US3909289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck cleaning methods
Assignee: Anchor Hocking LLC
•
Filing: 1973-07-12
•
Granted: 1975-09-30
•
Expires: 1993-07-12
Abstract
Abstract Methods for removing plastic coating material, such as ''''Surlyn, '''' from chucks which support and transfer glass articles through a protective plastic coating process line, including a step of impinging a flame onto the chucks as they move at line speed. The flame burns on a fuel mixture of about one part natural gas and about four parts oxygen. The chucks are then brushed, quenched with a water spray, and subjected to a stream of pressure air. The flame provided by the specific fuel mixture quickly burns and oxidizes the plastic material leaving only a minimal if any residue on the chuck surfaces.
Inventors
- 👤 Donald D Foucart
- 👤 Jon R Cottrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:32
CPC Classifications
B; B08; B08B; B08B7/00; B08B7/0064; B44; B44D; B44D3/00; B44D3/16; B44D3/166
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
76 words
A METHOD FOR RECOVERING A PROTECTIVE PLASTIC COATING MATERIAL FROM CHUCKS OF THE TYPE OPERATABLE TO SUPPORT AND CONVEY GLASSWARE THROUGH A PRODUCTIVE PLASTIC COATING PROCESS AT A PREDETERMINED SPEED, THE METHOD COMPRISING THE STEPS OF: IMPRINGING A FLAME, BURNING ON A NATURAL GAS-OXYGEN FUEL MIXTURE COMPRISING ABOUT ONE PART GAS AND ABOUT FOUR PARTS OXYGEN, ON SAID CHUCKS, WHILE SAID CHUCKS ARE MOVING AT SAID PREDETERMINED SPEED. THEREBY BURNING AND OXIDIZING SAID PROTECTIVE PLASTIC COAT-
Claim 2
Independent Claim
76 words
A METHOD FOR RECOVERING A PROTECTIVE PLASTIC COATING MATERIAL FROM CHUCKS OF THE TYPE OPERATABLE TO SUPPORT AND CONVEY GLASSWARE THROUGH A PRODUCTIVE PLASTIC COATING PROCESS AT A PREDETERMINED SPEED, THE METHOD COMPRISING THE STEPS OF: IMPRINGING A FLAME, BURNING ON A NATURAL GAS-OXYGEN FUEL MIXTURE COMPRISING ABOUT ONE PART GAS AND ABOUT FOUR PARTS OXYGEN, ON SAID CHUCKS, WHILE SAID CHUCKS ARE MOVING AT SAID PREDETERMINED SPEED. THEREBY BURNING AND OXIDIZING SAID PROTECTIVE PLASTIC COAT-
Claim 3
Independent Claim
100 words
A method of removing a protective plastic coating material from chucks of the type used to support and transfer glassware during a protective coating process, the method comprising the steps of; impinging a flame burning on a natural gas-oxygen mixture comprising about one part gas to about four parts oxygen on said chucks and thereby burning and oxidizing said plastic coating material, brushing any residue, remaining from said burning and oxidiation, from said chucks, cooling said chucks by applying relatively cool water to them, and blowing a stream of pressure air against said chucks to blow any remaining residue therefrom.
Claim 4
Independent Claim
100 words
A method of removing a protective plastic coating material from chucks of the type used to support and transfer glassware during a protective coating process, the method comprising the steps of; impinging a flame burning on a natural gas-oxygen mixture comprising about one part gas to about four parts oxygen on said chucks and thereby burning and oxidizing said plastic coating material, brushing any residue, remaining from said burning and oxidiation, from said chucks, cooling said chucks by applying relatively cool water to them, and blowing a stream of pressure air against said chucks to blow any remaining residue therefrom.
Claim 5
Independent Claim
149 words
A method of removing plastic coating material from chucks of the type used to support and transfer glass containers during a protective plastic coating process wherein a finely divided ionic copolymer material, which is formed from ethylene and methacrylic acid, is sprayed onto said containers by an electrostatic dry powder process and is then heat cured to form a protective plastic coating thereon, and wherein said containers are preheated while in said chucks and particles of said material adhere to said chucks, the method comprising the steps of; impinging a flame, burning on a fuel mixture of about one part natural gas and aboUt four parts oxygen, on selected chucks during said process at a time when said selected chucks are not supporting or transferring glassware, thereby burning and oxidizing said ionic copolymer material on said chucks, and thereafter burshing oxidized residue remaining on said chucks from said chucks.
