Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 4648976 | Integral water demineralizer system and method A water demineralizer system and method is provided in which at least three beds of resin particles are connected in series flow arrangement preferably within a single vessel for substantially removing metal ions such as calcium and magnesium from water f... | 03/10/1987 |
| 4519817 | Precipitator rapper A rapper for striking a target in a precipitator includes a hammer having a hub pivotally attached to a frame. The rapper also has a drive sprocket rotatably mounted in the frame. The sprocket has a driving plurality of spaced teeth distributed on the spr... | 05/28/1985 |
| 4290003 | High voltage control of an electrostatic precipitator system There is provided a precipitator system including a voltage controller which produces from an alternating power source a variable output. This variable output drives a high voltage converter which applies a high voltage to a precipitator. This variable ou... | 09/15/1981 |
| 4191644 | Regeneration of mixed resin bed used for condensate polishing A process is disclosed in which a spent mixed anion/cation exchange resin bed is hydraulically separated into cation, anion and interface resin cuts. The interface resin cut is further classified by various physical separation techniques. Cation and anion... | 03/04/1980 |
| 4155723 | Matrix wiring system for use in electrostatic precipitators A plurality of rappers which are periodically energized to clean the electrodes of electrostatic precipitators are connected by a wiring system which requires less wiring than conventional wiring systems. The rappers are arranged so that several have lead... | 05/22/1979 |
| 4120672 | Rapper assembly for electrostatic precipitators An electrode rapper assembly for electrostatic precipitators which increases the life of switches used to energize the rapper and will not be damaged if improperly connected. The rapper assembly has a solenoid and two diode rectifiers, one being connected... | 10/17/1978 |
| 4086646 | System for the control of rappers in an electrostatic precipitator A control system for energizing each of a number of rappers used to periodically rap the electrodes of an electrostatic precipitator to clean the electrodes. The control system energizes each rapper sequentially so that the coil of each rapper is periodic... | 04/25/1978 |
