Flip top caps

All-purpose cleaners, as powders, were dispensed from boxes or bags. This could be a messy operation, and spills are difficult to clean up. Liquid all-purpose cleaners are dispensed from bottles, usually equipped with screw off or flip-top caps. Therefore, these were not only less messy to dispense, but they were easier to close tightly to eliminate spills. The caps could also be used to measure the product... 

Solutions, suspensions, emulsions Bottle, possibly with roll-on or dabbing applicator or another dispensing cap (for example flip top cap with spray orifice)... 

Liquid dispensing cap (for example flip top caps with spray orifice)... 

FIGURE 2.55 Flip top cap, produced in large quantities (millions)... 

The resulting breadboard waveforms are shown in Fig. 7.2. The top waveform is the 100 kHz clock, the middle waveform is the Q output of the first JK flip-flop stage (divide by 2), and the bottom waveform is the Q output of the second JK flip-flop stage (divide by 4). This circuit was simulated using IsSpice, PSpice, and Micro-Cap. The results of each of these simulators are shown in Figs. 7.3, 7.4, and 7.5, respectively. 

The most informative study to date was published by Brannan and DiUe in 1990 (17). The study involved the use of an unpreserved shampoo and a skin lotion product that were verified using a standard PET closure. The two products were packaged in identical bottles. Their data proved that closures and dispensers vary in their ability to resist contamination. The pump dispenser was the most contamination-resistant delivery system evaluated for lotions. The flip cap dispenser appeared to be the most protective for shampoos. Other studies showed that pump top closures are more protective in preventing... 

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