Inventor

ALLEN J DEWAYNE

US74 patents

⚠️ This page may combine multiple inventors who share the name “ALLEN J DEWAYNE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALLEN J DEWAYNE

ALLEN ENG CORP

Transformable two-person floating screed with automatic grade control

Concrete saw with stabilized carriage and blade control

Torsional automatic grade control system for concrete finishing

Rotating tube concrete finisher

Light weight, fast steering riding trowel

Polymer concrete paving machine

Compartmentalized access shroud system for riding trowels

Guard for walk behind trowel

High performance triple rotor riding trowel

High performance contra-rotating riding trowel

Obstacle bypass system for concrete finishing tools

Floating vibrational screed

Material spreader system

Vibratory screed including a laterally displaceable oscillating strike-off

Material spreader system

Lightweight concrete form having a detachable equipment rail

Vibratory screed including a spreading device for leveling and distributing plastic concrete in front of the screed

Triangular truss concrete screed having a blade extension bracket

High density concrete placer

Acoustically matched concrete finishing pans

Method and apparatus for acoustically matched slip form concrete application

Acoustic impedance matched concrete finishing

Edge guarded power riding trowel

Dual rotor riding trowel with proportional electro-hydraulic steering

Hydraulically controlled twin rotor riding trowel

Surface finishing machine with rotatable guard

Universal bridge deck vibrating system

Riding trowel with variable ratio transmission

Hydraulically controlled riding trowel

Riding trowel for concrete finishing

Hydraulically driven, multiple rotor riding trowel

Hydraulically driven, multiple rotor riding trowel

Finishing trowel pitch control and clutch system

Laser operated automatic grade control system for concrete finishing

Acoustically matched method and apparatus for screeding concrete

Riding trowel having edge guards with safety covers

Concrete screed with curb forming apparatus

Triangular truss concrete screed having a pan float finisher attachment

Concrete topping spreader system

Power trowel with cam-actuated blade pitch adjustment mechanism

Guard for walk behind trowel

Quick access shroud system for riding trowels

ALLEN ENGINEERING INC

Offset screed system and quick connect mounting therefore

Variable width, twin engine riding trowel

High performance twin engine rotor-steered riding trowel

Concrete riding trowel guard clearance system

ALLEN ENG CORPORATION

Riding trowel cranking dolly wheel assembly

Riding trowel for concrete finishing

Riding trowel

ALLEN ENGINEERING CORP INC

Triple roller tube concrete finisher