US Patent 7165380 Snap connector

A connector (10) includes a housing (34) and an arm (43) pivotally connected to the housing (34). A hook (48) is formed on one end of the arm (43) and a spring (49) is positioned between the arm (43) and the housing (34). The connector (10) can be used to attach two items of many configurations together, but it is particularly suited to attach strap ends of an item such as a halter (11) having a strap (12) and a strap (13) interconnected by a plurality of tab straps (20, 21, 22). The strap (12) is interrupted to form a portion (32) carrying the connector (10) and another portion (31) carrying an o-ring (29) which can be engaged between the hook (48) and the housing (34).