Manual of U.S. Patent Classification
as of June 30, 2000

Class
405
HYDRAULIC AND EARTH ENGINEERING

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> HYDRAULIC AND EARTH ENGINEERING
1		MARINE VESSEL PORTAGE, LAUNCHING, OR REMOVING
2		. Rail mounted carrier
3		. Lifting
4		. Dry dock
5		. . Fabrication
6		. . Gate
7		. . Vessel support (e.g., bilge or keel block)
8		PRESSURIZED CAISSON
9		. Having lifting cable
10		. Movable relative to mobile support
11		MEANS TO EXPOSE A NORMALLY WETTED SURFACE,E.G., COFFERDAM, ETC.
12		. Contoured to wetted surface, e.g., side hung ship caisson
13		. Having transport, placement, or dislodgement means
14		. Connectable sections
15		BANK, SHORE, OR BED PROTECTION
16		. Revetment
17		. . Revetment laying
18		. . Continuous concrete or concrete filled bag
19		. . Mattress
20		. . . Hinged concrete sections
21		. Wave or flow dissipation
22		. . Fluid application
23		. . Floatable dissipator submerged at site
24		. . Artificial seaweed
25		. . Bed supported subsurface dissipator
26		. . Floating
27		. . . Openwork
28		. . Flexibly suspended from or pivoted to support
29		. . Polypod
30		. . Openwork or concave face
31		. . . Associated with solid wall
32		. . . With fabric
33		. . . Interfitted or interleaved members
34		. . . Jetty
35		. . . Spaced members
36		DRAINAGE OR IRRIGATION
37		. Control means responsive to sensed condition
38		. Including subsurface moisture barrier
39		. Having regulation of flow through channel
40		. . At outlet or intake
41		. . . Riser or standpipe outlet or intake
42		. End cap
43		. Porous or apertured pipe, flume, or tileway
44		. . Uniform discharge
45		. . Porous
46		. . Earthen bottom
47		. . Flow through joint
48		. . Open seam or shielded outlet
49		. . Corrugated
50		. Porous waterway, e.g., sand drain, etc.
51		. Branched flow
52		FLUID CONTROL, TREATMENT, OR CONTAINMENT
53		. Fluid storage in earthen cavity
54		. . With indicator or alarm means
55		. . Cavity construction
56		. . . Including cooling or heating of material surrounding cavity
57		. . . Earth treatment
58		. . . . Dissolving earth
59		. . Supply or recovery of stored fluid by separate fluid
60		. Floatable matter containment
60.5		. . Logging device for guiding logs
61		. . Ice
62		. . Barrier formed by fluid
63		. . Floating barrier
64		. . . Submergible
65		. . . With means to seal space between barrier and fixed structure
66		. . . With barrier storage or deployment feature
67		. . . . Quick release float
68		. . . . Inflatable or deflatable
69		. . . . . Self-inflating
70		. . . Having joint detail
71		. . . . Having hinged joint between rigid sections
72		. . . With reinforcing feature
73		. Erosive scouring
74		. Settling of suspended matter in a specific location (e.g., at a scoured pier)
75		. Extracting power from moving fluid
76		. . Wave or tide
77		. . . With flow restrictor or ramp
78		. . Associated with dam
79		. Wave generation or enhancement
80		. Flow control
81		. . Fishway
82		. . . Elevator
83		. . . Closed channel
84		. . Navigable canal
85		. . . Having lock
86		. . . . Movable lifting member
87		. . Water gate or adjustable weir
88		. . . Center flow
89		. . . Uniform discharge
90		. . . Removable
91		. . . . Flexible
92		. . . Condition responsive
93		. . . . To weight of liquid separated from a main body
94		. . . . To pressure on pivoted water gate
95		. . . . . With latch for closed position
96		. . . . Float
97		. . . . . Having separate float chamber
98		. . . Roller or flexible
99		. . . Swinging
100		. . . . About horizontal axis
101		. . . . . Overflow
102		. . . . . . Collapsible
103		. . . Sliding
104		. . . . Vertical
105		. . . . . Gate unseating
106		. . . . . With lift mechanism or latch
107		. . Artificial water barrier (e.g., dam, levee, etc.)
108		. . . Having spillway
109		. . . Having impervious core
