US3794301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for mixing and dispensing
Assignee: USM Corp
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Filing: 1972-10-13
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Granted: 1974-02-26
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Expires: 1992-10-13
Abstract
Abstract Method and apparatus for the mixing and dispensing of a multiple component material composition wherein said component materials are supplied substantially continuously in controlled ratio in a substantially concurrent mixing and dispensing cycle, and said cycle is repeatable to form successive mixing and dispensing as required in processes such as mold filling.
Inventors
- 👤 R Simmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/603
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
131 words
A method of mixing and dispensing a multicomponent material wherein the component ingredients are supplied in measured relative proportions to a mixing chamber, comprising the steps of: metering a first component ingredient to said mixing chamber; metering a second component ingredient to said mixing chamber, substantially concurrently with said first ingredient; measuring the relative proportion of said ingredients being supplied to said chamber; comparing said relative proportions of said components to a predetermined standard; controlling said metering of a component ingredient so as to maintain said relative proportions at said predetermined standard; mixing said ingredients substantially concurrently with the metering of said ingredients to said mixing chamber; dispensing said mixed ingredients from said chamber substantially concurrently with said metering said component ingredients while said relative proportion is at said predetermined standard.
Claim 2
Independent Claim
131 words
A method of mixing and dispensing a multicomponent material wherein the component ingredients are supplied in measured relative proportions to a mixing chamber, comprising the steps of: metering a first component ingredient to said mixing chamber; metering a second component ingredient to said mixing chamber, substantially concurrently with said first ingredient; measuring the relative proportion of said ingredients being supplied to said chamber; comparing said relative proportions of said components to a predetermined standard; controlling said metering of a component ingredient so as to maintain said relative proportions at said predetermined standard; mixing said ingredients substantially concurrently with the metering of said ingredients to said mixing chamber; dispensing said mixed ingredients from said chamber substantially concurrently with said metering said component ingredients while said relative proportion is at said predetermined standard.
Claim 3
Dependent Claim
88 words
A method according to claim 1 wherein said mixed materials are reaction producing and are intermittently dispensed in measured quantity to a receptacle such as a mold wherein the operative mixing and dispensing steps include diluting said relative proportion of the residuum said constituent ingredients in said mixing chamber subsequent to the dispensing of said measured quantity to said receptacle with a predetermined quantity of an ingredient, thereby quenching the reaction of said mixed materials in said chamber by substantially changing the relative proportion of said component ingredients.
Claim 4
Dependent Claim
63 words
A METHOD according to claim 2 wherein said mixing chamber contains the ingredients of said quenched reaction and including the step of returning said quenched reaction to the predetermined relative proportion of reactive ingredients by supplying a predetermined quantity of the other of said component inGredients of said reaction producing mixture, prior to said supplying of component ingredients for concurrent mixing and dispensing.
Claim 5
Dependent Claim
51 words
A method according to claim 3 including the step of decreasing the volume of said mixing chamber to a predetermined minimum value immediately prior to completion of filling said receptacle and subsequently increasing said mixing chamber volume subsequent to said dispensing and concurrently with said supplying of said diluting component ingredient.
Claim 6
Dependent Claim
38 words
A method according to claim 3 includingthe step of increasing the volume of said mixing chamber concurrently with the metering of said other component ingredients during the reestablishing of said predetermined component ingredient relative proportions and reacting thereof.
Claim 7
Dependent Claim
49 words
A method according to claim 1 including the steps of varying the volume of said mixing chamber being supplied with said metered component ingredients by increasing said chamber volume during the steps of measuring, and comparing said relative proportions and controlling said metered rate to obtain said predetermined standard.
Claim 8
Dependent Claim
46 words
A method according to claim 6 including the step of varying the volume of said mixing chamber to a predetermined volume concurrently with said dispensing whereby said chamber volume, during the mixing and dispensing step will be at a volume wherein optimum mixing may be achieved.
Claim 9
Dependent Claim
118 words
Apparatus for dispensing a multicomponent composition provided by the mixing together of at least two component ingredients comprising: a mixing chamber; means for supplying a first component ingredient to said chamber; means for supplying a second component ingredient to said chamber; means for metering the first component supplied said chamber; means for metering the second component supplied said chamber; means for comparing the measurements of said first and second metering means; means for controlling at least one of said supply means to cause said proportions of said measured supply to meet a predetermined standard; means for dispensing said composition; means responsive to said comparison means to cause said composition to be dispensed when said predetermined standard is met.
Claim 10
Dependent Claim
118 words
Apparatus for dispensing a multicomponent composition provided by the mixing together of at least two component ingredients comprising: a mixing chamber; means for supplying a first component ingredient to said chamber; means for supplying a second component ingredient to said chamber; means for metering the first component supplied said chamber; means for metering the second component supplied said chamber; means for comparing the measurements of said first and second metering means; means for controlling at least one of said supply means to cause said proportions of said measured supply to meet a predetermined standard; means for dispensing said composition; means responsive to said comparison means to cause said composition to be dispensed when said predetermined standard is met.
