| Patent Number |
Title Of Patent |
Date Issued |
| RE29448 |
Method and apparatus for assembling and joining thermoplastic container sections by friction wel |
October 18, 1977 |
| .Iadd.Method and apparatus for spin-welding thermoplastic articles in which two axially mating sections are driven in rotation relative to each other and then axially abutted in mating relationship. One of the two mating sections is chucked to an inertia member which is brought up to spe |
| D300147 |
Printer stand |
March 7, 1989 |
|
| D276261 |
Front panel for a wick heater |
November 6, 1984 |
|
| D276260 |
Wick heater |
November 6, 1984 |
|
| D269522 |
Drive unit for flexshaft vibrators |
June 28, 1983 |
|
| D264374 |
Portable heater |
May 11, 1982 |
|
| D261233 |
Container for liquids or the like |
October 13, 1981 |
|
| D255599 |
Window heater |
June 24, 1980 |
|
| D254234 |
Container for liquids or the like |
February 19, 1980 |
|
| D247045 |
Portable heater |
January 24, 1978 |
|
| D246891 |
Plastic container for liquids or the like |
January 10, 1978 |
|
| D244204 |
Motor-transformer unit |
May 3, 1977 |
|
| 5125720 |
Mounting arrangement for cutter socket |
June 30, 1992 |
| A socket for holding a cutting bit is removably attached by one or more resilient pins to a base permanently secured to a rotor. The pins are inserted through partially aligned openings in the socket and base and are radially expandable to bias load bearing surfaces on the socket into fi |
| 4720207 |
Segmented rotor |
January 19, 1988 |
| A road working machine for cutting into a road surface includes a power driven, cutting tooth carrying rotor comprising a plurality of rotor segments removably attached to a shaft to vary rotor width. Each of the segments includes a plurality of subsegments attached to one another and |
| 4632630 |
Forklift attachment |
December 30, 1986 |
| A fork extension attachment for a boom-type forklift for use in loading and unloading a fragile cargo from commercial containers includes an extension portion pivotally connected to the outer end of the boom to allow pivotal movement of the extension in a vertical plane and a fork assemb |
| 4621871 |
Quickly replaceable cutter socket |
November 11, 1986 |
| A mounting for quickly removing and replacing cutter teeth on a rotary drum includes a cutter tooth socket mating with a socket housing defining a tapered channel having a base surface and a lateral surfaces inclined with respect to the longitudinal axis of the tapered channel and orient |
| 4570672 |
Hydraulic control valve with independently operable bypass valve |
February 18, 1986 |
| A hydraulic sectional control valve includes separate pump pressure and function control spools. The spools may be actuated independently and sequentially to provide raising, holding and power down functions for earthmoving and construction vehicles. Additional function control spools |
| 4561463 |
Sectional valve having dual pressure relief |
December 31, 1985 |
| A sectional valve having dual pressure relief provide high pressure relief for the hoist or lift function while auxiliary functions such as tilt, not requiring high pressure, are monitored by a low pressure relief valve. Spool position in one of the valve sections determined which functi |
| 4532914 |
Portable LP space heater |
August 6, 1985 |
| A portable LP gas heater includes a combustion chamber the discharge end of which is open and unobstructed and the inlet end of which is defined by a rear head plate having a central primary air inlet into which projects, to a limited degree, a cylindrical fuel nozzle. The projected extr |
| 4474166 |
Wick heaters |
October 2, 1984 |
| A wick heater comprises a housing the top and front panel of which are so constructed and interrelated with each other and the remainder of the housing to provide for their relative expansion and contraction in a manner to avoid warping, buckling or distortion or any undue stress on the |
| 4458763 |
Soil stabilizer machine with recycler screen |
July 10, 1984 |
| The present invention relates to a soil stabilizer machine with a recycler screen. The soil stabilizer machine includes a horizontal rotor having a plurality of teeth along a periphery thereof. In operation, the machine moves along the ground and the rotor rotates to dig soil material. T |
| 4443187 |
Portable heater with integrated control system |
April 17, 1984 |
| A heater including a generally cylindrical shell defining its housing arranged in a very closely spaced relation to the outer periphery of its combustion chamber assembly and its fan device as it bounds a plenum chamber therebetween. The combustion chamber assembly has its discharge |
| 4421435 |
Method and apparatus for applying a thin liquid film to a vibratory plate |
December 20, 1983 |
| The present invention relates to a method and apparatus for applying a thin film of a liquid to a vibratory plate arranged on an edge of a vibratory compactor. The apparatus for applying the thin film of liquid includes a container assembly for holding the liquid adjacent the plate. Liqu |
