Abstract: An IC component extraction hand tool, especially for PCCs in a socket, comprising a base member for engaging the socket, a handle on the base member, and a resilient wire mounted to the handle and passing through holes in the base member and having hook ends which upon actuation of the wire can be caused to engage the component during an extraction operation.

Abstract: A novel low profile IC test clip for removable attachment to a DIP IC having substantially fixed contacts for sliding engagement with the IC pins, locking means at the ends, which are uncoupled to the contacts, and a laterally extending multi-conductor cable internally connected to the contacts.

Abstract: A powered downdraft type combustion unit which substantially completely gasifies the fuel burned therein during the combustion process and produces a maximum amount of usable heat for utilization at a location remote from the combustion unit is provided. The present combustion unit includes a heavily insulated outer shroud enclosing insulated sequential combustion chambers to prevent heat loss from the combustion chambers. A primary combustion chamber is separated from a secondary combustion chamber by a plurality of refractory grates. Fuel is fed to the primary combustion chamber to be combusted therein, and the products of this stage of combustion then pass to the secondary combustion chamber where the combustion process is completed. The heat-containing combustion gases are directed from the secondary combustion chamber to a heat utilizing appliance through a conduit connected therebetween.

Abstract: A roller skate construction including an elongated cast plastic body member having a hollow extending substantially throughout the length thereof and including front and rear axle supporting portions having bores therein with the sides of the bores being diverging so as to act as limit stops for the central portions of the axles which are pivotally mounted by means of bolts extending therethrough and received in the front and rear axle supporting portions. Wear plates are positioned in the bores between the axles and the axle supporting portions to take the wear due to pivotal movement of the axles. A toe stop construction consisting of a substantially solid rectangular block with a slot therein to receive the front portion of a skate body in complementary mating relationship and a bolt nonrotatably extending through the toe stop and the skate body for mounting the toe stop, the configuration of the slot and the toe portion of the skate body being such so that there can be no pivotal movement of the toe stop.