Patient lifting table

A veterinary lift table comprising:

• (a) a rectangular, patient supportive upper platform having a substantially planar upper surface, opposite ends and an underside frame having spaced, longitudinal channels forming tracks;
• (b) a rectangular lower platform of substantially equal dimensions to said upper platform and having a generally planar, obstruction free upper surface, opposite ends and an underside frame having spaced longitudinal channels forming tracks;
• (c) wheels mounted on said lower platform for movement over a ground surface;
• (d) stop means mounted on said lower platform and engageable with said ground surface for selectively inhibiting movement;
• (e) a scissor linkage mechanism extending between and connected to said upper and lower platforms to provide straight upward and downward movement of said upper platform relative to said lower platform;
• said scissor linkage mechanisms including a center link arm having an upper end pivotally affixed to said upper platform frame and a lower end having wheels rotatably connected thereto and received in said lower platform tracks;
• and spaced link arms having upper ends with wheels rotatably connected thereto and received in said upper platform tracks and lower ends pivotally affixed to said lower platform frame;
• said center link arm and said spaced link arms crossing and having pivotally interconnected mid-portions;
• (f) bell crank arms connected to and extending angularly from said spaced link arms lower ends, said bell crank arms having a rod extending therebetween and positioned below said spaced link rams lower ends;
• (g) an extensible and retractible power fluid ram positioned in said lower platform below and concealed by the surface thereof and having one end pivotally affixed to said frame and a second end pivotally affixed to said rod for swinging said spaced link arms upwardly and downwardly upon respective extension and retraction of said ram;
• and
• (h) a foot operated pump mounted on said lower platform at one end of said lower platform adjacent said ram and having a cover concealing said pump;
• (i) a relief valve mounted at said one end of said lower platform and having a foot operable lever thereon to release pressure in said ram and facilitate lowering of said upper platform against said lower platform.

A veterinary table comprising:

• (a) an upper platform having a planar, patient supportive, upper surface;
• (b) a lower platform positioned below and aligned with said upper platform and having a generally planar, obstruction free, upper surface, for said upper platform to rest upon;
• (c) a scissors linkage mechanism extending between and connected to said upper and lower platforms to provide straight upward and downward movement of said upper platform relative to said lower platform;
• said scissors linkage mechanism including a center link member having an upper end pivotally affixed to said upper platform and a lower end slidably mounted on said lower platform, and spaced link members with said center link member extending therebetween;
• said spaced link members having upper ends slidably mounted on said upper platform and lower ends pivotally affixed to said lower platform;
• one of said spaced link members having a lower end with a lever arm affixed thereto and extending therefrom;
• (d) actuation means engaging said scissors linkage mechanism and operable to vary an extension of same and to cause selected raising and lowering of said upper platform relative to said lower platform;
• (i) said actuation means including a power fluid ram pivotally connected to, and extending between, said lower platform and said lever arm and extensible and retractable to selectively cause said raising and lowering of said upper platform with respect to said lower platform.