Commercial lifting device-controls for power unit

Details Commercial lifting device-controls for power unit Commercial lifting device-controls for power unit

2006-10-31

2008-10-14

Wilson, Lee D (Department: 3723)

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

C254S00200C, C254S134000

Reexamination Certificate

active

07434782

ABSTRACT:
A handle and control mechanism on a mobile power unit for positioning extending, retracting and extracting a jack stand. The jack stand includes an alignment hole and a pair of ratchet release arms at the lower sides. The power unit includes a frame having a forward end with separated extensions for supporting the jack stand, and a rearward end having a tubular handle with a T bar hand grip with an operating lever on the right side. The handle has a rotatable control knob extending through the T bar hand grip for controlling a valve on a hydraulic cylinder. The forward extensions have an alignment block and pin for engaging the alignment hole of the stand. A pair of rectangular flippers are pivotally mounted at the inner rearward corners of the pin blocks, and have the outer rearward corners linked to the operating lever. The flippers have arcuate inner edges which are engageable with the ratchet release arms, have outer edge tabs that are engageable to retract the alignment pins, and are selectively controlled by the operating lever.

REFERENCES:
patent: 4289298 (1981-09-01), Kameda
patent: 4589630 (1986-05-01), Arzouman
patent: 4641813 (1987-02-01), Arzouman
patent: 4697788 (1987-10-01), Arzouman
patent: 4960264 (1990-10-01), Arzouman et al.
patent: 5110089 (1992-05-01), Slay
patent: 5183235 (1993-02-01), Arzouman et al.
patent: 2003/0218156 (2003-11-01), Arzouman
patent: 2003/0218157 (2003-11-01), Arzouman
patent: 2003/0218158 (2003-11-01), Arzouman
patent: 2003/0218159 (2003-11-01), Arzouman

Affiliated with

Also associated with

Rating

Commercial lifting device-controls for power unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Commercial lifting device-controls for power unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Commercial lifting device-controls for power unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4005656