Claim 6
Independent Claim
149 words
A method of removing plastic coating material from chucks of the type used to support and transfer glass containers during a protective plastic coating process wherein a finely divided ionic copolymer material, which is formed from ethylene and methacrylic acid, is sprayed onto said containers by an electrostatic dry powder process and is then heat cured to form a protective plastic coating thereon, and wherein said containers are preheated while in said chucks and particles of said material adhere to said chucks, the method comprising the steps of; impinging a flame, burning on a fuel mixture of about one part natural gas and aboUt four parts oxygen, on selected chucks during said process at a time when said selected chucks are not supporting or transferring glassware, thereby burning and oxidizing said ionic copolymer material on said chucks, and thereafter burshing oxidized residue remaining on said chucks from said chucks.
Claim 7
Dependent Claim
22 words
The method of claim 2 further comprising the subsequent steps of cooling said chucks and then blowing remaining residue from said chucks.
Claim 8
Independent Claim
132 words
A method of applying a protective plastic coating to glassware and of removing plastic material from glassware supporting chucks including the steps of; continuously conveying glassware from a loading station at a predetermined speed with supporting chucks, preheating said glassware whereby said chucks are also heated, applying a powdered material to coat said glassware, curing and treating said powdered coat to form a protective plastic coating on said glassware, releasing said glassware from selected chucks, and thereafter removing plastic material from said selected chucks by impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said selected chucks to burn and oxidize said plastic material, all while continuously moving said selected supporting apparatus toward said loading station at said predetermined speed.
Claim 9
Independent Claim
132 words
A method of applying a protective plastic coating to glassware and of removing plastic material from glassware supporting chucks including the steps of; continuously conveying glassware from a loading station at a predetermined speed with supporting chucks, preheating said glassware whereby said chucks are also heated, applying a powdered material to coat said glassware, curing and treating said powdered coat to form a protective plastic coating on said glassware, releasing said glassware from selected chucks, and thereafter removing plastic material from said selected chucks by impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said selected chucks to burn and oxidize said plastic material, all while continuously moving said selected supporting apparatus toward said loading station at said predetermined speed.
Claim 10
Dependent Claim
25 words
A method as in claim 4 including the further step of cooling said chucks, after impingement of said flame thereon, by quenching them with water.
Claim 11
Independent Claim
97 words
A method of removing plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid, from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of; impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 12
Independent Claim
97 words
A method of removing plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid, from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of; impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 13
Dependent Claim
28 words
A method as in claim 6 wherein said flame is impinged on said chucks for less than about 30 seconds to burn and oxidize the plastic coating material.
Claim 14
Dependent Claim
26 words
A method as in claim 7 including impinging said flame on said chucks for a time period of from about ten seconds to about 30 seconds.
Claim 15
Dependent Claim
19 words
A method as in claim 7 including brushing said chucks after said flame impingement to remove said oxidized material.
Claim 16
Dependent Claim
18 words
A method as in claim 9 wherein said brushing step includes rotating said chucks against fixed wire brushes.
Claim 17
Dependent Claim
23 words
A method as in claim 7 including impinging a stream of pressure air against said chucks to blow any remaining oxidized material therefrom.
Claim 18
Dependent Claim
23 words
A method as in claim 7 wherein said flame impingement step is performed when said chucks are empty and do not support glassware.
Claim 19
Independent Claim
100 words
A method of removing a protective plastic coating material comprising an ionic copolymer of alpha olefins and alpha, beta-ethylenically unsaturated carboxylic acids from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said coating material in order to remove it so as to maintain said chucks operational.
Claim 20
Independent Claim
100 words
A method of removing a protective plastic coating material comprising an ionic copolymer of alpha olefins and alpha, beta-ethylenically unsaturated carboxylic acids from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said coating material in order to remove it so as to maintain said chucks operational.
Claim 21
Independent Claim
99 words
A method of removing a protective plastic coating material selected from the group comprising polyethylene, polyvinyl chloride and ethylene vinyl acetate, from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gaS-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said coating material in order to remove it so as to maintain said chucks operational.
