| US 7,578,475 B2 | ||
| Pressure responsive blowout latch | ||
| John D. Pratt, Laguna Niguel, Calif. (US); Timothy S. Rozema, Ladera Ranch, Calif. (US); Frank T. Jackson, Sr., Lake Elsinore, Calif. (US); William Bourne, Redondo Beach, Calif. (US); and Manuel Andres Hernandez, Temecula, Calif. (US) | ||
| Assigned to Hartwell Corporation, Placentia, Calif. (US) | ||
| Filed on Sep. 13, 2004, as Appl. No. 10/939,659. | ||
| Application 10/939659 is a continuation of application No. 10/138283, filed on May 03, 2002, granted, now 6,866,226. | ||
| Claims priority of provisional application 60/326942, filed on Oct. 04, 2001. | ||
| Prior Publication US 2005/0116100 A1, Jun. 02, 2005 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. E05B 65/10 (2006.01) | ||
| U.S. Cl. 244—129.4 [244/129.5; 292/21; 292/92; 292/93; 292/254; 49/503] | 68 Claims |
| 1. A latching device for controllably retaining a panel relative to a frame, the latching device comprising:
a latch body attachable to at least one of a panel and a frame;
a controllable bolt displaceably carried on the latch body;
a portion of the bolt abutting a portion of the other of a panel and a frame for preventing displacement of a panel from a
frame;
at least one pressure responsive device for detecting a pressure differential on at least one side of a panel, the pressure
responsive device communicating with the controllable bolt for controllably disengaging the bolt to allow movement of the
panel relative to the frame upon the at least one pressure responsive device detecting a pressure differential on at least
one side of a panel.
|