Solar heat pump

I'm looking for people who would be interested in a solar powered heat pump for their home. This would work similar to a conventional heat pump, heating the house in winter and cooling the house in summer, except that it would be powered from solar collectors (not photovoltaics) and consume no (or almost no) electricity.  The patents on this technology expired a long time ago, but for a variety of reasons, units are not being commercially manufactured.
I'm not interested in trying to set up a manufacturing concern to commercially market mass produced units (yet). This would be more like an architectural feature built onto the house (or added later) that would significantly cut winter heating and summer cooling needs.
If you enjoy tinkering with your home's HVAC system and would like to try to revive this technology, please leave a reply to this post. If you are an HVAC contractor and would like to add a new technology to your list of services, I would also like to hear from you.