We recently got into a design discussion with our Web Graphics Designer. We wanted to alter one of our logos to incorporate some text in order to distinguish the main logo from a subset of it, but still show the association. Specifically, a main health insurance plan from one of it's specific medicare offerings.
Creating another new logo is probably not an option for now as adding text to the existing one would be a much faster solution. Also, it seemed best for association to place the text near the logo to the right of it, although that is an assumption on my part.
She wanted to use a vertical bar for the separation and create a second logo instead. Regardless, does a vertical bar usually imply the idea of "And" or would incorporating text with a logo be the proper way to distinguish a subset?
I did find one example, here in St. Louis there is this type of format between a Health Insurance Company and an associated university displayed on the schools letterhead, divided by a vertical bar:
BJC Institute of Health | Washington University School of Medicine
Aftermath: The corporate designer got involved and had the final say. She opted to use the original logo with a bar and then text to the right of it.