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(12) Patent: | (11) CA 2413899 |
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(54) English Title: | METHOD OF CLEANING CONTAMINANTS FROM INDUSTRIAL COMPONENTS |
(54) French Title: | METHODE DE DECONTAMINATION DE COMPOSANTS INDUSTRIELS |
Status: | Term Expired - Post Grant Beyond Limit |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | NATHAN V. WOODRUFFWOODRUFF, NATHAN V. |
(74) Associate agent: | |
(45) Issued: | 2009-08-18 |
(22) Filed Date: | 2002-12-06 |
(41) Open to Public Inspection: | 2004-06-06 |
Examination requested: | 2005-11-14 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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A method of cleaning contaminants from an industrial component. A first step involves immersing the industrial component in a chemical pre-soak tank containing a chemical cleaning agent effective with the contaminants. The chemical pre-soak tank is maintained at a temperature of not less than 160 degrees fahrenheit and not more than 180 degrees fahrenheit. The industrial component is maintained in the pre-soak tank for a time duration sufficient to soften the contaminants without causing the contaminants to break down into layers of constituent elements, while raising the temperature of the industrial component in preparation for cleaning. A second step involves subjecting the tank to ultrasonic waves at a frequently of not less than 80 megahertz and not more than 120 megahertz..
Méthode d'élimination d'agents contaminants d'un composant industriel. Une première étape consiste à immerger ledit composant dans un réservoir de prétrempage chimique contenant un agent nettoyant chimique efficace contre les agents contaminants. Le réservoir de prétrempage chimique est maintenu à une température d'au moins 160 degrés Fahrenheit et d'au plus 182 degrés Fahrenheit. Le composant industriel est maintenu dans le réservoir de prétrempage pendant une période suffisamment longue pour amollir les agents contaminants sans que ces derniers ne se décomposent en couches de leurs éléments constituants, tout en élevant la température du composant industriel en préparation au nettoyage. Une seconde étape consiste à exposer le réservoir à des ultrasons à une fréquence d'au moins 80 mégahertz et d'au plus 120 mégahertz.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Inactive: Expired (new Act pat) | 2022-12-06 |
Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Letter Sent | 2017-08-07 |
Letter Sent | 2017-08-07 |
Letter Sent | 2017-08-07 |
Letter Sent | 2017-08-07 |
Inactive: Multiple transfers | 2017-07-26 |
Revocation of Agent Requirements Determined Compliant | 2011-04-26 |
Inactive: Office letter | 2011-04-26 |
Inactive: Office letter | 2011-04-26 |
Appointment of Agent Requirements Determined Compliant | 2011-04-26 |
Grant by Issuance | 2009-08-18 |
Inactive: Cover page published | 2009-08-17 |
Pre-grant | 2009-05-29 |
Inactive: Final fee received | 2009-05-29 |
Notice of Allowance is Issued | 2009-04-27 |
Letter Sent | 2009-04-27 |
4 | 2009-04-27 |
Notice of Allowance is Issued | 2009-04-27 |
Inactive: Approved for allowance (AFA) | 2009-03-13 |
Amendment Received - Voluntary Amendment | 2008-12-16 |
Inactive: S.30(2) Rules - Examiner requisition | 2008-06-16 |
Small Entity Declaration Determined Compliant | 2007-11-27 |
Small Entity Declaration Request Received | 2007-11-27 |
Amendment Received - Voluntary Amendment | 2006-01-05 |
Letter Sent | 2005-11-22 |
Request for Examination Received | 2005-11-14 |
Request for Examination Requirements Determined Compliant | 2005-11-14 |
All Requirements for Examination Determined Compliant | 2005-11-14 |
Letter Sent | 2005-02-08 |
Letter Sent | 2005-02-08 |
Inactive: Delete abandonment | 2004-10-19 |
Inactive: Abandoned - No reply to Office letter | 2004-08-30 |
Application Published (Open to Public Inspection) | 2004-06-06 |
Inactive: Cover page published | 2004-06-06 |
Inactive: Transfer information requested | 2004-05-28 |
Inactive: Correspondence - Transfer | 2004-04-27 |
Inactive: Transfer information requested | 2004-04-22 |
Inactive: Transfer information requested | 2004-01-19 |
Inactive: Single transfer | 2003-12-08 |
Inactive: First IPC assigned | 2003-03-13 |
Inactive: IPC assigned | 2003-03-13 |
Inactive: Courtesy letter - Evidence | 2003-02-04 |
Inactive: Filing certificate - No RFE (English) | 2003-01-29 |
Application Received - Regular National | 2003-01-28 |
There is no abandonment history.
The last payment was received on 2008-09-22
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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TECH SONIC LIMITED PARTNERSHIP |
Past Owners on Record |
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JOHN F. KNOX |