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US 7,124,454 B2Granted
Pneumatic cot for use with emergency vehicles
OwnerNathan R. Walkingshawinventor
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OwnerNathan R. Walkingshawinventor
Estimating the term…
An ambulance cot is provided having a wheeled carriage, a frame for mounting the wheels, a horizontally oriented patient litter supported from the wheeled carriage and variable, pneumatically powered height scissors frame. The pneumatic actuator is designed to give a patient air-ride transportation and an adjustable height litter for lifting a patient from the ground. The patient litter has a pivoting hinge for transporting a patient down stairs. This pivot will allow the stretcher to pivot to a horizontal angle while going down stairs, for patient support and ease of transportation for said operator below. One embodiment has tracks attached over the wheels to provide a more stable and smooth ride as the cot is moved down stairs. Another embodiment comprises a translational trolley configuration. A hand brake is mounted on the patient litter for braking the tank-like motion of the tracks.
In an emergency vehicle cot having a wheeled undercarriage, a scissors mechanism, a cot litter support frame, and an extendable, pneumatic ram for elevating the scissors frame, an improvement comprising:
In an emergency vehicle cot having a wheeled undercarriage, a scissors mechanism, a cot litter support frame, and an extendable, pneumatic ram for elevating the scissors frame, the improvement comprising:
In an emergency vehicle cot having a wheeled undercarriage, a scissors mechanism, a cot litter support frame, and an extendable, pneumatic ram for elevating the scissors frame, wherein the improvement comprises a cot litter support pivotally attached to the scissors mechanism so that when the wheels of the cot are on an incline, the cot litter support may be placed in a horizontal position.
Dependencies are inferred from the claim text.