Patent ID: 7159701

Claim:
In a power take-off including: a. a rigid housing; b. a first bearing end cap located on one end of said housing; c. a second bearing end cap located on another end of said housing; d. an input gear rotatably journalled, relative to said housing, between said end caps; e. an output shaft, rotatably journalled in said end caps, within said housing and extending from one of said end caps; f. a clutch assembly connected between said input gear and said output shaft, said clutch assembly being operable in either an engaged condition, wherein said input gear is connected to drive said output shaft, or a disengaged condition, wherein said input gear is not connected to drive said output shaft, said clutch assembly being responsive to the application of pressurized fluid for being operated in said engaged condition; g. a drag brake assembly being operable in either an engaged condition, wherein said drag brake assembly retards rotation of said output shaft, or a disengaged position, wherein said drag brake does not retard rotation of said output shaft, said drag brake assembly being responsive to the application of pressurized fluid for being operated in said disengaged condition; and h. a conduit for selectively applying pressurized fluid to both said clutch assembly and said drag brake assembly, an improvement in said drag brake assembly comprising: i. a first reaction member located on said output shaft; j. a driven member rotatably affixed but axially movable relative to said output shaft; k. a second reaction member, said second reaction member being said first bearing end cap, a portion of an inner surface of said first bearing end cap being frusto-conical and adapted to engage said driven member when said drag brake assembly is in said engaged condition to retard rotation of said output shaft; and I. a spring member, interposed between said first reaction member and said driven member for biasing said driven member into engagement with said second reaction member, thereby retarding rotation of said output shaft, wherein said driven member takes the form of an annular brake disc having a cylindrical axial extension on one side thereof which, together with an adjacent portion of said output shaft forms an annular chamber.