Case Corporation

Other

J. I. Case Company

Cnh America LLC

Ronald H Werner

Claude M Frisbee

Ronald L Sealine

Rudolf Horsch

David J Sanning

Sastry P Chimalakonda

Robert Eric Dotseth

Ramakrishna R Nandyala

A bulldozer blade pitch adjuster is disclosed having an adjustable length member with a body and two threaded members threaded into opposing ends of the body, and a cover that can be attached to the body to cover the body and the two threaded members, that can be removed from the body and engaged with the body in a second adjusting position where the cover acts as a wrench to rotate the body, thereby changing the length of the adjustable length member. Once the member is adjusted, the cover can be secured to the body in its first covering position.

Bulldozer blade pitch adjuster

An open retainer cage provides for retaining a threaded female fastener having a non-circular cross section such as a nut adjacent to a surface of a component part for blind-hole fastening. The retainer cage includes a web portion and a plurality of legs extending from the web portion toward the surface of the component part. The plurality of legs are configured to position the web portion parallel to the surface of the component part. At least one of the plurality of legs is affixed to the surface of the component part. An opening is provided between the plurality of legs for receiving the nut within the plurality of legs, the web portion and the surface of the component part. At least one leg is configured to abut the non-circular cross section of the nut for resisting rotation of the nut. The web can also be provided with a tongue extending from the web over an area not occupied by one of the legs. The web and the legs can be integrally formed from a single piece of material and the tongue can be integrally formed with the web. The tongue can be deformed to block the opening or can be provided with a hole configured to receive a blocking device, such as a removable pin or a threaded screw which is used to confine a nut within the retainer cage.

Retainer cage for fastener

A work vehicle having a vehicle parking brake and a method are disclosed involving prevention of brake engagement at speeds beyond a predetermined threshold. The parking brake includes a rotatable plate having one or more pin-receiving openings therethrough radially spaced from the plate axis on an axially concentric circle, and a pin transverse to the plate at the circle, the pin being movable between a retracted position spaced from the plate and an extended position within the opening, such that the plate can rotate or is prevented from rotating depending on pin position. Each pin-receiving opening is bounded by leading and trailing edges, and the pin has a distal end portion, with one of the edge and distal end portion having a deflecting surface angled with respect to the pin axis, preferably a chamfer, such that, when the plate is rotating above a predetermined rate, contact of the trailing edge of the plate opening with the deflecting surface will cam the pin away from the rotating plate toward the retracted position and prevent brake engagement. The pin is preferably spring biased toward its extended position.

Positive-locking vehicular parking brake

A dozer blade pitch adjustment apparatus has a mounting lug and a block supported by the lug for setting a dozer blade at a first pitch or a second pitch. In the improvement, the lug has a mounting surface and the block has a first face contacting such mounting surface when the blade is set at the first pitch. A second face of the block contacts the mounting surface when the blade is set at the second pitch. The block has a surface portion between the lugs and such portion faces generally upwardly when the blade is set at either pitch. A new method for changing the pitch of the blade is also disclosed.

Block apparatus and method for changing dozer blade pitch

The invention is an improvement in a pivot assembly of the type having an inner, generally spherical bearing and an outer race mounted for movement on the bearing surface and defining a bearing-race sliding contact area. The improvement comprises an enclosed grease chamber above the sliding contact area and in gravity flow communication with such area. The assembly has a lower annular passage which can either be left open to permit grease and dirt to flush from the sliding contact area or such passage may be closed with a dynamic seal. The invention helps exclude dirt from the sliding contact area and helps assure that such area is properly lubricated.

Pivot assembly with gravity lubrication feature

A dozer blade has (a) a face plate with an exterior surface, (b) an edge plate having a front surface, and (c) a replaceable cutting portion having a front surface and a thickness. The method includes the steps of forming the face plate to include a curved lower portion and attaching the edge plate to the lower portion. Attachment is at a position generally parallel to the projected exterior surface and spaced from the projected exterior surface by a dimension about equal to the thickness of the cutting portion. The method also includes the step of attaching the cutting portion to the edge plate so that the front surface of the cutting portion and the exterior surface of the face plate are generally coextensive. In that way, a 'step' in the profile of the blade is avoided and material discharges more readily from the blade.

