Abstract: A stackable, nestable, multi-level tray or basket useful for storing and transporting baked goods is provided which includes a floor and a pair of upstanding side walls configured for stacking identical trays as well as allowing the stacking of a tray with smaller, overall dimensions. The structure enables identical trays to slide on to each other in stacked or nested configurations. A multi-level tray includes sidewalls with a plurality of upright stacking posts extending from the floor to a vertical strip of material. Each stacking post flares out at its top end to a cantilevered, extending flat portion. Trays of smaller overall dimensions than the disclosed tray can be advantageously stacked on these extending flat portions.

Abstract: This invention deals with a novel multiple use business portfolio for use in storing and safely transporting documents, papers, cards, writing materials, which portfolio is also convenient.

Abstract: A lock is provided for use with a container having an annular end portion defining a top opening and a radially outwardly opening annular recess. A top wall defines a removable cover overlying the opening. The lock includes an elongate band of synthetic resin operatively associated with and circumferentially surrounding the top wall with opposite ends spaced apart and having radially inwardly projecting securing structure receivable in the recess for securing the top wall to the container. A locking structure is provided for constricting the spaced ends of the band to urge the securing structure radially inwardly comprising a pair of radially out-turned tabs of a high-strength synthetic resin secured to opposite end portions of the band as by vibration welding. A locking lever is movable to an over center position for adjustably drawing the tabs toward each other and releasably locking the securing structure in the annular recess in the over center position.

Abstract: A trash tank includes a tank body having an open top, a closed bottom, a horizontally extending slot, and a receiving space. A hollow casing is connected detachably to the tank body adjacent to the horizontally extending slot of the tank body. The hollow casing may receive a rolled-up strip of garbage sacks and has a slit which is communicated with the horizontally extending slot of the tank body.

Abstract: The invention provides a closable container having an access opening closable by closure doors comprising preferably two hinged doors hingedly mounted on the container on opposed sides of the access opening, and a releasable locking mechanism for the doors. The locking mechanism includes a pair of T-shaped pressure plates hingedly mounted by means of hinge pins on opposed sides of the access opening, to be pivotally displaceable around axes disposed at right angles to the pivotal axes of the hinged doors, to a closed position in which they are positioned over the doors to overlap at least partially with the edges of each door. An engagement block with a handle is provided to hold the pressure plates and the doors in the closed position, the engagement block being rotatably displaceable from a disengaged position to an engaged position in which it engages the pressure plates to exert force on the plates so as to press the edge regions of the doors uniformly against the sides of the access opening.

Abstract: An adaptor and a closure are formed with cooperating child resistant elements so that the adaptor can be applied to any type of container and the closure can be removed from the adaptor only by manipulation of the child resistant stops. Both the adaptor and closure are molded with precision surfaces as by injection molding so that the closure can be sealingly attached to the adaptor without the use of excessive force.

Abstract: A device for tracing a surface such as one defining the lens opening of an eyeglass frame includes a tracer element moved automatically about a rotational axis surrounded by the traced surface and arranged perpendicularly to the area enclosed by the surface. As this rotation occurs a carrier for the tracer element is moved along a second axis extending perpendicularly to the rotational axis in response to a position error signal developed by the tracer element to maintain the position error signal at a substantially zero value through the use of feedback circuitry. The positions of the carrier about the rotational axis and along the second axis are repeatedly captured during the tracing movement to provide point data defining the shape of the traced surface. Results are a smooth steady movement of the tracer element along the surface with a minimum amount of force being exerted on the traced surface by the tracer element.

Abstract: An improved gasket for use with manhole covers. The gasket is of the type which is fabricated from rubber and is held in a circular groove formed in the flat cover support surface of a cast iron frame of the type which holes a manhole cover. The manhole cover fits in the frame and rests on the gasket. The improved gasket has a vertical portion which is generally rectangular which fits into the circular groove. The gasket also has a horizontal portion which extends beyond the groove and onto the flat cover support surface of the frame.

Abstract: The container is particularly adapted for use in the disposal of biohazardous waste. The container includes an outer corrugated paperboard carton in which there is disposed a plastic refuse bag. The carton includes a top cover which has side walls which overlap side walls of the carton and which is pivotally connected to the remainder of the carton for movement to a closed position. The bag is disposed in the carton with its top portion being bloused over the top of the carton. When the top cover of the carton is closed, the top of the bag is caught between the top cover side walls and the carton side walls and held in place. A pivoting access flap is formed in the top cover to allow waste material to be dropped into the bag through the flap.

Abstract: A five sided steel box with a honeycomb member therein formed by corrugated sheets and defining a plurality of hexagonal elongate recesses. Spacers on the outer faces of the walls of the box have tie bars secured transversely thereto and the ends of the bars are welded to protective hoops. A door closes and seals the box and comprises a framework, a panel mounted on the framework by means of clamping screws or parallelogram linkage and coil springs, and a seal between the panel and the open side of the box. The framework is preferably hinged to protective hoops of the box at one side and provided with a latch arrangement at the other.

Abstract: The invention relates to freight containers, in particular containers for air transport with a supporting frame which is made of profiled sections or the like, the long sides of which frame comprise polygonal frames which have roof sections and reinforcing vertical struts, and are joined by transverse sections. In spite of being made according to standard, it should be possible to stack these readily on top of one another and secure them to each other. They should also feature facilities which allow access at all times to the freight to be transported. The supporting frame (7) of such an improved container (5) features, between the roof sections (18), clamping elements (21,24) to secure neighboring, stacked containers in place; also for stacking purposes, the roof sections are reinforced and the vertical struts (16) are positioned at the places of greatest load. If desired, the reinforced roof sections house facilities (40,41,42) to guide closure means (35) for stacked freight containers.

Abstract: A plastic drum for the storage of liquid or other flowable materials and suitable for industrial applications. The drum consists of a circular side wall, a flat top wall and a bulged bottom wall. The top wall includes a threaded fill hole and a threaded vent. Each hole is surrounded by an upstanding undercut lip. A circular flange is located at the juncture of the top wall and the side wall. The flange extends above the plane of the top wall and beyond the outer periphery of the side wall. The walls of the drum are each of the same thickness. The circular side wall includes a plurality of elongated arcuate depressions equidistantly spaced about the periphery thereof to form strengthening ribs. The bottom wall includes a peripheral ledge projecting downward to form a planar base for the drum. The center of the bulged portion of the bottom wall is coplanar with the base. A slot is provided in the flange about the top wall.

Abstract: A bag with an openable mouth carries a reclosable extruded plastic zipper inside the mouth. The zipper has complementary profiles separably interlockable in a closed condition of the zipper. A gasket flange structure in separably sealingly grippingly interengageable by and between the profiles in the closed condition of the zipper, and may also serve as a tamper evident or tamper discouraging device.