Abstract: An ergonomic snap hook that employs a recessed release to prevent undesirable unfastening. The snap hook uses a redundant locking gate that must be operated in a predetermined sequence to permit latch opening. Once the latch is opened, a rope or the like may be inserted into the hook to secure the user thereto. The snap hook is fastened to a supporting belt or strap which, in turn, is connectable, by the hook, to a body belt worn by the linemen. A spring biased, recessed gate prevents latch movement until the gate is released. Preferably, the gate mounts opposite of the latch. To unfasten the latch, the user first depresses the gate to align a follower on the latch with a slot opening on the gate. Subsequent follower movement along the slot coincides with latch release. The followers on the latch clean the slots on the gate as they move along them. The latch may then be opened by applying an appropriate pressure or force against the latch biasing spring. The gate may be easily manipulated with one hand.

Abstract: A safety-hook construction comprises a hook-shaped body having spaced first and second legs which cooperate to define a mouth on the body, a closure member pivotally mounted on the body and a locking member pivotally mounted on the closure member. The safety hook is normally biased to a closed position wherein the closure member obstructs the mouth on the body, wherein the locking member engages the inner surface of the first leg to prevent the closure member from being pivoted inwardly, and wherein a pair of thumb tabs on the locking member extend outwardly along opposite sides of the first leg. The safety hook is movable to an open position by grasping the body in the hand and drawing the thumb tabs along the first leg so that the locking member is pivoted toward the closure member and the closure member is pivoted inwardly until it no longer obstructs the mouth.

Abstract: A safety hook construction is operable for providing a simple, safe and durable interconnection between a safety belt, harness, etc., and a safety line. The safety hook comprises a hook body, a closure member pivotally mounted on the body and normally biased to a closed position wherein a mouth portion of the hook body is obstructed, and a latch mounted on the closure member which is normally biased to a locked position which prevents opening of the closure member. The safety hook is preferably formed so that the latch is pivotally mounted on the closure member and normally biased so as to engage a locking shoulder formed on the edge of the body opposite the mouth to prevent opening of the closure member. Accordingly, the hook can be operated with one hand, i.e.