摘要:
A hose reel (10) is supported by a mounting bracket (12) which can be attached on a vertical or horizontal surface and allow for 180 degrees of motion to allow the hose reel (10) to automatically swivel in the direction the hose (14) is being pulled. The bracket mechanism (16) consists of integral mounting bosses (18) on the hose reel enclosures (20), a mounting bracket (12), a tube (22) and a constraint device (24) on the tube (22). The mounting bosses (18) on the hose reel enclosures (20) are designed to orient and constrain the mounting tube (22) to allow for the tube to be installed from either end of the hose reel. The constraining device (24) on the tube (22) locks into an integral opening (26) in the mounting bosses (18) to prevent tube (22) displacement in either direction.
摘要:
A hand-held flow metering device for dispensing a pressurized fluid comprises a valve, a flow meter, a trigger lever, a trigger release mechanism and meter electronics. The valve is connected to the pressurized fluid to regulate flow of the pressurized fluid through the device. The flow meter is disposed within the flow of pressurized fluid to measure volumetric flow of the pressurized fluid. The trigger lever is configured to be manually displaced to mechanically open the valve. The trigger release mechanism is connected to the trigger lever and is selectively actuated to mechanically prevent the trigger lever from opening the valve when the trigger lever is displaced. The meter electronics is connected to the flow meter and the trigger release mechanism to actuate the trigger release mechanism based on output of the flow meter.
摘要:
An enclosed hose reel 10 consists of a spool and two enclosure halves 14 comprising the frame 16. The power spring 18 is contained in the spool 12. Tension on the power spring 18 is transmitted to the frame 16 via a shaft 20 with a spring 30 loaded ratchet 22. The ratchet mechanism 24 engages the frame 16 via protrusions 26 that fit into cutouts 28 within the enclosure 14. The protrusions and cutouts 28 are designed so that a clockwise rotation is allowed to increase the tension of the power spring 18.
摘要:
A reciprocating pump comprises a cylinder, an inlet check valve, a piston, an outlet check valve and a purge circuit. The cylinder has a first end and a second end. The inlet check valve is disposed proximate a first end of the cylinder. The piston is disposed within the cylinder between the inlet check valve and the second end. The outlet check valve is disposed within the piston. The purge circuit extends across the inlet check valve and the outlet check valve to fluidly couple the first end and the second end.
摘要:
A reciprocating pump comprises a cylinder, an inlet check valve, a piston, an outlet check valve and a purge circuit. The cylinder has a first end and a second end. The inlet check valve is disposed proximate a first end of the cylinder. The piston is disposed within the cylinder between the inlet check valve and the second end. The outlet check valve is disposed within the piston. The purge circuit extends across the inlet check valve and the outlet check valve to fluidly couple the first end and the second end.
摘要:
An end cap assembly for a reciprocating air motor comprises a pilot valve and an end cap body. The pilot has a valve stem. The end cap body comprises a central bore for receiving an air motor rod, a valve bore in which the pilot valve is disposed such that the valve stem extends through the end cap body, and an air port extending through the end cap body. The air port has a contour to direct air toward the valve stem.
摘要:
An oval gear set for use in a flow meter comprises first and second gears that are identical to each other and that are configured to engage at a fixed center-to-center distance such that the first and second gears mesh at all angular positions. Each gear of the oval gear set comprises a hub and a plurality of gear teeth. The hub comprises an oval body having a major axis and a minor axis extending through a center of the hub, and a root profile wall circumscribing the major and minor axes. The plurality of gear teeth extend from the root profile wall. Each of the gear teeth has a pair of contact surfaces with circular involute curve profiles.
摘要:
A hose reel 10 is supported by a mounting bracket 12 which can be attached on a vertical or horizontal surface and allow for 180 degrees of motion to allow the hose reel 10 to automatically swivel in the direction the hose 14 is being pulled. The bracket mechanism 16 consists of integral mounting bosses 18 on the hose reel enclosures 20, a mounting bracket 12, a tube 22 and a constraint device 24 on the tube 22. The mounting bosses 18 on the hose reel enclosures 20 are designed to orient and constrain the mounting tube 22 to allow for the tube to be installed from either end of the hose reel. The constraining device 24 on the tube 22 locks into an integral opening 26 in the mounting bosses 18 to prevent tube 22 displacement in either direction.