US 12,312,223 B2
Agile mobile scissor lift apparatus
Jeffrey S. Kritzer, Moorpark, CA (US)
Assigned to BendPak, Inc., Agoura Hills, CA (US)
Filed by BendPak, Inc., Santa Paula, CA (US)
Filed on May 18, 2022, as Appl. No. 17/664,042.
Claims priority of provisional application 63/213,039, filed on Jun. 21, 2021.
Prior Publication US 2022/0402735 A1, Dec. 22, 2022
Int. Cl. B66F 9/065 (2006.01); B66F 9/075 (2006.01)
CPC B66F 9/065 (2013.01) [B66F 9/07509 (2013.01); B66F 9/07559 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A mobile lift apparatus comprising:
a base frame having opposite sides;
a lift mechanism mounted on the base frame and operable to lift and lower a load;
a plurality of caster units connected to and extending below the base frame, the plurality of caster units cooperating to enable the base frame to be moved about a support surface of the apparatus, each of the caster units including:
a caster plate pivotally engaged with the base frame to enable pivoting freely about a substantially vertical plate axis; and
a plurality of swivel casters pivotally engaged with the caster plate in mutually spaced relation and in such a manner as to enable pivoting freely about respective, substantially vertical swivel axes; and
at least one floor brake mechanism secured to the base frame, the floor brake mechanism including a brake pad which is selectively extended into braking contact with the support surface in a brake position thereof to secure a position of the apparatus and which is retracted to a released position to enable movement of the apparatus on the support surface.