Pneumatic shutoff and time-delay valve operates at controlled rate

Shutoff and time delay valve, which incorporates a metering spool that moves at constant velocity under pneumatic pressure and spring compression, increases fluid-flow area at a uniform rate. Diaphragm areas, control cavity volume, and bleed-orifice size may be varied to give any desired combination of time delay and spool travel time

The Landscape of Community Philanthropy: Navigating Relationships between local United Ways and Community Foundations

Community philanthropic organizations, those organizations like United Ways and community foundations, have traditionally played important roles by raising and distribute resources within a specific geographic place, increasingly play important roles in planning for and funding local public service delivery. Over the last two decades, the field of community philanthropy has experienced many shifts. Changing donor expectations, increased competition from other nonprofits and commercial funds, economic restructuring and demographic shifts have all pushed local United Ways and community foundations to rethink their roles and their business models. These changes also affect relationships between organizations. This report summarizes the roles that United Ways and community foundations play in their local communities, their perceptions of the changes going on in the world around them and their perceptions of their relationships with each other