Abstract: A doorjamb strengthening device comprising an interior metal plate (1), a primary interior cylindrical reinforcing member (5), an aperture (11), a secondary cylindrical reinforcing member (6), an exterior metal plate (2), a primary exterior cylindrical reinforcing member (9), and a secondary exterior cylindrical connecting member (10). Interior metal plate is fastened to exterior metal plate by means of an interference fit between primary interior cylindrical reinforcing member and primary exterior cylindrical reinforcing member and secondary interior cylindrical connecting member and secondary exterior cylindrical connecting member.

Abstract: A foldable and portable dip bar arrangement (7) for performing dip exercises that condition the triceps and pectorial muscles comprising a left grip bar (1) being an elongate member with an arch shape that serves as a hand hold for left hand of exerciser while performing dips, a right grip bar (2) being elongate member with an arch shape that serves as a hand hold for right hand of exerciser while performing dips, left major supports (3A and 3B) are a pair of elongate members with one end in contact with the floor and other end connecting to ends of left grip bar and when in the unfolded position left major supports and left grip bar form an inverted U-shape, right major supports (3C and 3D) are a pair of elongate members with one end in contact with the floor and other end connecting to ends of right grip bar and when in the unfolded position right major supports and right grip bar form an inverted U-shape, left minor supports (4A and 4B) are a pair of elongate members with one end in contact with the floor

Abstract: A doorjamb strengthening device comprising an interior metal plate (1), a primary interior cylindrical reinforcing member (5), an aperture (11), a secondary cylindrical reinforcing member (6), an exterior metal plate (2), a primary exterior cylindrical reinforcing member (9), and a secondary exterior cylindrical connecting member (10). First metal plate is fastened to second metal plate by an interference fit between said primary interior cylindrical reinforcing member and said primary exterior cylindrical reinforcing member and said secondary interior cylindrical connecting member and said secondary exterior cylindrical connecting member.