Safety chain and rotational devices and replaceable teeth...

Cutting – Cutter assemblage or cutter element therefor – Having diverse cutting elements

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C083S839000, C083S843000, C083S842000, C083S831000

Reexamination Certificate

active

07836808

ABSTRACT:
Safety chain and rotatable devices, used on saws or other machines for cutting or abrading material, include a plurality of holding members on which replaceable teeth are retained. Safety lobes prevent the teeth from being dislodged during operation of the saw. The safety lobes may be disposed on a link located in front of the holding member or disposed on a link located in back of the holding member, or both. The teeth can include sharp edges adapted for cutting various materials including wood, plastic and metal and can be formed with abrasive surfaces for abrading materials including brick and concrete. The teeth are quickly removable from the saw without the need for fasteners. While the teeth may be retained by engagement between the teeth and holding member, the chain and rotatable devices may retain the teeth on the holding members using only the safety lobes or safety surfaces. The rotational device can include two blades each including holding members and safety lobes. The blades are positioned and fixed to each other effective to enable the safety lobes of one blade to prevent dislodging the of the teeth of the other blade. The chain and blades can include depth gauges or rakers. Saws or cutting or abrading machines are operated while preventing dislodging of the replaceable teeth. When the device is operated to stop movement of the chain or blades, damaged or worn teeth can be quickly replaced with new or replacement teeth.

REFERENCES:
patent: 1150218 (1915-08-01), Martin
patent: 2041347 (1936-05-01), Jacques
patent: 2583243 (1952-01-01), Tweedie
patent: 2713276 (1955-07-01), Siverson
patent: 2852048 (1958-09-01), Cox
patent: 2854866 (1958-10-01), Mall et al.
patent: 2884798 (1959-05-01), Wilson
patent: 2978000 (1961-04-01), Raney
patent: 2994350 (1961-08-01), Lundberg
patent: 3180378 (1965-04-01), Carlton
patent: 3227416 (1966-01-01), Fessel
patent: 3444907 (1969-05-01), Chadwick
patent: 3528465 (1970-09-01), Omley
patent: 3547167 (1970-12-01), Raetz
patent: 3590472 (1971-07-01), Nix et al.
patent: 3608606 (1971-09-01), Marzocchi
patent: 3800633 (1974-04-01), Funakubo
patent: 3837241 (1974-09-01), Weiss
patent: 3910148 (1975-10-01), Weiss
patent: 4074604 (1978-02-01), Goldblatt et al.
patent: 4206253 (1980-06-01), Watanabe
patent: 4295885 (1981-10-01), Kaarlela
patent: 4348927 (1982-09-01), Olmr
patent: 4353277 (1982-10-01), Silvon
patent: 4425830 (1984-01-01), Atkinson
patent: 4459890 (1984-07-01), Dolata et al.
patent: 4462293 (1984-07-01), Gunzner
patent: 4484504 (1984-11-01), Atkinson
patent: 4546755 (1985-10-01), Gustavsson
patent: 4558621 (1985-12-01), Nitschmann et al.
patent: 4581968 (1986-04-01), Gibson et al.
patent: 4604932 (1986-08-01), Doiron
patent: 4606253 (1986-08-01), Weigel
patent: 4625610 (1986-12-01), Petrovich
patent: 4627322 (1986-12-01), Hayhurst, Jr.
patent: 4690024 (1987-09-01), Chaconas
patent: 4727778 (1988-03-01), Omi
patent: 4744278 (1988-05-01), Wright
patent: 4756221 (1988-07-01), Nitschmann et al.
patent: 5042350 (1991-08-01), Nitschmann
patent: 5056395 (1991-10-01), Sovak et al.
patent: 5184598 (1993-02-01), Bell
patent: 5257568 (1993-11-01), Nitschmann
patent: 5318006 (1994-06-01), Walen
patent: 5564996 (1996-10-01), Sundström
patent: 5641921 (1997-06-01), Dennis et al.
patent: 5743163 (1998-04-01), Lavinder
patent: 5809848 (1998-09-01), Viswanadham et al.
patent: 5976455 (1999-11-01), Pantzar et al.
patent: 6000312 (1999-12-01), Viswanadham et al.
patent: 6035844 (2000-03-01), Otani et al.
patent: 6286406 (2001-09-01), Viswanadham et al.
patent: 6308606 (2001-10-01), Buchholtz et al.
patent: 6684752 (2004-02-01), Satran et al.
patent: 6748840 (2004-06-01), Harfst
patent: 6790252 (2004-09-01), Smith et al.
patent: 6871573 (2005-03-01), Mang
patent: 2002/0124421 (2002-09-01), Hermes et al.
patent: 2003/0126952 (2003-07-01), Duquet
patent: 2004/0025355 (2004-02-01), Harfst
patent: 2004/0134478 (2004-07-01), Bailey
patent: 2004/0141865 (2004-07-01), Keshavan et al.
patent: 2004/0187639 (2004-09-01), Kobayashi
patent: 2005/0115379 (2005-06-01), Schulz et al.
patent: 2005/0142020 (2005-06-01), Akira
patent: 2005/0178263 (2005-08-01), Szymanski
patent: 2005/0276717 (2005-12-01), Fang
patent: 2006/0060030 (2006-03-01), Lowder
patent: 2007/0169598 (2007-07-01), Szymanski
patent: 721087 (1965-11-01), None
patent: 1 040 796 (1956-09-01), None
patent: 2 067 465 (1981-07-01), None
Carlton Saw Chain—Saw Chain Product Descriptions, Carlton Company, Inc., 2004 (www.sawchain.com/products/productdescBar.asp?SeriesID=17).
Village Science: Chainsaw Clutch & Chain (www.ankn.uaf.edu/VS/chainsaw.html), no date.
Carlton Saw Chain—Distributor & Dealer Support, Publications and Promotions, 2004-2005 Product Application Guide, pp. 6-8 and 11, 2004.
Chain Saw Use and Maintenance, pp. 14-27 (www.appalachiantrail.org), no date.
Chain Tooth Parts, (www.forestapps.com/tips/chaintoth/chain.htm), no date.

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

Safety chain and rotational devices and replaceable teeth... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Safety chain and rotational devices and replaceable teeth..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety chain and rotational devices and replaceable teeth... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4241942

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