WO2009139617A3 - An electro-static discharge garment with covered conductive threads in double j-shaped seams - Google Patents

Abstract

An electro-static discharge (ESD) garment can be constructed as a pant suit, a smock or any other type of garment which is intended to be worn as an over-garment about the usual clothing of a person. An over-garment such as a pant suit is formed from constituent sections (10) of a torso section (1), a collar section (2), a pair of arm sections (3), and a pair of leg sections (4). Such an ESD garment would include a collar seam (21), two arm seams (31), a cross seam (41), and a crotch seam (42). These seam linings dissipate or drain static charge from the human body to the ground, if there is electrical continuity throughout the joining. At each seam, upper and lower constituent conductive fabric sections (10) are sewed together with normal thread (11). According to one embodiment of the present invention, a conductive thread (9) is first sewed along the joining edge of either upper or lower constituent conductive fabric section (10). Alternatively in another embodiment, a conductive thread is sewed along the joining edges of upper and lower constituent conductive fabric sections (10). Next, the two joining edges of upper and lower constituent conductive fabric sections (iθ) are adjacently folded to form a double J-shaped seam. This special seam with four layers of conductive fabric is sewed together with normal threads (11). This special seam enables multiple paths of drainage of static electricity along the joining of the ESD garment, even after long use.