Claim 11
Dependent Claim
37 words
Apparatus according to claim 8 including means for varying the volume of said mixing chamber and means controlling said varying means to cause said chamber volume to correspond to the volume of components added to said chamber.
Claim 12
Dependent Claim
35 words
Apparatus according to claim 9 wherein said means controlling said chamber volume is responsive to said comparison means to cause said volume to vary to a predetermined mixing standard during said dispensing of said composition.
Claim 13
Dependent Claim
20 words
Apparatus according to claim 9 including means to control said supply means to dispense a predetermined quantity of multicomponent composition.
Claim 14
Dependent Claim
44 words
Apparatus according to claim 11 wherein said means to control said chamber volume is responsive to said means to control said quantity of composition to cause said chamber volume to reach a predetermined minimum volume when said predetermined quantity of composition has been dispensed.
Claim 15
Dependent Claim
77 words
Apparatus according to claim 8 including means to inactivate said dispensing means, means to inactivate said means controlling one of said supply means to cause said comparison means to meet a predetermined standard; and means to supply a predetermined quantity of one of said ingredients to said mixing chamber subsequent to inactivation of said above named means, whereby at the end of dispensing, the composition remaining in said chamber is diluted with one of said component ingredients.
Claim 16
Dependent Claim
83 words
Apparatus according to claim 13 adapted to restore said diluted composition remaining in said chamber to a ratio of components to meet predetermined standard prior to further mixing and dispensing including means to inactivate the supply means of said dilute component, means to supply a predetermined quantity of the other of said component ingredients to said chamber to cause said proportions of said measured supply to said cHamber to meet said predetermined standard and means to reactivate said inactivated supply and comparison means.
Claim 17
Dependent Claim
182 words
Apparatus according to claim 8 wherein said means for metering said first component ingredient includes means for generating a signal directly proportional to said first metered supply; said means for metering said second component ingredient includes means for generating a signal directly proportional to said second metered supply; said means for comparing said measurements of said metering means include means for comparing said signals and generating a signal directly proportional to the difference of said first and second supply signals; said means for supplying said first component ingredient to said chamber includes means for supplying said component at a predetermined rate; said means for controlling at least one of said supply means to cause said proportions of said measured supply to meet a predetermined standard include said control means adapted to be responsive to a driving signal being the sum of said signal proportional to the difference of said first and second supply signals and a signal directly proportional to a constant value which would otherwise cause said controllable supply to be metered at a rate predetermined to meet said predetermined standard.
Claim 18
Independent Claim
270 words
A method of mixing and dispensing successive shots of a multi-component material wherein the component ingredients are supplied in measured relative proportions to a mixing chamber comprising: a first stage of substantially continuously metering a first component ingredient to said mixing chamber; substantially continuously metering a second component ingredient to said mixing chamber in predetermined relative proportion to said first component ingredient; mixing said component ingredients substantially concurrently with the metering of said ingredients to said mixing chamber, dispensing said mixing ingredients from said chamber substantially concurrently with said metering of said component ingredients while said relative proportion is at said predetermined proportion; a second stage of substantially concurrently cutting off entry of said first and second component ingredients and reducing the volume of said chamber to expel a major portion of said mixed ingredients from said chamber; a third stage of cutting off discharge of mixed ingredients from said chamber; metering a predetermined amount of one of said component ingredients into said chamber and mixing it with mixed components remaining in said chamber to dilute the relative proportion of the other ingredient in the mixture in said mixing chamber and concurrently increasing the volume of said mixing chamber to accept said amount of said one component; and a fourth stage of metering and mixing a quantity of said other component ingredient to bring the relative proportion of said first and second component ingredients in the mixture in said chamber to said predetermined standard and concurrently increasing the volume of said mixing chamber to accept said quantity of said other component ingredient prior to repeating the stages of the process.
Claim 19
Independent Claim
270 words
A method of mixing and dispensing successive shots of a multi-component material wherein the component ingredients are supplied in measured relative proportions to a mixing chamber comprising: a first stage of substantially continuously metering a first component ingredient to said mixing chamber; substantially continuously metering a second component ingredient to said mixing chamber in predetermined relative proportion to said first component ingredient; mixing said component ingredients substantially concurrently with the metering of said ingredients to said mixing chamber, dispensing said mixing ingredients from said chamber substantially concurrently with said metering of said component ingredients while said relative proportion is at said predetermined proportion; a second stage of substantially concurrently cutting off entry of said first and second component ingredients and reducing the volume of said chamber to expel a major portion of said mixed ingredients from said chamber; a third stage of cutting off discharge of mixed ingredients from said chamber; metering a predetermined amount of one of said component ingredients into said chamber and mixing it with mixed components remaining in said chamber to dilute the relative proportion of the other ingredient in the mixture in said mixing chamber and concurrently increasing the volume of said mixing chamber to accept said amount of said one component; and a fourth stage of metering and mixing a quantity of said other component ingredient to bring the relative proportion of said first and second component ingredients in the mixture in said chamber to said predetermined standard and concurrently increasing the volume of said mixing chamber to accept said quantity of said other component ingredient prior to repeating the stages of the process.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |