Abstract:
A container can have a body with an integrally formed base attached to the body. The base includes a concave annular wall extending from the container sidewall to a standing surface, and an inner wall extending from the standing surface to a substantially flat inner annular wall. The inner annular wall is recessed in the base and is substantially perpendicular to the container sidewall. The inner annular wall includes a centrally located dimple. The dimple includes a plurality of spaced apart and radially extending indented ribs. One or more of the ribs extend radially into a brace that tapers to meet the inner annular wall.
Abstract:
A blow-molded plastic container and a separately formed injection-molded plastic handle adapted to be ultrasonically welded together. A pattern of energy directors is located on one of the confronting welding areas of the handle and the container sidewall. The handle has an elongate grip defining a grip centerline and the energy directors are located on both sides of the grip centerline adjacent opposite ends of the elongate grip.
Abstract:
A method for attaching a service device, such as a plastic handle, to a flexible container sidewall, and a container prepared by the method. The inside of the container is supported rigidly to effect a strong bond between the container and the handle.
Abstract:
The disclosure relates to a generic class of ubiquitin-specific proteases which specifically cleave at the C-terminus of the ubiquitin moiety in a ubiquitin fusion protein irrespective of the size of the ubiquitin fusion protein. More specifically, the disclosure relates to ubiquitin-specific proteases of this class which have been isolated from a cell. The disclosure also relates to isolated DNA sequences encoding the proteases of this class.
Abstract:
A container can have a body with an integrally formed base attached to the body. The base includes a concave annular wall extending from the container sidewall to a standing surface, and an inner wall extending from the standing surface to a substantially flat inner annular wall. The inner annular wall is recessed in the base and is substantially perpendicular to the container sidewall. The inner annular wall includes a centrally located dimple. The dimple includes a plurality of spaced apart and radially extending indented ribs. One or more of the ribs extend radially into a brace that tapers to meet the inner annular wall.
Abstract:
A blow molded container having a multi-functional base which enables use of the container in both hot-fill operations and pasteurization/retort operations and enables efficient vertical stacking of like containers. To this end, a portion of the base is capable of flexing upwardly and/or downwardly in response to variations in pressures in a filled and sealed container. Structurally, the base has a discontinuous concave outer annular wall forming a discontinuous standing ring and an inner annular wall functioning as a flex panel. The inner annular wall connects outwardly to a plurality of radial webs extending at an elevation above the standing ring and connects inwardly to an anti-inverting, upwardly-projecting dome. Preferably, a shoulder extends radially inward on the inward facing side of the outer annular wall above a level of the standing ring to facilitate vertical stacking of containers having like bases.
Abstract:
A reinforced finish is on a blow-molded container. An insert is permanently attached on the finish of a preform from which the container is blown, or directly on the finish of the blow-molded container. The insert is ring-shaped, forms a portion of the top surface of the finish, is made from a rigid plastic material, and is positioned entirely above the threads.
Abstract:
There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one trialkyl ortho ester as a readily autoxidizable organic substance.
Abstract:
There is disclosed the preparation of a degradable polymeric material consisting essentially of an organic polymeric base containing a degradation-promoting amount of a partially degraded organic polymer. The organic polymeric base and the degradation-promoting additive may be derived from the same or different polymers. The invention is especially useful in controlling the environmental deterioration of plastics. The rate of deterioration is a function of the environmental conditions such as light, oxygen, and temperature; the concentration of the additive; and the chemical structure(s) of both the base and the additive.
Abstract:
A container can have a body with an integrally formed base attached to the body. The base includes a concave annular wall extending from the container sidewall to a standing surface, and an inner wall extending from the standing surface to a substantially flat inner annular wall. The inner annular wall is recessed in the base and is substantially perpendicular to the container sidewall. The inner annular wall includes a centrally located dimple. The dimple includes a plurality of spaced apart and radially extending indented ribs. One or more of the ribs extend radially into a brace that tapers to meet the inner annular wall.