Abstract: A clamp ring includes an elongated band formed into the shape of an open generally circular ring with opposing first and second ends. A cam lever is pivotally connected to a first end of the band and a link has one end pivotally connected to the cam lever. The opposite end of the link is connected to the second end of the band such that pivotal movement of the cam lever will selectively draw the ends of the band towards one another to secure the ring in position on a container. A removable handle is provided to engage and pivot the cam lever 20 and includes a polygonal pin for engagement with a corresponding socket on the cam lever.

Abstract: A fitting (10) for dispensing fluids, such as hot melt adhesives, includes a swivel member (12) and a housing (14). The swivel member (12) has a ball (16) at one end which is received within a socket (22) of the housing (14). The swivel member (12) has a first bore (24) which intersects and cooperates with at least one secondary bore (28). The secondary bore (28) is generally perpendicular to the first bore (24) and to a conduit (54) in the housing (14). Fluid enters the first bore (24), passes into the secondary bore (28), passes into a reservoir (40) and then finally into the conduit (54) and out of the housing (14). The reservoir and the orientation of secondary bores 28 reduces or eliminates axial loading on swivel member (12) due to the internal fluid pressure.

Abstract: A power controller for placement between a source of electricity and a user of electricity such as heaters for heating thermoplastic material. The controller comprises a normally closed switch allowing electrical communication between the source and user. An electrical control circuit including a coil which is connected to the normally closed switch.The control circuit further includes a switch assembly operable between an on and off condition. The switch assembly prevents or allows the energization of the coil when in the on or off condition, respectively. A first timing assembly causes the switch assembly to be in the on condition for a first selected duration after energization of the control circuit. A second timing assembly causes the switch assembly to be intermittently placed in an on condition after energization of the control circuit.

Abstract: A low level indicator for a heated fluid in a container such as for use in indicating the glue level in a tank in a hot melt glue application. A thermistor probe is positioned at the mid-level of the container and senses the level of the heater fluid based upon sensing fluid contact with the probe. A light or alarm is activated when the heated fluid level falls below the probe, permitting of cooling the probe. The light or alarm is only activated when the probe becomes cooler subsequent to a time at which the probe was immersed in the fluid and properly heated. This conditional activation prevents continued low level alarm indications when the container is refilled with material at a temperature lower than that of the heated fluid.