Abstract: Disclosed is an environmental test apparatus having a thermal chamber for stress testing electronic products. The apparatus has a carrier for supporting the products in the chamber and equipment for monitoring product characteristics during stress testing. The improved apparatus has an auxiliary chamber in which ambient temperature and humidity conditions prevail. A flexible partition is interposed between the thermal and auxiliary chambers, the monitoring equipment is in the auxiliary chamber and the carrier having products under test mounted thereon is in the thermal chamber. A conveying mechanism is in the auxiliary chamber and the support platform is in driven engagement with such mechanism, thereby causing movement of the platform along the auxiliary chamber.

Abstract: The disclosure involves a transfer switch having a stationary frame and a front terminal matrix for connection to circuit boards undergoing test. There are two stationary connectors mounted on the switch frame. A platform is supported by the frame for reciprocating movement between first and second positions. Such platform has two movable connectors thereon and when the platform is in the first position, one of the movable connectors engages or “plug-connects” to one of the stationary connectors. When the platform is in the second position, the other movable connector plug-connects to the other stationary connector. The stationary connectors are electrically coupled to respective test devices, e.g., a load board and a signal bus. Thus, the boards under test can be connected to one or the other of the test devices by shifting the position of the platform. A new method is also disclosed.

Abstract: Disclosed is an environmental test apparatus having a thermal chamber for stress testing electronic products. The apparatus has a carrier for supporting the products in the chamber and equipment for monitoring product characteristics during stress testing. The improved apparatus has an auxiliary chamber in which ambient temperature and humidity conditions prevail. A flexible partition is interposed between the thermal and auxiliary chambers, the monitoring equipment is in the auxiliary chamber and the carrier having products under test mounted thereon is in the thermal chamber. A conveying mechanism is in the auxiliary chamber and the support platform is in driven engagement with such mechanism, thereby causing movement of the platform along the auxiliary chamber.

Abstract: The disclosure involves a transfer switch having a stationary frame and a front terminal matrix for connection to circuit boards undergoing test. There are two stationary connectors mounted on the switch frame. A platform is supported by the frame for reciprocating movement between first and second positions. Such platform has two movable connectors thereon and when the platform is in the first position, one of the movable connectors engages or "plug-connects" to one of the stationary connectors. When the platform is in the second position, the other movable connector plug connects to the other stationary connector. The stationary connectors are electrically coupled to respective test devices, e.g., a load board and a signal bus. Thus, the boards under test can be connected to one or the other of the test devices by shifting the position of the platform. A new method is also disclosed.

Abstract: An environmental test apparatus has a thermal chamber for stress testing electronic products and a wall separating the thermal chamber from ambient air around the apparatus. In the improvement, the wall comprises a pair of barrier walls having a flexible partition interposed between them. The barrier walls and the flexible partition substantially isolate the ambient air from the thermal chamber. The apparatus also includes a platform in the ambient air and a feedthrough card extending from the platform through the flexible partition into the thermal chamber.In one, more specific embodiment, the barrier walls are below the thermal chamber and the platform is below the barrier walls. In other embodiments, the barrier walls are lateral to the thermal chamber and the apparatus includes one or two racks, also lateral to such chamber. One or respective platforms are supported on the rack(s).

Abstract: The disclosure involves a transfer switch having a stationary frame and a front terminal matrix for connection to circuit boards undergoing test. There are two stationary connectors mounted on the switch frame. A platform is supported by the frame for reciprocating movement between first and second positions. Such platform has two movable connectors thereon and when the platform is in the first position, one of the movable connectors engages or "plug-connects" to one of the stationary connectors. When the platform is in the second position, the other movable connector plug-connects to the other stationary connector. The stationary connectors are electrically coupled to respective test devices, e.g., a load board and a signal bus. Thus, the boards under test can be connected to one or the other of the test devices by shifting the position of the platform. A new method is also disclosed.

Abstract: An adapter for injector razors comprising a substantially rigid one-piece tool insertable in the head of an injector-type razor and operable to open the head of the razor such that a used blade therein may be released and a new blade manually inserted.

Abstract: A razor handle for a razor blade assembly adapted to be movably mounted on the handle and having cam means thereon for receiving a biasing force, the razor handle having movable arms with journal means providing an axis about which the razor blade assembly may be pivoted, and cam follower means adapted to engage the cam means on the razor blade assembly for exerting a bias force thereon.

Abstract: A razor blade assembly includes a razor blade shaving unit comprising a substantially rigid member to which a razor blade is secured in a permanent manner with the rigid member having a forward edge providing a guard surface spaced from a cutting edge of the razor blade. The razor blade assembly further includes a connector member attached to the shaving unit in such a manner that the shaving unit is movable relative to the connector member. The connector member is provided with a plurality of surfaces forming channel means longitudinally thereof for receiving supporting surfaces of a holder.

Abstract: A disposable blade unit comprises two sets of cutting edges and a thin, transversely flexible web connecting the two sets of cutting edges. Each set of cutting edges includes a leading cutting edge and a following cutting edge, the cutting edges being permanently secured together in fixed geometrical relation. Each set of cutting edges also includes a support surface adapted to be received on the platform of a safety razor frame. The leading edge of each set is disposed below the plane of the support surface and the following edge of each set is disposed above the plane of that support surface.

Abstract: A shaving implement includes a grip portion, a transversely extending support portion at one end of the grip portion, a connection between the grip portion and the support portion which permits movement of the support portion relative to the grip portion during the course of a shaving stroke in a dynamic mode of shaving action, and structure for restricting the movement of the support portion relative to the grip portion, the movement restricting structure including a control portion movable between a first position which affords significant movement restriction and a second position which affords less movement restriction.