| 4384224 |
Drive unit for flexshaft vibrators |
May 17, 1983 |
| A drive motor for a flexible drive shaft of an internal vibrator or some other device potentially the source of an electrical shock features a cylindrical structure embodying a field assembly which slip fits in a cylindrical shell which embodies positioning means to which the field a |
| 4378031 |
Electrohydraulic servovalve |
March 29, 1983 |
| A two-stage miniature electrohydraulic servovalve including an electromagnetic positioner having a flexure tube mounted drive arm secured to and movable with an armature movable in accordance with a combined magnetic field resulting from both permanent magnets and an electrical signa |
| 4342523 |
High-low force amplitude device |
August 3, 1982 |
| A vibratory compacting roller includes a rotatable compacting roll, and a motor driven vibrator. The vibrator includes a shaft, a movable mass rotatable with the shaft and adjustable transversely thereof, and a position regulator for regulating the position of the mass to provide for |
| 4342335 |
Hydraulic valve detent mechanism |
August 3, 1982 |
| A hydraulic pilot valve having an improved detent mechanism. The pilot valve includes a pair of lever operated plunger members which operate sliding valve members to control the opening and closing of a pair of work ports. Biasing members urge the plunger members to an extended position |
| 4313417 |
Portable space heater |
February 2, 1982 |
| A portable heater comprising a housing composed of separate parts including a lower part having a bottom and side wall portions defining a trough, components of said heater including a combustion chamber assembly and a support, said support positioning in a sense transverse to said lower |
| 4295594 |
Laminated jet pipe receiver plug assembly method and structure |
October 20, 1981 |
| Laminated plate cylindrical receiver plug assembly structure having rectangular cross section passages therein which extend axially of the plug assembly through one end thereof on opposite sides of a very narrow divider plate and radially out of the plug assembly on opposite sides of |
| 4282502 |
Electromagnetic positioner |
August 4, 1981 |
| An electromagnetic positioner for positioning the drive arm of an electrohydraulic servo valve or the like, comprising a mounting plate, a flexure tube secured to the mounting plate, a drive arm secured to the flexure tube, a top plate secured in parallel spaced apart relation to the |
| 4261423 |
Field cultivator shank |
April 14, 1981 |
| An earth working implement such as a field cultivator shank for use on a tool bar of a field cultivator includes a mounting bracket having an upper end and a lower end. The mounting bracket is secured at the lower end of the mounting bracket to the tool bar with the upper end of the moun |
| 4218837 |
High lift hydraulic system for an excavator |
August 26, 1980 |
| The disclosure relates to an apparatus for increasing the lifting capacity of the boom of an excavator to lift heavy objects, while conjointly disabling the hydraulic circuit used for normal digging operations to avoid damaging the excavator. The apparatus includes a manually operated |
| 4214633 |
Soil stabilizer and tooth holder therefor |
July 29, 1980 |
| A soil stabilizer comprises a self-propelled vehicle, a rotor having soil-working teeth, and a motor for driving the rotor. The motor is reversible to drive the rotor in opposite directions. The rotor includes tooth holders, each having generally oppositely directed tapered sockets. |
| 4192103 |
Cutting reel grinder with automatic control |
March 11, 1980 |
| A cutting reel grinder is disclosed which includes an automatic control for operating the grinding device as well as an indexing device that advances cutter reel knives for sharpening by the grinding device. The control includes a pair of electrical actuators: one actuator driving the in |
| 4170308 |
Hydraulic function disconnect means |
October 9, 1979 |
| A hydraulic function disconnect means is interposed between an operator's control lever and a spring centered hydraulic control valve for a hydraulic motor actuator. The means is operable when the hydraulically actuated element approaches a limit position to prevent any operation of |
| 4165613 |
Control apparatus for a plurality of simultaneously actuatable fluid motors |
August 28, 1979 |
| A control apparatus is disclosed for permitting simultaneous actuation of a plurality of fluid motors whose combined flow capacity exceeds the available flow rate. The plurality of fluid motors are actuated by a corresponding plurality of open center, pressure-compensated, pneumatica |
| 4143757 |
Self-cleaning sprocket assembly |
March 13, 1979 |
