PET-DOOR-CONTAINING INSERT UNIT FOR A SLIDING-DOOR

专利名称：PET-DOOR-CONTAINING INSERT UNIT FOR

A SLIDING-DOOR FRAME

发明人：RAY E. BLACKWELL申请号：US3654733D申请日：19700305公开号：US3654733A公开日：19720411

摘要：A pet-door-containing insert unit for a sliding-door frame of the type includingupper and lower, substantially parallel, laterally directed, sliding-door trackways, andend-positioned, vertically directed door jamb, and at least one sliding door cooperatingwith said sliding-door frame and normally lockingly abuttable with said vertically directeddoor jamb. The pet-door-containing insert unit includes an insert unit frame adapted tobe positioned vertically between the upper and lower trackways of the sliding-doorframe, with one side portion thereof being adapted to abut the door jamb of the sliding-door frame and with the other side portion thereof being adapted to abut the laterallymovable, vertical edge of a sliding door which normally abuts the door jamb, thusproviding a complete closure of the opening defined by the sliding-door frame, saidclosure comprising, in part, the conventional sliding door and, in part, the pet-door-containing insert unit of the present invention which contains a pet-doorway-definingframe means provided with a normally closed, pet-openable door member positionedthereacross and, in certain forms of the invention, an additional auxiliary, controllablyremovable sealing door for completely and positively sealing the pet-doorway-definingopening, when desired. In one preferred form, the auxiliary door may be mounted on

either side of the pet-doorway-defining frame means.

申请人：RAY E. BLACKWELL

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