摘要:
A head suspension includes a headband portion having a length and two transition arms. Each transition arm is coupled to the headband portion and extends away from the headband portion length at an angle greater than zero degrees. Each transition arm has a distal end and a pivot at the distal end. The pivot characterized by a pivot point and a rear support portion is pivotally connected to each pivot.
摘要:
Protective headgear and an optical filter cartridge that is removably mountable thereto, and methods of removably inserting such a cartridge and removing such a cartridge.
摘要:
A head suspension includes a headband portion having a length and two transition arms. Each transition arm is coupled to the headband portion and extends away from the headband portion length at an angle greater than zero degrees. Each transition arm has a distal end and a pivot at the distal end. The pivot characterized by a pivot point and a rear support portion is pivotally connected to each pivot.
摘要:
A head suspension includes a headband portion having a length and two transition arms. Each transition arm is coupled to the headband portion and extends away from the headband portion length at an angle greater than zero degrees. Each transition arm has a distal end and a pivot at the distal end. The pivot characterized by a pivot point and a rear support portion is pivotally connected to each pivot.
摘要:
Protective headgear and an optical filter cartridge that is removably mountable thereto, and methods of removably inserting such a cartridge and removing such a cartridge.