[12] Patent
[11] Patent No.:GC0007589  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126041
Date of the Decision to Grant the Patent:16/Apr/2018

[21] Application No.:GC 2012-22176

[22] Filing Date:4/9/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
10/11/2011
61/558.037

[72] Inventors:1- TAILOR, Dilip Kumar،2- BRANDON, Mark Phillip،3- TACOMA, Emerson John،4- DOYLE, Shawn،5- SEEPERSAUD, David

[73] Owner: ShawCor Ltd., 25 Bethridge Road, Ontario M9W 1M7, Toronto, Canada

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: F16L 53/00, 1/06, 17/22, 55/00, 58/10; H05B 1/02, 3/12, 3/36 (2006.01)

[56] Cited Documents:

-WO 2010 130345 A1 (NARIXZ), M.) 18 November 2010
-US 20100254687 A1 (GEORGE M‘ et £11.) 07 October 2010
-US 4460820 A (MATSUMCHO, 1M. et £11.) 17 July 1984
-WO 2010 102392 A1 (TAJLOR, DK. et al.) 16 September 2010
-US 3475592 A (BERKL J.U.) 28 October 1969
-US 3515853 A (MCADAMSL CO.) 02 June 1970
 
Examiner: Eng. Saleh M. AlAqil

[54] APPARATUS CONTAINING MULTIPLE SEQUENTIALLY USED INFRARED HEATING ZONES FOR TUBULAR ARTICLES
[57] Abstract: An apparatus for heating an elongate tubular article, such as a heat shrinkable sleeve applied around a welded pipe joint during pipeline construction. The apparatus is in the form of a frame which can be disposed around the article, the frame having a heater device having both longitudinally disposed heating zones and radially disposed heating sectors, each of which can be independently controlled. Alternatively, or in combination, the apparatus can have an air circulation system. Also, a method for shrinking a heat shrinkable sleeve comprising use of said apparatus.
No. of claims: 22     No. of figures: 44


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.