Claim 22
Independent Claim
99 words
A method of removing a protective plastic coating material selected from the group comprising polyethylene, polyvinyl chloride and ethylene vinyl acetate, from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gaS-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said coating material in order to remove it so as to maintain said chucks operational.
Claim 23
Dependent Claim
26 words
A method as in claim 15 including impinging said flame on said chucks for a predetermined period of from about ten seconds to about thirty seconds.
Claim 24
Dependent Claim
19 words
A method as in claim 16 including the step of brushing said chucks to remove oxidized plastic material residue.
Claim 25
Independent Claim
127 words
A method of removing a protective plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, and are unconfined by walls so that heat, sufficient to oxidize said material, is not concentrated on said chucks by any means other than said direct flame impingement, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 26
Independent Claim
127 words
A method of removing a protective plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, and are unconfined by walls so that heat, sufficient to oxidize said material, is not concentrated on said chucks by any means other than said direct flame impingement, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 27
Independent Claim
111 words
A method of removing a protective plastic coating material from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational, and while at the same time raising the skin temperature of the chucks no higher than about 1000*F. as measured immediately after said flame impingement.
Claim 28
Independent Claim
111 words
A method of removing a protective plastic coating material from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational, and while at the same time raising the skin temperature of the chucks no higher than about 1000*F. as measured immediately after said flame impingement.
Claim 29
Independent Claim
131 words
A method of removing a protective plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid from chucks of the type of operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at a predetermined speed, and in an open unconfined area, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational, and while at the same time raising the skin temperature of the chucks no higher than about 100*F. as measured immediately after said flame impingement.
Claim 30
Independent Claim
131 words
A method of removing a protective plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid from chucks of the type of operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at a predetermined speed, and in an open unconfined area, thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational, and while at the same time raising the skin temperature of the chucks no higher than about 100*F. as measured immediately after said flame impingement.
Claim 31
Independent Claim
103 words
A method of removing plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, and in an open, unconfined areA; thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 32
Independent Claim
103 words
A method of removing plastic coating material comprising an ionic copolymer material which is formed from ethylene and methacrylic acid from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, and in an open, unconfined areA; thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 33
Independent Claim
90 words
A method of removing plastic coating material from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, and in an open, unconfined area; thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 34
Independent Claim
90 words
A method of removing plastic coating material from chucks of the type operable to support and convey glassware through a protective plastic coating process at a predetermined speed, the method comprising the steps of: impinging a flame, burning on a natural gas-oxygen fuel mixture comprising about one part gas and about four parts oxygen, on said chucks, while said chucks are moving at said predetermined speed, and in an open, unconfined area; thereby burning and oxidizing said material in order to remove it so as to maintain said chucks operational.
Claim 35
Independent Claim
138 words
A method of removing plastic coating material from chucks of the type used to support and transfer glass containers during a protective plastic coating process wherein a finely divided ionic copolymer material, which is formed from ethylene and methacrylic acid, is sprayed onto said containers by an electrostatic dry powder process and is then heat cured to form a protective plastic coating thereon, and wherein said containers are preheated while in said chucks and particles of said material adhere to said chucks, the method comprising the steps of; impinging a flame, burning on a fuel mixture of about one part natural gas and about four parts oxygen, on selected chucks during said process at a time when said selected chucks are not supporting or transferring glassware, and thereby burning and oxidizing said ionic copolymer material on said chucks.
Claim 36
Independent Claim
138 words
A method of removing plastic coating material from chucks of the type used to support and transfer glass containers during a protective plastic coating process wherein a finely divided ionic copolymer material, which is formed from ethylene and methacrylic acid, is sprayed onto said containers by an electrostatic dry powder process and is then heat cured to form a protective plastic coating thereon, and wherein said containers are preheated while in said chucks and particles of said material adhere to said chucks, the method comprising the steps of; impinging a flame, burning on a fuel mixture of about one part natural gas and about four parts oxygen, on selected chucks during said process at a time when said selected chucks are not supporting or transferring glassware, and thereby burning and oxidizing said ionic copolymer material on said chucks.
References Cited (Backward Citations)
US2563085A
Cited
US2731372A
Cited
US3805985A
Cited
US3830196A
Cited
US3740259A
Cited
US3749602A
Cited
US3854439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |