摘要:
A quick release mechanism and headpiece for use with a respirator. The quick release mechanism uses a cam latch pivotally attached to a yoke to control the tension in an upper tension strap. In the latched position the upper tension strap traverses the yoke to support and seal the respirator mask against the face of the wearer. In the unlatched position the upper tension straps loosely support the mask below the chin of the wearer in a parked position. In one embodiment, a guide is provided on the yoke to ensure that the mask may be consistently donned and doffed with minimal effort (e.g., potential one-handed donning and doffing). An opening may also be provided in the face mask and optionally in the yoke, and a filter may be disposed within the opening to provide the desired filtration of inhaled gases.
摘要:
A quick release mechanism and headpiece for use with a respirator. The quick release mechanism uses a cam latch pivotably attached to a yoke to control the tension in an upper tension strap. In the latched position the upper tension strap traverses the yoke and, together with a pair of lower tension straps and neck catch, support and seal the respirator mask against the face of the wearer. In the unlatched position the upper tension straps loosely support the mask below the chin of the wearer in a parked position. The upper strap is attached to a circular shaped headpiece having a crown piece fitting to the top of the head of the wearer. The lower straps are attached to a rounded neck catch secured behind the neck of the wearer. The upper and lower straps preferably and advantageously comprise a material or materials having a low maximum elongation to ensure a snug and comfortable mask fit. Filter or sorbent cartridges and caps are optimized to provide easy replacement of filter or sorbent elements and maximal exposure of filter or sorbent material surface area.
摘要:
A quick release mechanism and headpiece for use with a respirator. The quick release mechanism uses an over center latch pivotly attached to a yoke to control the tension in a pair of upper tension cords. In the latched position the upper tension cords traverse the yoke and together with a pair of lower tension cords support and seal the respirator mask against the face of the wearer. In the unlatched position the upper tension cords loosely support the mask below the chin of the wearer in a parked position. The upper and lower tension cords are attached to a circular shaped headpiece having a crown piece fitting to the top of the head of the wearer and a base portion fitting to the back of the head of the wearer. The headpiece is advantageously comprised of multiple layers wherein the outer layer is comprised of a rigid material and the inner layer is comprised of a compliant material. The rigid layer provides necessary structure to headpiece and the inner layer provides compliance and comfort to the head of the wearer.
摘要:
The equipment support may include a first support, an actuator arm on the first support, and a second support supporting a piece of equipment. A third support may be provided between the first support and the second support. The first support may be pivotally attached to a fixed point, which may be distant from the use position of the equipment. The second and third support may be rotatably attached to the first support and may be configured for supporting the equipment at a distance from the fixed point. When the equipment support supports a piece of equipment adjacent a bridge, and is pivotably attached to the ground, the user may stand on the ground, and move, pivot, and rotate the supports for moving the equipment from a distant, use position to an adjacent, non-use position above the ground for servicing.
摘要:
Apparatus for dispensing a flowable substance, e.g., a fluid, has a housing with an indicating chamber, an outlet and two fluid paths from a container, one of the fluid paths to the indicating chamber and the other fluid path to the outlet. The indicating chamber may have indicia identifying, in real time, an amount of fluid that has flowed through the outlet. A shroud-cap may close the outlet and obscure the indicating chamber. Each fluid path includes a respective metered inlet. All the metered inlets are substantially identical in size and shape. Some disclosed shapes reduce surface tension for more accurate readings. A snorkel tube may extend into a container to supply makeup air into the container as fluid is dispensed. An indicating spout for flexible containers is vented to only the exterior of the flexible container.
摘要:
The present invention relates to dispensers for disposable cutlery. The invention also relates to pluralities of disposable cutlery that can be used in the cutlery dispenser of the present invention, as well as other cutlery dispensers that do not use a cartridge therein. The present invention also relates to disposable cutlery that has been adapted to make it better suited to stacking such as for use in cutlery dispensers that do not include a cartridge.
摘要:
A napkin dispenser includes a housing 12 configured to receive a stack 35 of napkins disposed such that panels of the napkins are facing in a vertical direction and edges of the napkins are horizontally oriented along a front wall. The housing has a vertical slot 28 in the front wall thereof, the horizontal span 30 of the slot being sufficient to allow access to the napkins A dispensing control frame 32 is mounted in the slot for upward and downward motion along the front wall of the housing. The dispensing control frame has at least one and preferably a pair of support members 34, 36 configured to engage the napkin stack and limit downward motion of the control frame. The control frame also has a faceplate 38 disposed between the support members and extending across the vertical slot of the front wall defining an access height relative to the top of the stack in order to promote dispensing of a limited number of napkins.