An enclosure for controlling the ambient temperature of a battery by utilizing a quantity of water for heat transfer and thermal mass is disclosed. A housing has a thermally insulated interior defining a cavity which contains the battery. A water container within the cavity is in thermal contact with the battery. A flat radiator with a hollow interior is located proximate the housing above the level of the water container, and has a nearly horizontal orientation. Warm supply and cold supply cond...

In a scroll compression apparatus having an orbiting scroll, a frame with a pressure regulation chamber adjacent the orbiting scroll wherein the frame includes a spring biased annular seal and a pressure responsive device in a discharge aperture through the frame for maintaining constant pressure in the pressure regulation chamber. Preferably, the frame includes an annular groove of rectangular cross-section accommodating a relatively smaller annular seal also of rectangular cross-section. An an...

A DC or AC power conversion and regulation system in which DC or rectified AC is applied to a voltage controlled oscillator (VCO). The output of the VCO is applied to a frequency sensitive filter whose frequency response is such that for a fixed input voltage the output voltage is a function of the input frequency. The output of the filter is applied to a transformer whose output may be rectified to provide a regulated DC output. A portion of the rectified DC is sampled and compared with a refer...

Compounds of the formula ##STR1## wherein R.sup.1 is trichloromethyl or trifluoromethyl R.sup.2 is hydrogen or methyl; and n is 0 or 1, are useful in regulating the growth of plants when applied to the plants, to the locus where plants are growing, or to plant seeds.

A circuit for providing a signal proportional to the RMS value of a periodic input waveform having either a variable or fixed frequency. The input waveform is applied to a rectifier. The output from the rectifier is squared and integrated at least once each period of the periodic waveform. The integrated voltage is sampled and a voltage equal to the sampled voltage is applied to a divider circuit. The output of the divider circuit is applied to a square root circuit until the integrated voltage ...

In a method of regulating the temperature of a system in which exothermic type reactions take place at temperatures of several hundreds of degrees and which are followed by stoppage periods, the system (1) is put in contact with a first substance (4) whose boiling temperature (T2) is close to the required temperature (T) of the system, and heat which results from the exothermic reactions is used to boil the first substance (4). Thereafter heat which comes from the condensation of the vapor evolv...

A power converter utilizes an inverter operating at a frequency near 30 kHz to produce an RF voltage which is divided by a reactive voltage divider, one portion of the divider including a saturable reactor having a control winding which is driven by a negative feedback current from a level sensing circuit connected to the converter output. DC voltage is provided by a bridge rectifier and filter connected across the saturable reactor. The circuit is especially useful for supplying electrical powe...

A circuit is disclosed which extends the useful life of a battery by regulating the power supplied from the battery to a load, such as a highway warning lamp, as the battery voltage decreases from age and use. The circuit supplies current from the battery to the load over periods of time which are automatically varied in length according to the battery terminal voltage, thereby maintaining the average power consumption at a fixed level throughout the useful life of the battery.

Bicyclic quaternary ammonium salts are useful in a method of plant growth regulation.

A composition for growth regulation of plants or for defoliating plants comprises in combination (a) at least one compound of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 3 carbon atoms and R.sub.2 is hydrogen or alkyl of 1 to 4 carbon atoms and R.sub.3 is alkyl of 1 to 4 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, halogenophenyl, methylphenyl, methoxyphenyl is nitrophenyl and X is oxygen or sulfur and (b) at least one other plant growth regulating or defoliatin...