초록 ▼

A pet door has interior (22) and exterior frames (28) that assemble to define a tunnel through which a pet may pass. Attaching to the frames are rigid inner (34) and outer doors (36) that are each held closed at a non-vertical angle by force of their own weights. The outer door (36) and interior fra

A pet door has interior (22) and exterior frames (28) that assemble to define a tunnel through which a pet may pass. Attaching to the frames are rigid inner (34) and outer doors (36) that are each held closed at a non-vertical angle by force of their own weights. The outer door (36) and interior frame (22) are heavily insulated to reduce heat transfer through the pet door, and the pet door is windproof and extremely weather resistant. A locking bar (48) provides a secure method of locking the doors shut to prevent unwanted entry by animal or human.

대표청구항 ▼

A pet door has interior (22) and exterior frames (28) that assemble to define a tunnel through which a pet may pass. Attaching to the frames are rigid inner (34) and outer doors (36) that are each held closed at a non-vertical angle by force of their own weights. The outer door (36) and interior fra

A pet door has interior (22) and exterior frames (28) that assemble to define a tunnel through which a pet may pass. Attaching to the frames are rigid inner (34) and outer doors (36) that are each held closed at a non-vertical angle by force of their own weights. The outer door (36) and interior frame (22) are heavily insulated to reduce heat transfer through the pet door, and the pet door is windproof and extremely weather resistant. A locking bar (48) provides a secure method of locking the doors shut to prevent unwanted entry by animal or human. a lower flat element made of shaped rubber-like material, which has a hollow upper region delimited by a border with air passage openings which extend laterally with respect to the ground resting plane; an upper element; a membrane made of waterproof and vapor-permeable material, which is interposed between said lower and upper elements at said hollow region; said lower and upper elements and said membrane being joined hermetically in the perimetric regions of mutual contact. eps of: providing a frame for supporting an axle assembly comprising an axial shaft with a wheel mounted on a wheel bearing at each end; delivering an axle assembly to said frame; providing a horizontally mounted ram and cylinder adjacent at least one of said wheels at a repacking station, said ram having a greasing head at its distal end, said greasing head having a nose portion adapted to pivot relative to a body portion of said greasing head, said nose portion having an open-mouthed greasing chamber; advancing said ram toward said wheel so that said open-mouthed greasing chamber is in communication with said wheel bearing; and delivering pressurized grease to said greasing chamber and, therefor, to said bearing. 11. A method of packing wheel bearings with grease comprising the steps of: providing a frame for supporting an axle assembly comprising an axle shaft with a wheel mounted on a wheel bearing at each end; delivering an axle assembly to said frame; providing a horizontally mounted ram and cylinder adjacent each of said wheels, each ram having a greasing head at its distal end, said greasing head having a nose portion adapted to pivot relative to a body portion of said greasing head, said nose portion having an openmouthed greasing chamber; lifting the axle assembly from said frame and supporting said axle assembly in substantial axial alignment with each ram; advancing each ram toward each wheel so that each open-mouthed greasing chamber is in communication with said wheel bearing; and delivering pressurized grease to said greasing chamber and, therefor, to said bearing.