>Does a charge of contempt stay on the record?
Yes. But, if there's no judgment of contempt, then the charge is generally inadmissible as evidence in a future proceeding.
>What affect does multiple charges of contempt have on any
>future custody proceedings?
Depends on the facts. You'll need to give me a fact pattern.
>
>When contempt charges are pending a “purge” what does that
>mean?
There are two types of contempt: civil and criminal. Civil contempt is a remedy of the court to legally coerce the contemnor into following an order. For example, if a person is ordered to answer a question asked under oath, and the person refuses, the court can toss the person in jail until he/she agrees to answer. The act of answering "purges" the contempt and releases the person from the custody of the court. In the biz, civil contempt is sometimes characterized as the act of imprisoning a person and simultaneously handing him/her "the keys to the cell."
Also, civil contempt requires proof by clear and convincing evidence, and entitles the defendant to none of the special constitutional rights provided to a criminal defendant (right to remain silent, right to appointed and effective counsel, right to reasonable bail, right to a Miranda warning, to an arraignment, fair trial, proof of guilt beyond all reasonable doubt, to be faced by accusers, to compel witnesses, etc.).
OTOH, criminal contempt is not intended to coerce cooperation from a defendant, but rather is intended to punish them for past bad behavior. A person sentenced to 10 days in jail for criminal contempt cannot say "I'm sorry" and be released. And, because the person doesn't have the keys to the jailhouse, the person is entitled to the entire pallete of constitutional protections provided by the Bill of Rights, EXCEPT for the right to a trial by jury, because that right only attaches where a person will have his personal liberty deprived for more than 6 months or where the person will be fined by the court in an amount greater than $50,000.
Usually, states have fairly strict constraints on what a judge can rule as either a remedy or punishment for contempt, So, it's usually a practical impossibility that a defendant would ever have a right to a jury trial.
>When person does not perform what is required to “purge” the
>contempt; what happens?
Either the judge issues a bench warrant to take the contemnor into custody until he/she agrees to follow the court's orders, or, you move for a charge of criminal contempt, and the judge will hold mini-criminal trial, after which if the defendant is found guilty beyond reasonable doubt, he/she will be sentenced and/or fined by the court as punishment.
As a practical matter, community service (trash pickup on the roadside or graffiti removal) is what is ordered, and sometimes a fine of up to $1,000.