Half block for multi-level interlocking blocks

Details Half block for multi-level interlocking blocks Half block for multi-level interlocking blocks

2011-08-23

2011-08-23

Wilson, Lee D (Department: 3727)

Implements or apparatus for applying pushing or pulling force

Inclined plane lifter

C254S00500R, C254S00200C, C254S134000, C248S346060, CD12S217000

Reexamination Certificate

active

08002241

ABSTRACT:
The present invention is a unitary piece block formed of polymers (such as polystyrene or other high strength polymer) by a single injection molding step which are assembled into a recreational vehicle leveler. The invention ramp provides four sets of four connectors at a top of a floor plate, which are adapted to interlock in cavity structures formed within a cavity on the underside of the block. Two adjacent blocks are secured together by applying to their top surfaces the securing cavity structure of an underside of a third such block. Such blocks can be stacked in an interlocking manner to reduce storage space.

REFERENCES:
patent: 3162973 (1964-12-01), Christiansen
patent: 3487579 (1970-01-01), Brettingen
patent: 4165862 (1979-08-01), Bennett
patent: 4427179 (1984-01-01), Price
patent: 4606732 (1986-08-01), Lyman
patent: 4838176 (1989-06-01), Bowser et al.
patent: 5458315 (1995-10-01), Blatz et al.
patent: D426933 (2000-06-01), Redfern
patent: 6135420 (2000-10-01), Johnston et al.
patent: 6752381 (2004-06-01), Colak et al.
patent: D520438 (2006-05-01), Colak et al.
patent: 7040603 (2006-05-01), Tai et al.
patent: D531568 (2006-11-01), Davidian
patent: 7416166 (2008-08-01), Shaw
patent: 2003/0146422 (2003-08-01), Funk et al.

Affiliated with

Also associated with

Rating

Half block for multi-level interlocking blocks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Half block for multi-level interlocking blocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Half block for multi-level interlocking blocks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2786951