Patent attributes
A cane includes a tube and a direction-correcting apparatus including a sleeve, a gasket, a pad unit and a connector unit. The sleeve receives the tube and includes an annular shoulder on an internal face. The gasket is inserted in the sleeve. The pad unit includes a dome in contact with the gasket, an aperture in the dome, and a flat face around the aperture. The connector unit includes a threaded bolt, a nut engaged with the threaded bolt and connected to the tube, and a spring compressed between the nut and the annular shoulder. The threaded bolt includes a head at an end of the shank. The shank is inserted in the sleeve via the aperture of the pad unit. The head includes a flat upper face for contact with the flat face of the dome when the head is inserted in the dome.
