Patents by Inventor Randall R. Bendtsen
Randall R. Bendtsen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 6766886Abstract: A brake apparatus includes a brake disk secured to a shaft and a reaction plate secured to a housing. The brake apparatus further includes a fluid actuated piston which urges the brake disk against the reaction plate to slow rotation of the shaft and an adjustment member positioned by the piston. The brake apparatus yet further includes a spring interposed between the adjustment member and the piston. The piston positions the adjustment member relative to the brake disk when fluid is applied to said piston. The spring urges the piston away from the adjustment member and brake disk when fluid pressure is removed from the piston.Type: GrantFiled: August 30, 2002Date of Patent: July 27, 2004Assignee: Caterpillar Inc.Inventors: Randall R. Bendtsen, Jens M. Erp, Mark D. Fabry, Alan D. Gustafson, Cary J. Lyons
-
Patent number: 6530859Abstract: A final drive assembly for transmitting torque from a drive source to an output device is provided. The final drive assembly includes a non-rotatable housing, a rotatable shaft defining an outer surface, a gear assembly, at least one bearing assembly, and a bushing. The gear assembly is configured to be couple to the drive source. The gear assembly is coupled to the housing and coupled to the shaft through a rotatable member. The rotatable member is configured to transmit torque from the drive source to the shaft and to provide relative radial movement between the shaft and the rotatable member. The bearing assembly is coupled to the housing and configured to rotatably support the rotatable member. The bushing is radially disposed between the rotatable member and the outer surface of the shaft. The bushing, which is configured to transmit substantially all of an external load exerted on the shaft to the rotatable member, is fixedly coupled to one of the rotatable member or the shaft.Type: GrantFiled: August 10, 2001Date of Patent: March 11, 2003Assignee: Caterpillar IncInventors: Michael W. Boston, Randall R. Bendtsen
-
Publication number: 20030037998Abstract: A brake apparatus includes a brake disk secured to a shaft and a reaction plate secured to a housing. The brake apparatus further includes a fluid actuated piston which urges the brake disk against the reaction plate to slow rotation of the shaft and an adjustment member positioned by the piston. The brake apparatus yet further includes a spring interposed between the adjustment member and the piston. The piston positions the adjustment member relative to the brake disk when fluid is applied to said piston. The spring urges the piston away from the adjustment member and brake disk when fluid pressure is removed from the piston.Type: ApplicationFiled: August 30, 2002Publication date: February 27, 2003Inventors: Randall R. Bendtsen, Jens M. Erp, Mark D. Fabry, Alan D. Gustafson, Cary J. Lyons
-
Publication number: 20030032521Abstract: A final drive assembly for transmitting torque from a drive source to an output device is provided. The final drive assembly includes a non-rotatable housing, a rotatable shaft defining an outer surface, a gear assembly, at least one bearing assembly, and a bushing. The gear assembly is configured to be couple to the drive source. The gear assembly is coupled to the housing and coupled to the shaft through a rotatable member. The rotatable member is configured to transmit torque from the drive source to the shaft and to provide relative radial movement between the shaft and the rotatable member. The bearing assembly is coupled to the housing and configured to rotatably support the rotatable member. The bushing is radially disposed between the rotatable member and the outer surface of the shaft. The bushing, which is configured to transmit substantially all of an external load exerted on the shaft to the rotatable member, is fixedly coupled to one of the rotatable member or the shaft.Type: ApplicationFiled: August 10, 2001Publication date: February 13, 2003Inventors: Michael W. Boston, Randall R. Bendtsen
-
Publication number: 20020157905Abstract: A brake apparatus includes a brake disk secured to a shaft and a reaction plate secured to a housing. The brake apparatus further includes a fluid actuated piston which urges the brake disk against the reaction plate to slow rotation of the shaft and an adjustment member positioned by the piston. The brake apparatus yet further includes a spring interposed between the adjustment member and the piston. The piston positions the adjustment member relative to the brake disk when fluid is applied to said piston. The spring urges the piston away from the adjustment member and brake disk when fluid pressure is removed from the piston.Type: ApplicationFiled: April 26, 2001Publication date: October 31, 2002Inventors: Randall R. Bendtsen, Jens M. Erp, Alan D. Gustafson, Cary J. Lyons
-
Patent number: 6146304Abstract: A differential apparatus for transmitting a driving force from a pinion gear supported on an input shaft to a pair of axle output shafts includes a differential case, a ring gear, and a spider gear assembly. The differential case is made from a single piece and includes a longitudinally extending central bore that defines a longitudinal axis. The differential case includes a plurality of longitudinal slots extending along an inner surface of the central bore. A ring gear is supported by the differential casing and is rotatable about the longitudinal axis by the pinion gear connected to the input shaft. The ring gear is preferably welded to the differential casing. The differential apparatus also includes a spider member that has a central body portion with a plurality of legs extending radially outwardly from the body portion. A spider gear is supported on each of the legs. The differential case can be used with either a standard differential or a limited slip differential.Type: GrantFiled: December 22, 1998Date of Patent: November 14, 2000Assignee: Caterpillar Inc.Inventor: Randall R. Bendtsen
-
Patent number: 4440041Abstract: A winch apparatus (8) with a shift control mechanism (10) is disclosed for axially positioning a shaft (66) and effecting low and high speed raising of a load on a winch drum (24) and a centered neutral condition. The winch apparatus (8) advantageously includes first and second piston members (99,100) disposed within a housing (42) and mounted on the shaft (66), first means (122) for fluidically urging the first piston member (99) and the shaft (66) to a first position, second means (124) for fluidically urging the second piston member (100) and the shaft (66) to an opposite position, and centering means (126) for mechanically positioning the shaft (66) therebetween. Easier assembly of the winch apparatus (8) is featured.Type: GrantFiled: September 17, 1981Date of Patent: April 3, 1984Assignee: Caterpillar Tractor Co.Inventor: Randall R. Bendtsen
-
Patent number: 4011957Abstract: An ejector assembly for a material handling vehicle of a type having a bowl or container formed by a relatively fixed container portion and a movable container portion, the movable container element being retractable into a nested position within the fixed container portion for receiving material therein, the movable container portion being movable through the fixed portion to initially remove material therefrom, an ejector assembly including an extendable and retractable jack having a folding link pivotably connected thereto, the jack and folding link being pivotably interconnected between the fixed and movable portions for extension toward a parallel alignment and into engagement with an ejector in order to condition the jack for subsequently operating the ejector to complete removal of material from the bowl.Type: GrantFiled: January 16, 1976Date of Patent: March 15, 1977Assignee: Caterpillar Tractor Co.Inventor: Randall R. Bendtsen