substantially closed flow circuit having a volume expandable in response to fluid entering from said storage means and contractable in response to fluid injected into a mold, valve means in said conduit means connecting said other chambers with said one chamber, and means for automatically opening and closing said valve means sequentially to cause flow of fluid to said one chamber from only one other chamber at a given time.
Claim 9
Dependent Claim
173 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering and leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, storage means for each of the components to be mixed, conduit means connecting each of said other chambers with a component storage means and with said one chamber whereby said chambers and said conduit connecting means define a substantially closed flow circuit having a volume expandable in response to fluid entering from said storage means and contractable in response to fluid injected into a mold, independent power means operatively associated with each of said other chambers for causing flow of fluid from each of said other chambers into said one chamber and means responsive to the volume change of each of said other chambers to shut down its respective power means to terminate flow of fluid into said one chamber.
Claim 10
Dependent Claim
173 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering and leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, storage means for each of the components to be mixed, conduit means connecting each of said other chambers with a component storage means and with said one chamber whereby said chambers and said conduit connecting means define a substantially closed flow circuit having a volume expandable in response to fluid entering from said storage means and contractable in response to fluid injected into a mold, independent power means operatively associated with each of said other chambers for causing flow of fluid from each of said other chambers into said one chamber and means responsive to the volume change of each of said other chambers to shut down its respective power means to terminate flow of fluid into said one chamber.
Claim 11
Dependent Claim
217 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering and leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, storage means for each of the components to be mixed, conduit means connecting each of said other chambers with a component storage means and with said one chamber whereby said chambers and said conduit connecting means define a substantially closed flow circuit having a volume expandablE in response to fluid entering from said storage means and contractable in response to fluid injected into a mold, each of said plurality of variable volume chambers comprising structure forming a cylindrical bore having an independently movable piston slidably disposed therein, independent power means connected to each of said pistons in said other chambers for causing flow of fluid from each of said other chambers into said one chamber bore to expand the chamber volume by moving the piston in said one chamber bore, and means responsive to movement of each of said pistons in each of said other chamber bores to shut down its respective power means to terminate flow of fluid into said one chamber bore.
Claim 12
Dependent Claim
217 words
Apparatus for metering, mixing and dispensing multiple component mixtures comprising a plurality of chambers each having a volume independently variable in response to fluid entering and leaving a chamber, one of said chambers having means for mixing the components and means for injecting the mixture from the one chamber into a mold assembly, storage means for each of the components to be mixed, conduit means connecting each of said other chambers with a component storage means and with said one chamber whereby said chambers and said conduit connecting means define a substantially closed flow circuit having a volume expandablE in response to fluid entering from said storage means and contractable in response to fluid injected into a mold, each of said plurality of variable volume chambers comprising structure forming a cylindrical bore having an independently movable piston slidably disposed therein, independent power means connected to each of said pistons in said other chambers for causing flow of fluid from each of said other chambers into said one chamber bore to expand the chamber volume by moving the piston in said one chamber bore, and means responsive to movement of each of said pistons in each of said other chamber bores to shut down its respective power means to terminate flow of fluid into said one chamber bore.
Claim 13
Dependent Claim
53 words
Apparatus as set forth in claim 8, which further includes valve means in said conduit means connecting said one chamber with said other chambers and means for automatically opening and closing said valve means sequentially to cause flow of fluid to said one chamber from only one other chamber at a given time.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |