A hydraulic door that crushed an endangered young gorilla to death at the San Francisco Zoo on Friday night was custom-made with a fully functional manual shut-off switch, a zoo spokesman said Sunday.

Hydraulic doors introduced in city buses with much fanfare to prevent passengers from perilously dangling on the footboard serve little purpose. But it has failed to discipline bus drivers and ...

Structural design of Schweiss Doors hydraulic doors now includes the application of hydraulic wind pins. Wind pins lock the door to the building structure similar to the bolt in a standard door lock ...

SAN FRANCISCO (KCBS) — Officials at the San Francisco Zoo said they retested the hydraulic door that crushed a young gorilla to death on Friday and found that its manual instant-stop switch was ...

Schweiss hydraulic doors can now be opened or closed during an unexpected power outage with a DC battery-motorized back-up control system. Doors are also engineered with a no-extra-cost drill-driven ...

German investigators have determined that a complex interaction of hydraulic, mechanical and icing problems resulted in a DHL ...

A heartbreaking incident at the Calgary Zoo in Alberta, Canada, resulted in the death of a 2-year-old western lowland gorilla, Eyare, after a staff member accidentally caused a fatal injury. According ...