Patent ID: 6622589
Filing Date: 2003-09-23
Classification: F02D,G05G,Y10T

Abstract:
A manual control apparatus, comprising:a base; a curved friction surface coupled with said base; a pivot coupled with said base that defines an axis of rotation spaced from said curved friction surface; a rotatable member coupled to said pivot, wherein said rotatable member is rotatable around said axis of rotation relative to said base; a friction element directly coupled to said rotatable member, spaced from said axis of rotation, and forcible against said curved friction surface; and, a spring having a first end, a second end, and an intermediate portion between said first end and said second end, said first end being coupled to said base, said second end being coupled to said rotatable member; wherein rotation of said rotatable member forces said intermediate portion against said friction element resisted by said curved friction surface thereby generating a frictional resistance to said rotation.