Michael C Conner

US Patent:

56874529, Nov 18, 1997

Filed:

May 2, 1995

Appl. No.:

8/432846

Inventors:

Tomio Hamatani - Seattle WA
Sun Gil Kim - Redmond WA
Donald K. Franklin - Renton WA
Michael P. Conner - Danville VT

Assignee:

The Boeing Company - Seattle WA

International Classification:

E05F 502

US Classification:

16 82

Abstract:

A snubber is disclosed for use on an airplane translating door hinge arm (13) comprising a hydraulic device (41) and a flow regulation system (40). The hinge arm (13) includes sprockets (25, 27) placed at the ends (15, 17) of the hinge arm (13). Roller chain pieces (31) rotate partially about the sprockets (25, 27). A pneumatic actuator (33) having a through-rod (37) and housing (35) is located on one side of the hinge arm (13). The actuator housing (35) is supported by a support member (23) integral with the hinge arm (13). The ends of the actuator through-rod (43) are each coupled to first ends of each of the roller chain pieces (31). The hydraulic device (41) comprising a housing (47), a through-rod (43), a piston 45, a first compartment (49), a second compartment (51), and hydraulic fluid, is also supported by the support member (23). The ends of the hydraulic device through-rod (43) are each coupled to second ends of each of the roller chain pieces (31). The hydraulic device (41) is located on the side of the hinge arm (13) opposite the side having the actuator (33).

US Patent:

53799712, Jan 10, 1995

Filed:

Dec 22, 1993

Appl. No.:

8/172606

Inventors:

Sun G. Kim - Redmond WA
Donald K. Franklin - Tulsa OK
Michael P. Conner - Danville VT

Assignee:

The Boeing Company - Seattle WA

International Classification:

B64C 114

US Classification:

2441295

Abstract:

A hinge arm (16) has opposite ends (18, 20) pivotably connected to an aircraft door (2) and a door frame (8). First and second sprockets (22, 26) are fixed to the door (2) and frame (8) adjacent to the ends (18, 20). A programming chain (30) extends around the sprockets (22, 26) and the arm (16). A linear motor (36) is mounted on the arm (16) in-line with the chain (30). When pressurized gas is supplied to the motor (36), it moves the chain (30) to open the door (2) and maintain it parallel to its closed position as it moves toward and into its fully open position. The door (2) may be opened manually without moving the motor piston (44) because the motor rod (52) slides freely through an axial opening (46) in the piston (44).