Tool driving or impacting – With vehicle support for drive – Movement of vehicle causes tool advance
Reexamination Certificate
2005-08-23
2005-08-23
Goodman, Charles (Department: 3724)
Tool driving or impacting
With vehicle support for drive
Movement of vehicle causes tool advance
C173S025000, C173S026000, C083S745000, C083S221000, C083S928000, C083SDIG001, C030S379000
Reexamination Certificate
active
06932163
ABSTRACT:
A saw (10) facilitates cutting of roofing and includes a frame (12) that is mobile on a work surface. A locking mechanism (40) locks the frame (12) into a transport position. Actuating a release lever (60) allows the frame (12) to be adjusted into a working position. A shaft (14) rotatably mounted by first, second and third bearings (74, 75, 76) has saw blades (16, 18) and a pulley (77) for connection with a drive belt (80). The drive belt (80) passes through a hole (79) in the frame (12) to connect to a drive (81) to rotate the shaft (14) and the saw blades (16, 18). The third bearing (76) is mounted to a bearing support (85). The frame (12) has a gap (84) communicating the hole (79) with an exterior edge (78) of the frame (12) proximate the third bearing (76), with the bearing support (85) removably and replaceably mounted to the frame (12) and spanning the gap (84). When the bearing support (85) is removed from the frame (12), the third bearing (76) is void of attachments to the frame (12), and the drive belt (80) may be passed over the access end (70) of the shaft (14) and over the third bearing (76) and into the hole (79) to access the pulley (77) while the first, second and third bearings (74, 75, 76) remain in position on the shaft (14) to expedite drive belt replacement.
REFERENCES:
patent: 3663060 (1972-05-01), Shatwell et al.
patent: 3675689 (1972-07-01), Rice
patent: 4294046 (1981-10-01), Damiano
patent: 4353275 (1982-10-01), Colville
patent: 4445557 (1984-05-01), Peters, III
patent: 4709736 (1987-12-01), Bellars
patent: 4832412 (1989-05-01), Bertrand
patent: 5813302 (1998-09-01), Haglund
patent: 6003570 (1999-12-01), Falatok et al.
patent: 6481324 (2002-11-01), Johnston
patent: 6672348 (2004-01-01), Ransom et al.
patent: 6823765 (2004-11-01), Stumpf et al.
Munoz John
Stoffels Richard B.
Garlock Equipment Company
Goodman Charles
Kamrath Alan D.
Nikolai & Mersereau , P.A.
LandOfFree
Roofing saw with locking mechanism and removable bearing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Roofing saw with locking mechanism and removable bearing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roofing saw with locking mechanism and removable bearing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3515334