Class   37	EXCAVATING
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300

GRAVE DIGGER

301

LAND CLEARER

302

. (1 indent ) Tree or stump remover

303

. (1 indent ) Stone remover

3

PEAT EXCAVATORS

196

SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE

197

. (1 indent ) Process

198

. (1 indent ) Railway clearer

199

.. (2 indent ) With melter

200

... (3 indent ) Heated plow

201

.. (2 indent ) Explosive

202

.. (2 indent ) Fluid current conveyor

203

.. (2 indent ) For clearing single rail of set

204

... (3 indent ) Electrified rail

205

... (3 indent ) Including rotary excavating tool

206

.... (4 indent ) And scraper blade

207

... (3 indent ) Including means clearing side of, or groove in, rail

208

.. (2 indent ) With endless conveyor

209

.. (2 indent ) Having rotary excavating tool

210

... (3 indent ) Plural rotary tools

211

.... (4 indent ) Diverse tools performing different stages of operation

212

.... (4 indent ) And V-shaped scraper blade

213

... (3 indent ) Screw-type auger

214

.. (2 indent ) Having scraper blade

215

... (3 indent ) Inclined plane with V-divider

216

.... (4 indent ) Having auxiliary blade or shiftable divider

217

... (3 indent ) V-shaped

218

... (3 indent ) Diagonal

219

. (1 indent ) Snow or ice surface groomer

220

.. (2 indent ) Including rut cutter

221

.. (2 indent ) Having diverse tools

222

... (3 indent ) Including rotary tool

223

.. (2 indent ) Having rotary tool

224

... (3 indent ) Compacting roller

225

. (1 indent ) With compressor die

226

.. (2 indent ) And heater

227

. (1 indent ) With melter

228

.. (2 indent ) Having heated transport chamber

229

... (3 indent ) Electric or solar heat source

230

.. (2 indent ) Manually powered

231

. (1 indent ) With specific means to facilitate connection to, or disconnection from, vehicle

232

. (1 indent ) Vehicle mount with obstacle responsive trip, or yieldable tool (e.g., brush)

233

.. (2 indent ) Resilient impeller or blade

234

. (1 indent ) Including specific hydraulic control system to position implement

235

. (1 indent ) Vehicle mount including power lift

236

.. (2 indent ) Power means is hydraulically actuated piston

237

. (1 indent ) With endless conveyor

238

.. (2 indent ) And rotary excavating tool

239

.. (2 indent ) Multistage conveyors

240

.. (2 indent ) Carrying excavating tool

241

. (1 indent ) Combined or convertible

242

.. (2 indent ) Rotary excavating tool

243

... (3 indent ) Lawnmower

244

. (1 indent ) Motorized rotary excavating tool

245

.. (2 indent ) Tool arresting means responsive to sensed condition

246

.. (2 indent ) Electric motor drive

247

.. (2 indent ) Rotor shaft adjustable relative to direction of travel

248

.. (2 indent ) Diverse multistage rotary tools or tool portions (e.g., feeding and throwing, etc.)

249

... (3 indent ) Including screw-type auger for first stage

250

.... (4 indent ) Augers on separate shafts

251

.... (4 indent ) And centrifugal impeller for final stage

252

....• (5 indent ) Auger and impeller on single shaft

253

.. (2 indent ) Fed by scraper blade

254

... (3 indent ) Including screw-type auger

255

.... (4 indent ) Augers on separate shafts

256

... (3 indent ) Including centrifugal impeller

257

.. (2 indent ) Screw-type auger

258

... (3 indent ) Having plural vane segments

259

.. (2 indent ) Centrifugal impeller

260

.. (2 indent ) Having specific flow guide

261

... (3 indent ) Having motor powered adjustment

262

... (3 indent ) Vane within chute controls flow path

263

. (1 indent ) Tool prepares wheel path for passage of wheel

264

. (1 indent ) Scoop

265

.. (2 indent ) Manually powered

266

. (1 indent ) Scraper blade

267

.. (2 indent ) Invertible

268

.. (2 indent ) Pulled (e.g., by horse or vehicle)

