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Patent Searching and Data



Servomotor systems without provision for follow-up action
Details of servomotor systems
Fluid-actuated devices for displacing a member from one position to another
Safety arrangements
Common features
Intensifiers or fluid-pressure converters, e.g. pressure exchangers
Systems in which the movement produced is definitely related to the output of a volumetric pump
Servomotors with follow-up action
Fluid-circuit elements predominantly used for computing or control purposes
Fluid dynamics, i.e. methods or means for influencing the flow of gases or liquids


Devices for securing together, or preventing relative movement between, constructional elements or machine parts
Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
Jointing of furniture or the like, e.g. hidden from exterior
Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other
Bolts without screw-thread
Friction-grip releasable fastenings
Means for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding it
Specially-shaped heads of bolts or screws for rotations by a tool
Screws that form threads in the body into which they are screwed, e.g. wood screws, self-tapping screws
Screwed connections specially modified in view of tensile load
Features common to bolt and nut
Nuts or like thread-engaging members
Locking of screws, bolts, or nuts
Shrinkage connection, e.g. assembled with the parts at different temperature
Measures against loss of bolts, nuts, or pins
Washers or equivalent devices
Suction cups for attaching purposes
Joining sheets or plates to one another or to strips or bars parallel to them
Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
Connections of rods or tubular parts to flat surfaces at an angle
Flexible shafts
Rolls, drums, discs, or the like
Sliding-contact bearings
Bearings with rolling contact
Bearings adjustable for aligning or positioning
Bearings adjustable for wear or play
Elastic or yielding bearings or bearing supports
Bearings for parts moving only linearly
Bearings not otherwise provided for
Parts of bearings
Rigid support of bearing units
Relieving load on bearings
Other accessories
Assembling bearings
Connecting-rods or like links pivoted at both ends
Bearings for crankshafts or connecting-rods
Couplings for rigidly connecting two coaxial shafts or other movable machine elements
Clutches in which the members have interengaging parts
Friction clutches
Systems comprising a plurality of mechanically-actuated clutches
Details of mechanically-actuated clutches not specific for one distinct type
Fluid-actuated clutches
Magnetically-actuated clutches
Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation
Yielding couplings
Fluid couplings or clutches with pumping sets of the volumetric type
Rotary fluid couplings or clutches of the hydrokinetic type
Freewheels or freewheel clutches
Internally controlled automatic clutches
External control of clutches
Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
Liquid-resistance brakes
Self-acting brakes, e.g. coming into operation at a predetermined speed
Brakes not otherwise provided for
Parts or details
Arrangements for monitoring working conditions, e.g. wear, temperature
Combinations of couplings and brakes
Friction linings
Slip couplings, e.g. slipping on overload, for absorbing shock
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
Suppression of vibrations in systems
Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
Belts, cables, or ropes, predominantly used for driving purposes; Chains; Fittings predominantly used therefor
Toothed gearings for conveying rotary motion
Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
Gearings comprising primarily only links or levers, with or without slides
Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
Gearings or mechanisms with other special functional features
Combinations of mechanical gearings, not hereinbefore provided for
Rotary fluid gearing using pumps and motors of the volumetric type
Rotary fluid gearing of the hydrokinetic type
Combinations of fluid gearings for conveying rotary motion with couplings or clutches
Combinations of mechanical gearing with fluid clutches or fluid gearing
Differential gearings
Other gearing
Elements with teeth or friction surfaces for conveying motion
General details of gearing
Control inputs to change-speed- or reversing-gearings for conveying rotary motion
Control outputs to change-speed- or reversing-gearings for conveying rotary motion
Gearings for conveying rotary motion by endless flexible members
Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
Engine or like cylinders
Covers or similar closure members for pressure vessels in general
Piston-rings, seats therefor
Lift valves
Multiple-way valves, e.g. mixing valves
Check valves
Safety valves
Fluid-delivery valves
Devices, e.g. valves, for venting or aerating enclosures
Details relating to contact between valve members and seats
Construction of housings
Gate valves or sliding valves
Operating means
Means to prevent accidental or unauthorised actuation
Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Devices for relieving the pressure on the sealing faces
Spindle sealings
Means in valves for absorbing fluid energy
Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
Other details not peculiar to particular types of valves or cut-off apparatus
Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage
Laying or reclaiming pipes
Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
Screw-threaded joints
Joints with packing adapted to sealing by fluid pressure
Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
Joints with sleeve or socket
Flanged joints
Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L 13/00-F16L 23/00
Adjustable joints
Joints with fluid cut-off means
Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
Arrangements for connecting hoses to rigid members
Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
Couplings of the quick-acting type
Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
Branching pipes
Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
Devices for use where pipes, cables or protective tubing pass through walls or partitions
Heating or cooling pipes or pipe systems
Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Protection of pipes or objects of similar shape against external or internal damage or wear
Protection of pipes or pipe fittings against corrosion or incrustation
Thermal insulation in general
Supporting pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
Rigid pipes
Safety devices in general
Constructional elements in general; Structures built-up from such elements, in general
Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours
See Also: Building