US4027353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus, particularly for cleaning window panes
Assignee: Individual
•
Filing: 1976-06-04
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Granted: 1977-06-07
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Expires: 1996-06-04
Abstract
Abstract A cleaning apparatus, particularly for cleaning window panes, is fitted with a replaceable strip-shaped rubber wiping element, a U-section holding sheath accommodating the rear edge of the wiping element and, at the forward end of a handle for holding the cleaning apparatus, two clamping plates of which one is detachable and secures the wiping element in its holding sheath. The detachable clamping plate is formed at its transverse front edge with an inwardly angled tapering lip which engages between one side of the holding sheath and the wiping element, and which is provided on its outside flank with rib-like teeth extending transversely to the longitudinal axis of the lip.
Inventors
- 👤 Henry Morton Unger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:29
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
135 words
A cleaning apparatus, particularly for cleaning window panes, fitted with a replaceable strip-shaped rubber wiping element (5) having front, rear and side edges, a U-section holding sheath (6) accommodating the rear edge of the wiping element and, at the forward end of a handle for holding the cleaning apparatus, two clamping plates (2, 3) of which one is detachable and secures the wiping element in its holding sheath, the detachable clamping plate being formed at its transverse front edge with an inwardly and rearwardly directed tapering lip (7) which curls over the front edge of one side of the holding sheath and bears against the wiping element, and which is provided on its outside flank with rib-like teeth (8) extending transversely to the longitudinal axis of the lip, the teeth biting into the wiping element.
Claim 2
Dependent Claim
135 words
A cleaning apparatus, particularly for cleaning window panes, fitted with a replaceable strip-shaped rubber wiping element (5) having front, rear and side edges, a U-section holding sheath (6) accommodating the rear edge of the wiping element and, at the forward end of a handle for holding the cleaning apparatus, two clamping plates (2, 3) of which one is detachable and secures the wiping element in its holding sheath, the detachable clamping plate being formed at its transverse front edge with an inwardly and rearwardly directed tapering lip (7) which curls over the front edge of one side of the holding sheath and bears against the wiping element, and which is provided on its outside flank with rib-like teeth (8) extending transversely to the longitudinal axis of the lip, the teeth biting into the wiping element.
Claim 3
Dependent Claim
52 words
A cleaning apparatus according to claim 1, wherein the detachable clamping plate (3) is provided on each lateral edge with a tab-like angled portion (9, 10), whereas the other clamping plate (2) is formed with corresponding cut-out recesses (11, 12) with which the tab-like angled portions are adapted to snap into engagement.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |