Mark E Hanlon

US Patent:

20060065807, Mar 30, 2006

Filed:

Dec 26, 2002

Appl. No.:

10/525864

Inventors:

Mark Hanlon - Costa Mesa CA, US

International Classification:

A47H 1/10

US Classification:

248327000

Abstract:

A ceiling mounted lift (), of the type having a support frame () housing a drive mechanism () that operates to raise and lower a lifting platen () using a fabric drive roller (), has a stabilizer (), and is small enough to fit between standard ceiling joists. Preferred stabilizers have free movement in substantially only one plane and such arrangement is aided by the use of a bearing and hardened washers. Lifts according to the present invention can safely have a travel distance of up to 50 feet, and can manage payloads up to 1000 pounds.

US Patent:

20060180403, Aug 17, 2006

Filed:

Dec 27, 2005

Appl. No.:

11/320213

Inventors:

Mark Hanlon - Costa Mesa CA, US

International Classification:

B66B 9/02

US Classification:

187269000

Abstract:

A scissor lift includes an energy storage device that stores energy as the payload is lowered, and provides further lift to the payload as the payload is raised. This allows the scissors to achieve a support angle of up to 180 between the two arms (down to 0 between the screw drive and the lowest arm of the scissors), making the inventive scissor lifts considerably more compact than prior art lifts. The energy storage device is preferably a helical wire spring, but can alternatively be any suitable spring, piston, or even an elastomeric mass. Side to side movement of the scissors arms can be restricted using a thrust bearing with hardened washers at the inter-arm pivot, and/or a guided connector that transmits motive force to the scissors.