Abstract: A paint sprayer includes an end bell, a motor connected to the end bell, a pump drive connected to the end bell, a pair of protrusions attached to an extending from the end bell such that each protrusion is cantilevered from the end bell, and a pump assembly comprising a pair of mounting holes and containing a piston. The pair of mounting holes is adapted to receive and slide onto the pair of protrusions to mount the pump assembly on the end bell as well as slide off of the pair of protrusions to remove the pump assembly from the end bell. The pump drive is configured to covert rotational motion output by the motor to reciprocal motion. The pump assembly is configured to pump paint when reciprocated by the pump drive while mounted on the end bell.

Abstract: A head form for testing a variety of respirators. The head form can prevent false leak failures by having a mask registration member upon which the mask under test is mounted, the mask registration member being self lubricating. In one embodiment, the registration member is an inflatable bladder. The bladder can be configured to limit lift away of the inflatable bladder from the recess, thereby mitigating leaks in the head form assembly. The bladder may be configured to limit roll away of portions of the bladder that register against the head form, thereby reducing or eliminating leaks between the inflatable bladder and the mask under test.

Abstract: A test accessory for testing a variety respirators. The accessory is designed to compliment existing equipment to provide a robust assessment of respirator performance. The accessory may include a head form having an inflatable bladder capable of fitting a variety of sizes of respirator masks. In some embodiments, the inflatable bladder does not rely on adhesives to effect a seal, thereby eliminating manufacturing and quality assurance steps. The test accessory may also include a detachable instrumentation module that may be removed from the accessory, enabling calibration and maintenance at a remote facility without need for transporting the entire unit. The module may also house a memory device that may be upgraded with calibration data and firmware during the calibration process.

Abstract: A test accessory for testing a variety respirators. The accessory is designed to compliment existing equipment to provide a robust assessment of respirator performance. The accessory may include a head form having an inflatable bladder capable of fitting a variety of sizes of respirator masks. In some embodiments, the inflatable bladder does not rely on adhesives to effect a seal, thereby eliminating manufacturing and quality assurance steps. The test accessory may also include a detachable instrumentation module that may be removed from the accessory, enabling calibration and maintenance at a remote facility without need for transporting the entire unit. The module may also house a memory device that may be upgraded with calibration data and firmware during the calibration process.

Abstract: A test accessory for testing a variety respirators. The accessory is designed to compliment existing equipment to provide a robust assessment of respirator performance. The accessory may include a head form having an inflatable bladder capable of fitting a variety of sizes of respirator masks. In some embodiments, the inflatable bladder does not rely on adhesives to effect a seal, thereby eliminating manufacturing and quality assurance steps. The test accessory may also include a detachable instrumentation module that may be removed from the accessory, enabling calibration and maintenance at a remote facility without need for transporting the entire unit. The module may also house a memory device that may be upgraded with calibration data and firmware during the calibration process.