Dozer blade, face plate, and edge plate arrangement

The invention is an in a dozer blade pitch adjustment assembly of the type having a blade pivot pin spaced from a reference line on a dozer blade assembly. The improvement comprises a flip block eccentrically mounted between lugs of the blade assembly for pivoting movement between a first position and a second position. Flipping the block to the first position or to the second position changes the spacing between the pivot pin and the reference line and the pitch of the blade is thereby changed. The block is retained in one position or the other by bolts extending through the lugs and into the block.

Flip block assembly for changing dozer blade pitch

The invention is an improvement in a vehicular clutch and brake control system, well suited for use on a crawler tractor. The system is of the type having a pair of primary pedals each controlling both clutch and brake operation for one track. The improvement includes an auxiliary pedal moving a hinge-mounted clevis to which a swinging link is pivotably mounted. In one operating mode (using only one or both primary pedals), either or both tractor tracks are de-clutched prior to brake application. In another mode, depression of the auxiliary pedal simultaneously depresses both primary pedals and track de-clutching is prevented even though both track brakes are applied. The operator is thereby better able to maintain control of the tractor in operating environments such as steep hills, embankments, foundation back-filling and the like.

Tractor pedal arrangement with anti-declutching feature

The mortar cap receives cementitious materials therewithin, such as cement, mortar, and the like, to define a footing for a catch basin grating, and has a base frame with parallel, spaced-apart walls, and an ancillary frame also with parallel, spaced-apart wall. The base frame is set within the ancillary frame, and the latter is slidably and vertically displaceable relative to the base frame. The ancillary frame has a plurality of knobs projecting from wall surfaces thereof which confront given w=all surfaces of the main frame, and the given wall surfaces of the main frame has a plurality of racks of ribs. With vertical displacement of the ancillary frame, relative to the main frame, the knobs engage the ribs and, as a consequence, the ancillary frame is arrestingly held in the displacement.

Form for a mortar cap

A radiator restraining assembly which permits limited flexing of the radiator while retaining it in its desired position. The radiator restraining assembly generally comprises a ring mounted to the radiator, a resilient bushing within the ring, and a fastener inserted into the bushing. The fastener includes a bearing portion which engages a washer element that is positioned between the bearing portion and the bushing. The restraining assembly holds the radiator in a desired position while allowing flexing of the unit about the axis of the fastener. Moreover, the construction provides longevity to the flexing and shock absorbing characteristics of the assembly.

Radiator restraining assembly

The mortar cap receives cementitious materials therewithin, such as cement, mortar, and the like, to define a footing for a manhole frame, and has a base frame with a pair of concentric, spaced-apart walls, and an ancillary frame, also with a pair of concentric, spaced-apart walls. The base frame is set within the ancillary frame, and the latter is slidably and vertically displaceable relative to the base frame. The ancillary frame has a plurality of knobs projecting from walls thereof which confront given walls of the base frame, and the given walls of the base frame has a plurality of racks of ribs which confront the knobs. With vertical displacement of the ancillary frame, or a sector of the ancillary frame, the latter is arrestingly held in the displacement due to an interference of the knobs and ribs, and an engagement of the knobs with a pair of the ribs.

A visual tilt indicator for an implement, particularly but not exclusively for indicating the tilt angle of a dozer blade on a tractive vehicle, wherein the implement is pivotally supported on the vehicle by an implement universal joint and the support includes hydraulic cylinders operably interconnected between the vehicle and the implement to angle and tilt the implement. The visual tilt indicator of this invention includes an indicator shaft which is operably connected to the vehicle by a universal joint in the vertical axis of the implement support universal joint and the shaft extends horizontally adjacent the implement to indicate the tilt angle of the implement relative to the vehicle. The implement preferably includes a plurality of shaft support indicator means, such as brackets, which receive and slidably support the indicator shaft on the implement to indicate the relative movement of the shaft and the implement. In the preferred embodiment for indicating the tilt of a bulldozer blade, a plurality of brackets are mounted on the back of the blade which slidably receive and support the indicator shaft including an indicator bracket which telescopically receives the free end of the shaft providing an accurate visual indication of the relative tilt angle of the blade.

Growing community of inventors

Burlington, IA, United States of America

Ronald H Werner