269

... (3 indent ) V-shaped

270

.. (2 indent ) Mounted on surface contacting support or guide

271

... (3 indent ) For adjusting height of blade

272

.. (2 indent ) V-shaped

273

... (3 indent ) Adjustable or collapsible apex

274

... (3 indent ) And auxiliary wing or extension

275

.... (4 indent ) Top flap

276

... (3 indent ) Diverging forwardly

277

... (3 indent ) Supported on inclined plane

278

... (3 indent ) Manually powered

279

.. (2 indent ) Diagonally oriented

280

... (3 indent ) Including side gate discharge preventer

281

... (3 indent ) And auxiliary wing or extension

282

... (3 indent ) Supported on inclined plane

283

... (3 indent ) Adjustable about central vertical hinge

284

... (3 indent ) Manually powered

285

. (1 indent ) Manually powered

304

SELF-LOADING VEHICLE

305

. (1 indent ) Having endless digger or conveyor

306

. (1 indent ) Elevating wheel

307

BENEATH A BODY OF WATER (E.G., DREDGER)

308

. (1 indent ) With signal, scale, indicator, or inspection means

309

. (1 indent ) With means to control dredger operation (e.g., movement of dredged material) in response to sensed condition

310

.. (2 indent ) Swell compensator

311

.. (2 indent ) Suction relief valve

312

.. (2 indent ) Control of swing or swing speed

313

. (1 indent ) By use of submarine or undersea vessel

314

. (1 indent ) Adapted to excavate specific discrete material

315

.. (2 indent ) Shellfish

316

... (3 indent ) Including rake or scoop structure

317

. (1 indent ) Suction

318

.. (2 indent ) Having intake screen

319

... (3 indent ) And material size reducer (e.g., crusher)

320

.. (2 indent ) With pumping chamber

321

.. (2 indent ) With means to introduce lift agent directly into suction pipe

322

... (3 indent ) With downstream directed jet nozzle

323

.. (2 indent ) With fluid jet digger adjacent suction inlet

324

.. (2 indent ) Including driven digger adjacent suction inlet (e.g., cutterhead dredger)

325

... (3 indent ) With specific bearing, or means to lubricate or seal

326

... (3 indent ) Rotary

329

.... (4 indent ) Axis transverse with respect to suction pipe

330

.... (4 indent ) Axis vertical with respect to surface of body of water

331

.... (4 indent ) Axis longitudinal with respect to suction pipe

327

.... (4 indent ) Specific cutterhead structure

328

....• (5 indent ) Including distinct tooth or tooth mounting

332

... (3 indent ) Endless

333

.. (2 indent ) Draghead dredger (e.g., dustpan dredger)

334

.. (2 indent ) With pipe suspension or support (e.g., ladder structure)

335

.. (2 indent ) Pipe or nozzle structure

336

... (3 indent ) With coupling (e.g., connector)

337

. (1 indent ) Rotary digger (e.g., bucket wheel)

338

. (1 indent ) Endless

339

.. (2 indent ) Specific bucket structure

340

. (1 indent ) Grab

341

. (1 indent ) Scoop or bucket

342

. (1 indent ) With means to scour or scrape (e.g., propeller means, digging teeth, plow)

343

.. (2 indent ) Rotary digging element

344

.. (2 indent ) Nozzle

345

. (1 indent ) With vessel, propulsion, or anchor structure (e.g., bank spud, spud brace)

