A bi-stable hinge unit of elastic material

Access door hinge attachment

Access panel assembly for aircraft fuel tank

Access panel with non-destructive release

Accessory container structure

Adhesive injection apparatus

Adjustable door arrangement for a vacuum chamber

Adjustable length storage tank sumps

Agitator cover for cans of colors on paint shaker machines

Aircraft servicing pit lid with lift control

Airtight container

Animal resistant trash container and method

Anti-scavenging device for use with receptacles

Aperture plug

Apparatus for closing the door of a pressure chamber

Apparatus for locking a pressure vessel

Apparatus for locking waste containers

Apparatus for sealing friction resealable containers during air

Apparatus for storing pressurized materials

Article including an integrally molded ball and socket type hing