Single hand operated adjustable carrying device and method...

Details Single hand operated adjustable carrying device and method... Single hand operated adjustable carrying device and method...

2007-07-10

2007-07-10

Kramer, Dean J (Department: 3652)

Handling: hand and hoist-line implements

Hand bars and hand barrows

Opposing jaws

C294S103100, C294S104000

Reexamination Certificate

active

11162064

ABSTRACT:
An adjustable carrying device (12) includes a pair of gripping members (14, 16) in a slip joint pivot connection having a handle assembly (36) and gripping plates (20a, 20b) for grasping and handling an object. A pivotally activated/deactivated locking mechanism includes a plurality of evenly spaced teeth (66) within a guide track (54) and a cross member (76) biased between lock and unlock positions by a pair of torsion springs (74a, 74b). A pair of levers (22a, 22b) moved in unison by handle assembly (36) activate and deactivate the locking mechanism. While in unlock position a pair of coil tension springs (84) assist in the single handed adjustment of the gripping plates against the object's opposed surfaces. A subsequent upward pivotal motion of handle assembly (36) activates the locking mechanism, forcing gripping plates (20a, 20b) towards each other, firmly gripping the object prior to its lift.

REFERENCES:
patent: 747181 (1903-12-01), Jackson
patent: 800341 (1905-09-01), Tift
patent: 835376 (1906-11-01), Stewart
patent: 869152 (1907-10-01), Alline
patent: 1246491 (1917-11-01), Thayer
patent: 1973269 (1934-09-01), Russell
patent: 4055364 (1977-10-01), Breite
patent: 4109952 (1978-08-01), Monzain
patent: 4678217 (1987-07-01), Viola
patent: 4929010 (1990-05-01), Lahti
patent: 4968077 (1990-11-01), Redmon
patent: 5871242 (1999-02-01), Whitney
patent: 6220638 (2001-04-01), Carroll
patent: 6375237 (2002-04-01), Koenig
patent: 6422620 (2002-07-01), Jordening
patent: 6494513 (2002-12-01), Worthington

Affiliated with

Also associated with

Rating

Single hand operated adjustable carrying device and method... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Single hand operated adjustable carrying device and method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single hand operated adjustable carrying device and method... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3727552