346

.. (2 indent ) Bottom spud anchor

347

DITCHER

348

. (1 indent ) Condition responsive

349

. (1 indent ) With crumber

350

. (1 indent ) Having screw digger

351

.. (2 indent ) With conveyor

352

. (1 indent ) Having endless digger

353

.. (2 indent ) Endless bucket

354

... (3 indent ) Transverse cut

355

... (3 indent ) Longitudinal cut

356

.... (4 indent ) With side cutters

357

.... (4 indent ) With distinct rotary digger

358

.... (4 indent ) Reciprocating endless digger

359

.... (4 indent ) With longitudinal endless conveyor

360

.... (4 indent ) With transverse endless conveyor

361

....• (5 indent ) Drive-related feature

362

.... (4 indent ) Drive-related feature

363

.... (4 indent ) Hand operated

364

. (1 indent ) With side or auxiliary cutter

365

.. (2 indent ) Rotary

91

. (1 indent ) Wheel excavator

92

.. (2 indent ) Longitudinal axis

93

... (3 indent ) Conveyor

94

.. (2 indent ) Transverse axis

95

... (3 indent ) Conveyor

96

.... (4 indent ) Longitudinal endless

97

.... (4 indent ) Transverse endless

366

. (1 indent ) Plow

367

.. (2 indent ) Slit ditcher

368

... (3 indent ) Including longitudinal endless conveyor

369

.... (4 indent ) And transverse endless conveyor

370

.. (2 indent ) Mole plow

372

.. (2 indent ) With plow supported wheel or supported on wheel frame

373

.. (2 indent ) With conveyor

374

... (3 indent ) Wheel and belt

375

... (3 indent ) Longitudinal endless conveyor

376

.... (4 indent ) And transverse endless conveyor

377

....• (5 indent ) With colter

378

.. (2 indent ) With colter

379

. (1 indent ) Shovel or scoop

380

.. (2 indent ) Slit ditcher

104

RAILWAY GRADERS

105

. (1 indent ) Side former

106

.. (2 indent ) Scoop

107

... (3 indent ) Endless conveyor

381

ROAD GRADER-TYPE

382

. (1 indent ) Condition responsive

383

. (1 indent ) Including ground supported, grader guiding rail

384

.. (2 indent ) Adjustable digger

385

... (3 indent ) Rotary digger

386

. (1 indent ) Rotary digger

387

.. (2 indent ) Adjustable

388

. (1 indent ) Transverse endless digger

389

. (1 indent ) Plow with transverse endless conveyor

390

.. (2 indent ) Disc plow

391

. (1 indent ) Plow with transverse conveyor wheel

392

.. (2 indent ) And endless conveyor

393

. (1 indent ) Plow with inclined axis conveyor wheel

394

CABLE-OPERATED (E.G., DRAGLINE)

395

. (1 indent ) Boom-type

396

.. (2 indent ) Including means to control digging, hoisting, and dumping

397

.. (2 indent ) Including mounting or support structure (e.g., boom support, sheave or pulley support)

398

. (1 indent ) Scoop or bucket

399

.. (2 indent ) Including support or mounting device (e.g., hitch, shackle, lifting or dumping trunion)

400

. (1 indent ) Trolley-supported

401

.. (2 indent ) Including cable or rope control means to facilitate loading, transporting, or dumping

403

COMBINED OR CONVERTIBLE

468

. (1 indent ) Having quick-connect coupling

404

. (1 indent ) Combined with subsoiler

405

. (1 indent ) Combined with fork or rake

406

. (1 indent ) Combined with clamp, grapple, or shear

407

. (1 indent ) With scraper

408

.. (2 indent ) Integrally mounted to a tool body and independently usable by re- positioning the tool body

409

.. (2 indent ) Multicomponent tool (e.g., scoop or bucket) convertible by relative movement of tool parts

410

.. (2 indent ) Separate tools simultaneously mounted and independently usable

411

SCOOP OR EXCAVATING AND TRANSPORTING CONTAINER

413

. (1 indent ) With alarm, indicator, signal, or inspection means

412

. (1 indent ) Supported on vehicle between longitudinally spaced ground supports

414

.. (2 indent ) Condition responsive or programmable means controls the excavating operation

415

... (3 indent ) Control of attitude or depth of cut

416

... (3 indent ) Control of scoop component (e.g., elevator, apron, or ejector)

