Belt guard

Details Belt guard Belt guard

1998-03-19

1999-09-28

Jeffery, John A.

Endless belt power transmission systems or components

Guard or housing for belt or pulley

Extending along entire length of belt run

474150, 74 41, 74606R, 417313, F16H 5702, F16H 724, F16H 2132, F04B 2300

Patent

active

059577967

ABSTRACT:
A cover for a pump jack includes a main rear wall with two slots for engaging over a pair of shafts of the pump jack at the drive belt on the pulleys on the drive shafts. The rear cover portion includes a peripheral wall extending around the sides and top of the peripheral edge with the bottom of the cover panel being opened. A front panel portion manufactures a single piece or as multiple pieces fits over the rear cover panel with a lip engaging onto the peripheral wall to which it is connected by latches. A stiffener member extends across the rear wall and closes the slots. A similar stiffener member can be attached across the front panel portion. Both the rear panel and the front panel are manufactured from glass fibre reinforced resin allowing the product to be manufactured in lightweight. The front cover panel can therefore be readily removed to allow replacement of the belt.

REFERENCES:
patent: 3811340 (1974-05-01), Morse
patent: 3927578 (1975-12-01), Mattila
patent: 4245518 (1981-01-01), Toyokuni et al.
patent: 4295383 (1981-10-01), Frost
patent: 4504093 (1985-03-01), Grasse
patent: 5277663 (1994-01-01), Lemme et al.
patent: 5312303 (1994-05-01), Hinschlager
patent: 5520584 (1996-05-01), Brown, III
patent: 5664347 (1997-09-01), Chapman, Sr. et al.

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