110		. . . Hollow or buttressed
111		. . . . With ballast compartment or cavity
112		. . . . Vertical wall buttress
113		. . . Tension stayed
114		. . . Connectable sections
115		. . . Flexible
116		. . . In situ construction
117		. . . . Earthen
118		. . Open channel
119		. . . Flume
120		. . . . Elbow or tee
121		. . . . Joint
122		. . . . . Including U-clamp
123		. . . . . . With crossbar
124		. . Culvert
125		. . . Terminal or head
126		. . . Serially connected segments
127		. . Intake
128		WASTE DISPOSAL IN SOIL
129		. Landfill
130		TEMPERATURE MODIFICATION OR CONTROL OF EARTHEN FORMATION
131		. Heating
132		UNDERGROUND PASSAGEWAY, E.G., TUNNEL
133		. Vertical
134		. Sectional
135		. . Seal or joint
136		. Subaqueous
137		. . Below bed
138		. Boring
139		. . With auxiliary tunnel
140		. . By axially overlapped members
141		. . Shield
142		. . . With transverse force application feature
143		. . . Direction control
144		. . . Door or bulkhead
145		. . . Discrete independently advanceable earth supporting segments
146		. . . Lining installation
147		. . . Seal
148		. . Work platform
149		. Cut and cover
150.1		. Lining
150.2		. . By spraying of settable material (e.g., concrete)
151		. . Panel
152		. . . With sealing feature
153		. . . With separate fastening means between adjacent panels
154		PIPE OR CABLE LAYING, RETRIEVING, OR UNDERWATER MANIPULATION
155		. Cast in situ
156		. With forming or cutting of pipe or cable
157		. With protection or indication of pipe or trench
158		. Submerging, raising, or manipulating line of pipe or cable in or from marine environment
159		. . Entrenched or buried
160		. . . Condition responsive
161		. . . Entrenching or burying apparatus guided by pre-positioned pipe or cable
162		. . . . With apparatus buoyancy control
163		. . . . With bottom fluidizing means
164		. . . By towing submerged sled with attached plow and pipe or cable guide
165		. . . . With means to forcibly feed or to control tension in pipe or cable
166		. . Facilitated by extension from line-laying vessel
167		. . . Articulated segments
168.1		. . With causing or controlling the deformation of a line
168.2		. . . Buckle arrestor for pipe
168.3		. . . Pipe laying from a reel
168.4		. . . Pipe tensioner
169		. . With assembling of line structure
170		. . . By joining successive sections of line
171		. . By control of buoyancy
172		. . With anchoring of line
173		. . With raising of line from marine floor
174		. By means advancing along terrain and guiding pipe or cable into subterranean position
175		. . Condition responsive
176		. . Tape or strip
177		. . With positive feed or means to vary tension in pipe or cable
178		. . Simultaneous laying of plural parallel pipes or cables
179		. . With backfill or bedding material conveying or dispensing means
180		. . Including trench forming plow with pipe or cable guide
181		. . . With depth adjustment
182		. . . With plow vibrating or oscillating means
183		. . . Guide integral with or rigidly fixed to plow
184		. Advancing subterranean length of pipe or cable
185		DIVING
186		. Suit or accessory therefor
187		. . Rigid element
188		. Underwater docking or mooring
189		. . With communication between inhabitable enclosures
190		. Remote control
191		. . From surface
192		. With air lock
193		. With pressure equalization
194		. With continuous surface access
195.1		MARINE STRUCTURE OR FABRICATION THEREOF
196		. With work deck vertically adjustable relative to floor
197		. . Sectional leg
198		. . Longitudinally extending projections or recesses
199		. . Frictional gripper
200		. . By buoyancy control
201		. With horizontally movable work deck
202		. With pivotal connection between work deck and base
203		. Floatable to site and supported by marine floor
204		. . With assembly of sectional supporting structure at site
