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US3574032A Expired / Lapsed US ⏱️ 0.0 years remaining

Contact body for water and air as employed in cooling towers

Assignee: GUNNAR NORBACK
•
Filing: 1966-07-15
•
Granted: 1971-04-06
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Expires: 1986-07-15
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Abstract

Abstract MANUFACTURE. THIS INTERMEDIATE ARTICLE OF MANUFACTURE MAY BE SUBSEQUENTLY STORED OR ASSEMBLED IN THE FIELD TO FORM A CONTACT BODY FOR GAS AND LIQUID. ONCE THE INTERMEDIATE ARTICLES HAVE BEEN STACKED APPROPRIATELY WITH RESPECT TO EACH OTHER, THE ADHESIVE MATERIAL IS REACTIVATED TO CAUSE THE ADJACENT SHEET ELEMENTS TO ADHERE THERETO. SUBSEQUENT RESOLIDIFICATION OF THE ADHESIVE MATERIAL EFFECTS THE PRODUCTION OF THE DESIRED CONTACT BODY. THIS DISCLOSURE PROVIDES A METHOD OF PREPARING CORRUGATED, NON-METALLIC LAYER ELEMENTS FOR USE IN THE PRODUCTION OF A CONTACT BODY FOR GAS AND LIQUID. AN ADHESIVE MATERIAL HAVING ADHESIVE CHARACTERISTICS EFFECTIVE TO BE REACTIVATED BY CHANGE IN SURROUNDING ATMOSPHERIC CONDITIONS IS USED IN THE METHOD OF THIS INVENTION. THE ADHESIVE MATERIAL IS APPLIED TO AT LEAST A PORTION OF THE CORRUGATIONS AT A PLURALITY OF POINTS OF CONTACT FOR ADJACENT LAYER ELEMENTS TO BE USED IN A CONTACT BODY FOR GAS AND LIQUID. THE ADHESIVE MATERIAL IS SUBSEQUENTLY DRIED TO A SOLID, NON-ADHESIVE CONDITION TO FORM AN INTERMEDIATE ARTICLE OF

Inventors

  • 👤 Per Gunnar Norback
  • 👤 George W Meek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 08:31
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/32; F; F28; F28F; F28F25/00; F28F25/02; F28F25/06; F28F25/08; F28F25/087; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/3221; B01J2219/32213; B01J2219/32224; B01J2219/32227; B01J2219/32275; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24719

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-04-05 1974-10-05 1975-04-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-04-05 1978-10-05 1979-04-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-04-05 1982-10-05 1983-04-06 $7700.00 Window Closed / Lapsed

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