US 11,795,989 B2
Fastener assembly
Mark Theismann, Decorah, IA (US); Alan Shindelar, Calmar, IA (US); and Richard Lukes, Calmar, IA (US)
Assigned to INFASTECH INTELLECTUAL PROPERTIES PTE LTD, Singapore (SG)
Filed by INFASTECH INTELLECTUAL PROPERTIES PTE LTD, Singapore (SG)
Filed on Sep. 28, 2020, as Appl. No. 17/34,929.
Claims priority of provisional application 62/915,243, filed on Oct. 15, 2019.
Prior Publication US 2021/0108671 A1, Apr. 15, 2021
Int. Cl. F16B 37/14 (2006.01); F16B 41/00 (2006.01)
CPC F16B 37/14 (2013.01) [F16B 41/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A nut of a fastener assembly, the fastener assembly for fastening two workpieces together and including the nut and a screw and is assembled along a central longitudinal axis, the screw including an externally threaded shaft and a radially enlarged screw head, the nut comprising:
a generally cylindrical shank extending axially toward a first longitudinal end of the nut and a nut head that is radially enlarged relative to the shank and disposed at a second longitudinal end of the nut, the shank including a threaded bore that is accessible at the first end to the externally threaded shaft of the screw, an exterior of the shank including a plurality of knurls extending radially and longitudinally therefrom, the nut head having a flange, the flange including a bottom side adjacent to the shank and an opposite top side, the nut head also including a shaped drive projection extending axially away from the flange and toward the second longitudinal end, the shaped projection including a longitudinally extending engagement surface for engaging a torque applying tool, the engagement surface facing radially outward,
a plastic cover, the plastic cover surrounding the head of the nut and at least a portion of the shank,
wherein, in use, the plastic cover forming a seal with at least one of the workpieces, and wherein at least a portion of the plastic cover is removeable from the head to access the shaped drive projection.