Block hoist

Woodworking – Splitting machine – Wedge

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C144S193100, C144S366000, C144S004600

Reexamination Certificate

active

07011123

ABSTRACT:
A new or retrofit block hoist for conventional, hydraulic-powered log splitters assists in the lifting, maneuvering, and positioning of large diameter, heavy logs that require multiple radial splits to section them for firewood, comprising a boom, pulley and cable system. A boom assembly is secured to the top end of the splitter guide beam and pulleys guide a lifting cable anchored to the wedge slide to a log section retainer means (dog or awl). The upward, hydraulically-powered movement of the cutting wedge along the I-beam lifts the log section as the wedge is raised into its upward, retracted position. Once lifted, the log is swung into position between the wedge and splitter foot plate. The wedge is then power extended (lowered), splitting the log. An optional turntable is securable to the footplate. The inventive block hoist can be provided as a kit.

REFERENCES:
patent: 508221 (1893-11-01), Hil
patent: 2851072 (1958-09-01), Gerjets et al.
patent: 3410420 (1968-11-01), Butts
patent: 4155385 (1979-05-01), Lapointe
patent: 4284112 (1981-08-01), Hoskin
patent: 4351378 (1982-09-01), Smith
patent: 4483379 (1984-11-01), Aikins et al.
patent: 4487239 (1984-12-01), Anderson
patent: D281113 (1985-10-01), Plumb
patent: 4559985 (1985-12-01), May
patent: 4700759 (1987-10-01), Duerr
patent: 4770218 (1988-09-01), Duerr
patent: 5520498 (1996-05-01), DiBartolomeo
patent: 5575517 (1996-11-01), Thomas
patent: 5622237 (1997-04-01), Moldow
patent: 5651404 (1997-07-01), Kraemer et al.
patent: 5820455 (1998-10-01), Breedlove
patent: 5967206 (1999-10-01), Milton
patent: 6095349 (2000-08-01), O'Meara
patent: 6371449 (2002-04-01), Chamberlain
patent: 51853 (1982-05-01), None
Country Home Products, Vergennes, Vermont, Winter 2004 catalog p. 22, 23: Wood Splitters and accesories.
RS-Q Hoist (formerly Uni-Hoist) Hoists masts, sleeves, mounts and other accessories from the web site of Canadian Safety Equipment Inc. Mississauga Ontario, CA L5A 3P2, Apr., 2002.
Halliday Products Portable Hoists, specification sheet.
24-Ton Horizontal and Vertical Log Splitter from FortheFarm.com, Aug., 2002.
Troy-Bilt 27 ton Log Splitter, described on web site.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Block hoist does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Block hoist, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Block hoist will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3582705

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.