US 12,253,106 B2
Coupler for threaded reinforcing bar
James Stone, Melbourne (AU); Andrew Coumaros, Melbourne (AU); Jonathan Lim, Melbourne (AU); and Bryan Kennedy, Glenview, IL (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on May 4, 2022, as Appl. No. 17/736,368.
Claims priority of application No. 2021901323 (AU), filed on May 4, 2021.
Prior Publication US 2022/0356893 A1, Nov. 10, 2022
Int. Cl. F16B 7/18 (2006.01)
CPC F16B 7/182 (2013.01) 13 Claims
OG exemplary drawing
 
1. A coupler comprising:
a fitting mountable to an externally threaded reinforcing bar, the fitting including a body having a portion having a first free end that defines an opening configured to receive the reinforcing bar and the portion having a second end spaced from the first free end, the body having an internal thread engageable with the thread of the reinforcing bar, the internal thread extending from the first free end of the portion to the second end of the portion, wherein the internal thread has an asymmetric thread form having an outer ramped portion and an inner ramped portion, the outer ramped portion being inclined to a central axis of the coupler at a first angle, the inner ramped portion being inclined to the central axis of the coupler at a second angle, the first angle being smaller in magnitude than the second angle, wherein the first angle is constant throughout the internal thread from the first free end of the portion to the second end of the portion.