Patent ID: 11883334
Assignee: STRYKER CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. The patient transport apparatus of claim 13, wherein the guide assembly includes an adjustment member that is coupled to the piston rod for adjusting an operating length of the compression spring to adjust a load imparted by the compression spring;
wherein the piston rod includes an outer surface having a threaded portion, the adjustment member including a tensioning nut threadably coupled to piston rod, wherein a rotation of the tensioning nut with respect to the piston rod adjusts the operating length of the compression spring; and
wherein a rotation of the tensioning nut in a first rotational direction moves the tensioning nut along the piston rod in a first linear direction to decrease the operating length of the compression spring to increase biasing force of the compression spring, and wherein a rotation of the tensioning nut in a second opposite rotational direction moves the tensioning nut along the piston rod in a second opposite linear direction to increase the operating length of the compression spring to reduce biasing force of the compression spring.