| A sprocket assembly adapted for rotational cooperation with a flexible, toothed driving belt and used in a crop handling device such as a forage harvester or the like is constructed of a pair of parallel sidewall members or disks which are interconnected by a central hub rotatable about |
| 4132941 |
Syncro-matic circuit used with material spreaders |
January 2, 1979 |
| A vehicle with apparatus for discharging material such as salt on a roadway or the like at a rate that a control system automatically varies with vehicle speed includes means that ordinarily interrupts normal control to prevent discharge of material while vehicle speed is below preselect |
| 4132353 |
Window heaters |
January 2, 1979 |
| A thermostat controlled window furnace for heating a room features a construction wherein the air required for its operation is comprised on the one hand of outside air used solely for combustion purposes, to service a heat transfer component, and on the other hand of air drawn from |
| 4130940 |
Boom length sensing and indicating system with self-synchronization |
December 26, 1978 |
| A boom length sensing and indicating system for a crane of the type having an operator's cab, in which changes in the extended length of the boom are sensed and a signal representative of the sensed changes is generated. The changes are sensed and the representative signal generated by a |
| 4089642 |
Portable space heater |
May 16, 1978 |
| The space heater of the invention features an improved motor-transformer package which may be easily applied to and removed from the heater, as an integrated unit. The design and mount of this package makes it extremely easy to service and insures that in the placement and operation ther |
| 4086748 |
Rotary cutting system |
May 2, 1978 |
| A rotary cutting system for use with a row crop harvesting apparatus includes a pair of contra-rotating sickle assemblies operating in conjunction with a system of flexible, toothed crop-gathering belts. Each sickle assembly includes at least a pair of multi-toothed sickle blades arr |
| 4081238 |
Portable heater |
March 28, 1978 |
| A compact, relatively midget sized, portable heater a stable base for which is provided by its fuel tank per se. The tank features a plug fit filter tube formed to facilitate the connection of a fuel supply line. Preferred embodiments of the heater are characterized by plate formed air d |
| 4079232 |
Contact heater mechanisms for thermoforming machines |
March 14, 1978 |
| Contact heater station mechanism for use in a thermoforming machine for particularly forming thermoplastic synthetic plastic and superplastic metal alloy sheets into shapes, such machines having a sheet transfer station, a heating station, and a forming station with relatively movable |
| 4057222 |
Concrete vibrator |
November 8, 1977 |
| Immersion vibrator of the type employed for consolidating poured concrete and employing an unbalanced rotor, characterized by a gerotor type motor, operated by hydraulic pressure, for rotating the rotor. It is of particular utility as an accessory to certain paving machines having an |
| 4043402 |
Soil stabilizer machine with detachable hydraulic motor structure driving rotatably mounted cutt |
August 23, 1977 |
| A self-propelled soil stabilizer machine employs a heavy-duty single horizontal rotor for pulverizing and mixing soil it passes over. The rotor is driven by hydraulic motors which are mounted at the rotor ends and operated by a hydraulic pump (engine driven) which is hydraulically co |
| 4039085 |
Crane with a pivoted boom and a float valve therefor |
August 2, 1977 |
| A crane is disclosed having hydraulic means for boom elevation control which is provided with a load-holding check valve and a float valve interposed therebetween. The float valve is intentionally operable to a float position establishing fluid communication between opposed actuating |
| 4024710 |
Load sensing hydraulic circuit having power matching means |
May 24, 1977 |
| A load sensitive hydraulic circuit for material handling equipment is energized by a prime mover. The hydraulic circuit includes variable displacement pumps coupled to the prime mover and having pressure and flow compensating control means for varying the volumetric output. Each pump is |
| 4015832 |
Extruder screws |
April 5, 1977 |
| A plasticating extruder screw is provided with a wave section in which the depth of the material conveying channel varies cyclically over a plurality of cycles. The wave section as a whole provides good pumping performance for metering the extrudate at a uniform rate. The deep valley por |
| 4005964 |
Injection-mold clamping unit having alternately ejecting die assemblies |
February 1, 1977 |
| An injection mold includes a stationary platen carrying a pair of stationary die sections, a movable platen carrying a pair of movable die sections, and a pair of floating die sections disposed between the movable and stationary die sections. The respective floating and stationary die |
