Patent ID: 7913409

Claim:
A marking system for construction, comprising: a main body; a first hook configured to connect to said main body at a first post; a second hook configured to connect to said main body at a second post; said first hook and said second hook configured to overlap into a closed loop at a tip; said first post and said second post configured to allow said first hook and said second hook to rotate back and forth; said first hook and said second hook configured to hold together via a first spring such that said first hook and said second hook overlap while in a resting position; a second spring positioned in the center of said main body around a loop plunger, said loop plunger configured for movement that is controlled by said second spring; said loop plunger being connected, at a first end, to a malleable tap; said malleable tap being located between said main body, said first hook and said second hook; said loop plunger connected, at a second end, to a string; said second spring having greater tensile strength than said first spring; said second spring, connected to said loop plunger at an end of said main body, being configured to cause said loop plunger to hold said malleable tap in place; said second spring configured to push said loop plunger and said malleable tap via connection between said loop plunger and said malleable tap against the rear of said first hook and said second hook when pressure is applied; said first spring configured to expand when pressure is applied such that said first hook and said second are pushed apart and a nail can be released; a bottom of said malleable tap configured to fit into a notch at the base of said first hook and said second hook when tension applied to said string causes said second spring to compress; said second spring configured to expand back to its original position returning said loop plunger back within said main body when tension is released from said string; and said malleable tap configured to push forward such that said first hook and said second hook to come apart simultaneously.