Charles E Grawey

US Patent:

RE38858, Nov 1, 2005

Filed:

Jan 13, 2001

Appl. No.:

09/759863

Inventors:

Charles E. Grawey - Peoria IL, US
Robert J. Grob - Peoria IL, US
Cullen P. Hart - Surprise IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B62D055/88
B62D055/104
B62D055/24

US Classification:

180 921, 305111, 305170

Abstract:

An elastomeric belt laying vehicle is disclosed for transmitting greater tractive effort to the earth as compared to comparably powered wheel vehicles and being operable at high speed on improved road surfaces without inflicting damage thereto. A pair of the wheels are arranged on each lateral side of the vehicle's chassis for support thereof. An inextensible, endless belt is highly tensioned throughout its length, is entrained about each pair of wheels, and is frictionally, drivingly coupled to at least one wheel of each pair. The structure of the belt, structure of the wheels and cooperating components thereof ensure engagement therebetween, provides long service with minimum maintenance thereof, and supplies the necessary frictional couple to effectively transmit driving torque from the wheels to the belt.

US Patent:

41811690, Jan 1, 1980

Filed:

Jan 16, 1976

Appl. No.:

5/649616

Inventors:

Charles E. Grawey - Peoria IL
Robert W. Untz - Hanna City IL
Keith E. Koch - Tremont IL

Assignee:

Caterpillar Tractor Co. - Peoria IL

International Classification:

B60C 500

US Classification:

152404

Abstract:

A rim for a pneumatic tire carcass has a pair of rim portions which are securable together to form such rim. One rim portion is integral with a wheel hub and includes a plurality of pockets or guide openings formed therein. The other rim portion includes guide members which correspond to these pockets and which are positionable therein to position the rim portions relative to each other. Apparatus for separating the rim portions with the tire carcass mounted on them is disclosed, as is apparatus for pulling the tire carcass off a rim portion after the other rim portion has been separated therefrom. In another embodiment, a pair of rim portions are assembled by positioning posts fixed on one rim portion into angled slots defined by the other rim portion, and rotating one rim portion relative to the other, the posts being drawn into the slots during such rotation to draw the rim portions together. In yet another embodiment, the tire carcass is supplied with an inner peripheral stiffener, which is seatable in a groove formed by a pair of fixed-together rimmed portions to center the tire carcass thereon. Also, another embodiment includes an annular plate and rim portions mounted in spaced relationship on either side thereof.

US Patent:

40440850, Aug 23, 1977

Filed:

Jun 20, 1975

Appl. No.:

5/588732

Inventors:

Charles E. Grawey - Peoria IL

Assignee:

Caterpillar Tractor Co. - Peoria IL

International Classification:

B29C 1704
B29H 1500

US Classification:

264 90

Abstract:

In the formation of an elastomeric tube or the like on a toroidal core, elastomeric material is applied to the core generally along one side of the core, and force-applying means are utilized to press annular portions of the so-deposited elastomeric material onto the core. Cutting means are also included for cutting away elastomeric material not deposited on the core. The core and elastomeric material deposited thereon are then turned over and the operation is repeated, whereby elastomeric tube means or the like are provided on the toroidal core.

US Patent:

45208689, Jun 4, 1985

Filed:

Nov 22, 1982

Appl. No.:

6/443811

Inventors:

Charles E. Grawey - Peoria IL

Assignee:

Caterpillar Tractor Co. - Peoria IL

International Classification:

F28F 904

US Classification:

165158

Abstract:

A heat exchanger (10) having a plurality of longitudinally-extending tubes (16) disposed within a shell (12) includes an elastomeric end plate (18) and means (22) for compresing the elastomeric end plate (18) and expanding the plate in the longitudinal direction and internal vibration-damping baffle plates (28). Conventional metal heat exchangers of brazed construction are prone to cracking and failure. More recently, heat exchangers having an end wall assembly comprising an elastic medium disposed between movable pressure plates has been proposed. Among other problems, the movable pressure plates are required to have clearance holes for the free passage of tubes therethrough and are consequently severely limited to the number and density of tubes that may be accommodated in a heat exchanger of such a design. The present invention avoids the problems of the prior art by providing an end wall assembly for a heat exchanger (10) wherein an elastomeric end plate (18) is mounted under compression in only a direction transverse to the tubes (16) passing through the plate (18). The elastomeric end plate (18) is not restrained in a longitudinal direction with respect to the tubes (16) and as a result of the transversely-applied compression force, the end plate (18) is expanded in the longitudinal direction.

US Patent:

D2986329, Nov 22, 1988

Filed:

May 9, 1985

Appl. No.:

6/732475

Inventors:

Charles E. Grawey - Peoria IL
Robert J. Grob - Peoria IL
Cullen P. Hart - Peoria IL

Assignee:

Caterpillar Inc. - Peoria IL

US Classification:

D15 28

US Patent:

42627044, Apr 21, 1981

Filed:

Jul 9, 1979

Appl. No.:

6/055674

Inventors:

Charles E. Grawey - Peoria IL

Assignee:

Caterpillar Tractor Co. - Peoria IL

International Classification:

F16L 1108

US Classification:

138130

Abstract:

Hydraulic circuits having flexible hydraulic hoses forming part of the circuits are currently being operated at pressures in excess of 3,000 psi, and such circuits are often limited in their operating pressure by the burst strength of the hydraulic hose. By constructing a hollow core structure that forms the conduit and which serves as the foundation upon which the reinforcing is applied, with a two-layer tape composed of a layer of fabric and a layer of elastomer, which tape is then wound on a mandrel in a helically overlapping relationship with the fabric on the outside, an improved hose can be obtained after the reinforcing is applied. An increase in burst strength can be obtained in such a hose where wire cable is employed as the reinforcing in place of monofilament wire reinforcing, when the cable is formed (twisted) as it is applied, to achieve a more uniform tension on each of the strands forming the cable encircling the core structure.

US Patent:

D2985403, Nov 15, 1988

Filed:

May 9, 1985

Appl. No.:

6/732486

Inventors:

Charles E. Grawey - Peoria IL
Robert J. Grob - Peoria IL
Cullen P. Hart - Peoria IL

Assignee:

Caterpillar Inc. - Peoria IL

US Classification:

D15 28

US Patent:

39989186, Dec 21, 1976

Filed:

Jan 16, 1976

Appl. No.:

5/649629

Inventors:

Charles E. Grawey - Peoria IL
Glenn A. Ball - Peoria IL
Donald G. Zook - Metamora IL

Assignee:

Caterpillar Tractor Co. - Peoria IL

International Classification:

B29C 102

US Classification:

264109

Abstract:

Method of making an annular sand core portion by shaping sand and binder in an annular mold with an inflatable bladder. The bladder is inflatable and expandable to form and press sand core material between itself and the mold body while exerting uniform compressive force over the total surface area of the core material thereby forming a portion of a hollow core of precise external dimension and uniform overall strength.