417

.. (2 indent ) With specific suspension or means to steer or facilitate mounting of implement on vehicle

418

.. (2 indent ) With tandem or plural scoops or compartments

419

.. (2 indent ) With means to aid loading or load distribution

420

... (3 indent ) By auger

421

... (3 indent ) By digging movement of apron

422

... (3 indent ) By endless conveyor

423

.... (4 indent ) With particular conveyor feature including drive means

424

.. (2 indent ) With coaction between apron or elevator and bowl

425

... (3 indent ) Actuated by fluid means

426

.. (2 indent ) With coaction between apron or elevator and ejector

427

.. (2 indent ) With significant bowl structure or manipulation

428

... (3 indent ) Actuated by fluid means

429

.. (2 indent ) With significant apron structure or manipulation

430

... (3 indent ) Actuated by fluid means

431

.. (2 indent ) With particular unloading feature

432

... (3 indent ) Rear unloading

433

... (3 indent ) Revolving-type

435

. (1 indent ) Mounted rearwardly of vehicle

467

.. (2 indent ) Handled or hand operated

436

.. (2 indent ) Bowl operatively connected to wheel axle

437

... (3 indent ) Including rear unloading

438

.... (4 indent ) Actuated by fluid means

439

... (3 indent ) With caster wheel or shoe

440

... (3 indent ) Lever and latch mechanism

441

.. (2 indent ) Dumping runner or revolving-type

434

. (1 indent ) Manually operated (e.g., two-wheel barrow)

442

. (1 indent ) Pushed forwardly of vehicle for filling

443

. (1 indent ) Dipper-type (e.g., backhoe bucket)

444

. (1 indent ) Scoop or bucket structure, per se

445

.. (2 indent ) Including door structure or operator

446

DIGGING EDGE

447

. (1 indent ) Oscillating or reciprocating

448

. (1 indent ) Corner guard (e.g., corner tooth)

449

. (1 indent ) Repositionable digging edge (e.g., reversible)

450

. (1 indent ) Removable digging edge having integral tooth adaptor

451

. (1 indent ) Distinct wear element mounted between teeth

452

. (1 indent ) Tooth or adaptor

453

.. (2 indent ) Having wear cap

454

.. (2 indent ) Repositionable or replaceable tooth (e.g., reversible)

455

.. (2 indent ) Mounting or retaining means

456

... (3 indent ) Including pin or key

457

.... (4 indent ) Having resilient elastomeric element

458

.... (4 indent ) Having resilient metallic element

459

....• (5 indent ) Wire or rod formed

460

. (1 indent ) Specific material (e.g., specialty steel, heat treatment of material, specific hardness test)

142.5

DITCH FILLER

182

ORANGE-PEEL BUCKETS

461

CLAMSHELL BUCKET

184

. (1 indent ) Common pivot

185

.. (2 indent ) Crossed lever

186

. (1 indent ) Contiguous pivots

187

. (1 indent ) Spaced pivots

188

. (1 indent ) Link-connected

189

ROTARY DIGGER

190

. (1 indent ) Endless conveyor

462

ENDLESS DIGGER

463

. (1 indent ) With endless conveyor

464

.. (2 indent ) Having nonbucket-type digging means

465

. (1 indent ) Digging chain, bucket, blade, or tooth structure, per se

195

PROCESSES

466

MISCELLANEOUS

	CROSS-REFERENCE ART COLLECTIONS

901

BUCKET CLEANERS

902

HYDRAULIC MOTORS

903

SCOOP OR SCRAPER ATTACHMENTS

904

VIBRATION MEANS FOR EXCAVATING TOOL

905

NONDREDGE EXCAVATING BY FLUID CONTACT OR EXPLOSION

906

VISUAL AIDS AND INDICATORS FOR EXCAVATING TOOL

907

AUTOMATIC LEVELING EXCAVATORS

908

CANAL CLEANERS

	FOREIGN ART COLLECTIONS

FOR000

CLASS-RELATED FOREIGN DOCUMENTS

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