Excavating – Digging edge – Tooth or adaptor
Reexamination Certificate
2007-02-12
2010-11-16
Beach, Thomas A (Department: 3671)
Excavating
Digging edge
Tooth or adaptor
C037S456000, C037S457000, C403S374400
Reexamination Certificate
active
07832129
ABSTRACT:
A lock that includes a wedge that is used to releasably secure separable components of an assembly together. The wedge can be used with a spool. The wedge and spool are threadedly coupled together to drive the wedge into and out of an opening in the assembly without hammering or prying. The direct coupling of the wedge and spool eliminates the need for bolts, washers, nuts and other hardware so as to minimize the number of parts. As a result, the lock is inexpensive to make, easy to use, and unlikely to become inoperative because of lost or broken parts or due to fines or other difficulties encountered in harsh digging environments. Further, the wedge can be driven into the assembly to provide the degree of tightness necessary for the intended operation and/or to re-tighten the assembly after incurring wear during use. A latch assembly is preferably provided to securely hold the wedge in place and avoid an undesired loss of parts during use.
REFERENCES:
patent: 1021185 (1912-03-01), Foster
patent: 1917431 (1933-07-01), O'fallon
patent: 2020215 (1935-11-01), Ross
patent: 2547789 (1951-04-01), Skeel
patent: 3032152 (1962-05-01), Titsler
patent: 3121289 (1964-02-01), Eyolfson
patent: 3410010 (1968-11-01), Ratkowski
patent: 3413740 (1968-12-01), Peterson
patent: 3494245 (1970-02-01), Helton
patent: 3722932 (1973-03-01), Dougall
patent: 3831298 (1974-08-01), Helton et al.
patent: 4167355 (1979-09-01), Hansson
patent: 4262892 (1981-04-01), Wu
patent: 4267653 (1981-05-01), Hahn et al.
patent: 4282665 (1981-08-01), Fletcher et al.
patent: 4326348 (1982-04-01), Emrich
patent: 4360981 (1982-11-01), Bierwith et al.
patent: 4372703 (1983-02-01), Szostak
patent: 4380102 (1983-04-01), Hansson
patent: 4413432 (1983-11-01), Bierwith
patent: 4433496 (1984-02-01), Jones et al.
patent: 4492370 (1985-01-01), Park
patent: 4540309 (1985-09-01), Hansson
patent: 4570365 (1986-02-01), Bierwith
patent: 4638994 (1987-01-01), Gogarty
patent: 4663867 (1987-05-01), Hahn et al.
patent: 5052134 (1991-10-01), Bierwith
patent: 5068986 (1991-12-01), Jones
patent: 5074062 (1991-12-01), Hahn et al.
patent: 5134793 (1992-08-01), Bierwith
patent: 5144762 (1992-09-01), Robinson
patent: 5169033 (1992-12-01), Shay
patent: 5233770 (1993-08-01), Robinson
patent: 5272824 (1993-12-01), Cornelius
patent: 5311681 (1994-05-01), Ruvang et al.
patent: 5331754 (1994-07-01), Ruvang
patent: 5361520 (1994-11-01), Robinson
patent: 5410826 (1995-05-01), Immel et al.
patent: 5452529 (1995-09-01), Neuenfeldt et al.
patent: 5465512 (1995-11-01), Livesay et al.
patent: 5469648 (1995-11-01), Jones et al.
patent: 5487230 (1996-01-01), Weyer
patent: 5491915 (1996-02-01), Robinson
patent: 5564206 (1996-10-01), Ruvang
patent: 5638621 (1997-06-01), Keech et al.
patent: 5653048 (1997-08-01), Jones et al.
patent: 5666748 (1997-09-01), Emrich et al.
patent: 5709043 (1998-01-01), Jones et al.
patent: 5713145 (1998-02-01), Ruvang
patent: 5718070 (1998-02-01), Ruvang
patent: 5784813 (1998-07-01), Balassa et al.
patent: 5833323 (1998-11-01), Massa et al.
patent: 5852888 (1998-12-01), Cornelius
patent: 5868518 (1999-02-01), Chesterfield et al.
patent: 5913605 (1999-06-01), Jusselin et al.
patent: 5937549 (1999-08-01), Bender et al.
patent: 5937550 (1999-08-01), Emrich
patent: 5964547 (1999-10-01), Brinkley
patent: 5983534 (1999-11-01), Robinson et al.
patent: 6009644 (2000-01-01), Hedley
patent: 6032390 (2000-03-01), Bierwith
patent: 6209238 (2001-04-01), Ruvang
patent: 6216368 (2001-04-01), Bierwith
patent: 6282991 (2001-09-01), Hu
patent: 6301810 (2001-10-01), Fidler
patent: 6321471 (2001-11-01), Fernandez Munoz et al.
patent: 6729052 (2004-05-01), Ollinger, IV et al.
patent: 6735890 (2004-05-01), Carpenter et al.
patent: 6735891 (2004-05-01), Pallas Moreno et al.
patent: 6745503 (2004-06-01), Pallas Moreno et al.
patent: 6959506 (2005-11-01), Adamic et al.
patent: 6986216 (2006-01-01), Emrich et al.
patent: 6993861 (2006-02-01), Carpenter et al.
patent: 7090006 (2006-08-01), Salama
patent: 7526886 (2009-05-01), McClanahan et al.
patent: 2006/0010726 (2006-01-01), Emrich et al.
patent: 2007/0137071 (2007-06-01), McClanahan et al.
patent: 0 847 480 (1998-06-01), None
patent: 2 140 121 (2000-02-01), None
patent: 2125137 (1984-02-01), None
patent: WO00/20696 (2000-04-01), None
Illustration of V61 Hot Slag Pin Sold by ESCO Before Jul. 2, 2002.
Reexamination 95/000437; inc. Reexamination Req., 1st OA, the 1st Resp. by the patent owner & the 1st Reply from the Requester of Reexamination.
Reexamination 95/000467; incl. Reexamination Req., 1st OA & the 1st Response by the Patent Owner.
Reexamination 95/000467: 1st Reply from the Requester of Reexamination.
Reexamination 95/000437: Action Closing Prosecution issued Oct. 16, 2009.
Reexamination 95/000437: Patent Holder Response to Action Closing Prosecution.
Reexamination 95/000437: 3rd Party Requestors Comments.
Beach Thomas A
ESCO Corporation
Schad Steven P.
LandOfFree
Releasable coupling assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Releasable coupling assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Releasable coupling assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4191690