205		. . With ballasting means to sink or position structure at site
206		. . . Detachable from structure
207		. . . Compartment in base
208		. . . . And leg depending from base
209		. . Separable transport means
210		. Storage container
211		. Structure protection
211.1		. . Corrosion prevention
212		. . Fender
213		. . . Roller type
214		. . . Having coil spring
215		. . . Resilient block
216		. . Sleeve or coating
217		. In or on frozen media
218		. Dock
219		. . Floating
220		. . Hinged
221		. . Vertically adjustable
222		. Cast in situ
223		. . Installing means
223.1		. Tension leg platform
224		. With anchoring of structure to marine floor
224.1		. . Pressure holding or loosening means
224.2		. . By riser pipe
224.3		. . . Having flexible segment
224.4		. . . Having tensioner
225		. . By grouting preformed structure
226		. . Including floor modifying means
227		. . By pile extending through sleeve in structure
228		. . Pile driving
229		FOUNDATION
230		. Underpinning
231		. Columnar structure (e.g., pier, pile)
232		. . Process or apparatus for installing
233		. . . Casting in situ hardenable fluent material
234		. . . . With heating, cooling, or explosion
235		. . . . With subsequent moving
236		. . . . Subsurface dispensing of material for flow toward surface
237		. . . . Forming subsurface enlargement
238		. . . . . Preformed enlargement cavity
239		. . . . Providing embedded metallic reinforcement
240		. . . . Dispensing fluent material while withdrawing dispenser
241		. . . . . Dispensing auger
242		. . . . . Driven dispenser with separable tip
243		. . . . Withdrawing form structure
244		. . . With anchoring of structure
245		. . . Driving removable wall supporting core
246		. . . . Diametrically retractable core
247		. . . . . Fluid pressure actuated
248		. . . With subsurfacr fluid discharge
249		. . . Caisson or hollow shaft
250		. . Comprising series of connected longitudinal sections having diverse compositions
251		. . With joint or connection between sections of similar material
252		. . . Between concrete sections
252.1		. . Pile having screw threads
253		. . With driving or cutting tip
254		. . . Longitudinally ribbed
255		. . With end cap
256		. . Concrete
257		. . . With form or casing
258		EARTH TREATMENT OR CONTROL
259.1		. Rock or earth bolt or anchor
259.2		. . Frangible bolt
259.3		. . Expandable tube
259.4		. . Bolt having wedge expander
259.5		. . With settable material feature
259.6		. . . Breaking canister or packet
262		. . With retaining wall
263		. Chemical
264		. . Organic
265		. . . Bituminous
266		. . Cementitious (e.g., grouting)
267		. . . Filling substerranean cavity (e.g., underground wall)
268		. . . Lining
269		. . . Injector
270		. Impermeabilization
271		. Compaction
272		. Shoring, bracing, or cave-in prevention
273		. . Cribbing
274		. . Sheet piles
275		. . . Concrete
276		. . . Metal
277		. . . . C or I sections
278		. . . . Head and claw interlock
279		. . . . With separate fastening, reinforcing or sealing means
280		. . . . Cellular
281		. . . . Bulb and socket interlock
282		. . Trench shoring
283		. . . Shield type
284		. . Retaining wall
285		. . . Pile and panel
286		. . . Concrete
287		. . . . Cast in situ
287.1		. . Cast in situ
288		. . Roof support
289		. . . Inflatable
290		. . . Jack
291		. . . . Mobile
292		. . . . . Position restoring
293		. . . . . With canopy extension
294		. . . . . . Telescoping
295		. . . . . Cantilevered
296		. . . . . With rubble shield
297		. . . . . With contour following feature
298		. . . . . Under load advanceable
299		. . . . . Self-advanceable
300		. . . . . . Paired
301		. . . . . . . Nested
302		. . . . . Control system
302.1		. . . Subterranean roof plate
302.2		. . . Cable or strap support
302.3		. . . Mesh support
303		MISCELLANEOUS

Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

---

Last Modified: 6 October 2000