US3755993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable, vacuum cleaner bag
Assignee: Individual
•
Filing: 1971-07-22
•
Granted: 1973-09-04
•
Expires: 1991-07-22
Abstract
Abstract A novel and inexpensive, dust-collector bag of disposable, low cost, paper-like material supported within the chamber of the shell of vacuum cleaning apparatus, the bag having one end slidably removable from the shell air inlet port and having a low cost, disposable slide-fastener, preferably of the twin-helix type constructed of plastic, adhesively sealed transversely in an opposite end opening in the bag to provide means to quickly remove the bag from the shell and to enpty out the contents and thereby allow easy and continued reuse of the bag, rather than one use and discard thereof.
Inventors
- 👤 P Cote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:25
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/149; Y; Y10; Y10S; Y10S55/00; Y10S55/02; Y10S55/03; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/253
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
147 words
A disposAble vacuum cleaner bag for use within the shell of a vacuum cleaner, said bag comprising: a body of low cost, throw-away, porous material having one end with a relatively small air inlet port therein adapted for removable attachment on the inlet port of said shell, having porous side walls free of access openings, and having an enlarged dirt outlet of predetermined length at the other end thereof for emptying out the contents of said bag; low cost, disposable, twin helix, slide fasteners of relatively soft plastic material affixed to cloth tapes, said tapes being of predetermined length greater than the length of said dirt outlet and extending along the edges thereof; and a layer of adhesive adhering said tapes to said bag to form a sift-proof sealed joint therewith; said tapes projecting at each opposite end thereof beyond said bag to form finger grip tabs.
Claim 2
Dependent Claim
147 words
A disposAble vacuum cleaner bag for use within the shell of a vacuum cleaner, said bag comprising: a body of low cost, throw-away, porous material having one end with a relatively small air inlet port therein adapted for removable attachment on the inlet port of said shell, having porous side walls free of access openings, and having an enlarged dirt outlet of predetermined length at the other end thereof for emptying out the contents of said bag; low cost, disposable, twin helix, slide fasteners of relatively soft plastic material affixed to cloth tapes, said tapes being of predetermined length greater than the length of said dirt outlet and extending along the edges thereof; and a layer of adhesive adhering said tapes to said bag to form a sift-proof sealed joint therewith; said tapes projecting at each opposite end thereof beyond said bag to form finger grip tabs.
Claim 3
Dependent Claim
47 words
A disposable bag as specified in claim 1, wherein: the edges of said bag on each side of said dirt outlet of predetermined length are formed by folds in the material of said bag and said tapes are adhered by said layer of adhesive to said folds.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |