Patent ID: 11898376
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 3:
4. The locking apparatus of claim 3, further comprising a rotatable knob attached to a rotatable shaft, and wherein said rotatable shaft is attached to an override mechanism such that, when said locking apparatus is in said locked state, a rotation of said rotatable knob in a first direction of rotation is operable to motivate said slide car along its slidable engagement with said base plate against said expanding force such that said locking pin is motivated out of said pin receiving opening, placing said locking apparatus in an override state; and wherein when said locking apparatus is in an override state, rotation of said rotatable knob in a second direction of rotation that is opposite said first direction of rotation allows said expanding force to motivate said locking pin into said pin receiving opening, placing said locking apparatus in said locked state.