US4435925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shield for eaves drain gutter
Assignee: Individual
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Filing: 1978-10-30
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Granted: 1984-03-13
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Expires: 1998-10-30
Abstract
Abstract A shield is provided to prevent leaves, snow, ice and other solid debris from entering an eaves drain trough or gutter. The shield, which can be mounted above a conventional drain gutter, is of integral construction, and permits evaporation of stagnant water in the gutter.
Inventors
- 👤 Henry J. Jefferys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:12
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/076
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
205 words
A gutter shield of integral construction adapted to be mounted under the eaves of a building and above a conventional drain gutter comprising a flat mounting portion, a downwardly sloped collector portion which tangentially merges with a curved nose portion, a re-entrant portion emerging tangentially from below said nose portion as a continuation thereof and downwardly sloped in a direction substantially opposite to the direction of slope of said collector portion, a leg portion pendant from said re-entrant portion as a continuation thereof and comprised of a multitude of uniformly spaced parallel teeth extending downward and terminating adjacent the outer lip of said drain gutter, the spaces between said teeth having a length to width ratio between 3:1 and 9:1 and the area of said spaces comprising between 30% and 60% of the total area of said leg portion, said teeth originating at a sharply defined angle of between 90° and 140° with respect to said re-entrant portion, and a conductor surface beginning at the locus of origination of said leg portion as a continuation of said re-entrant portion and extending inwardly in the general direction of said mounting portion, the outermost extremity of said nose portion projecting 1/2" to 11/2" beyond said leg portion.
Claim 2
Dependent Claim
205 words
A gutter shield of integral construction adapted to be mounted under the eaves of a building and above a conventional drain gutter comprising a flat mounting portion, a downwardly sloped collector portion which tangentially merges with a curved nose portion, a re-entrant portion emerging tangentially from below said nose portion as a continuation thereof and downwardly sloped in a direction substantially opposite to the direction of slope of said collector portion, a leg portion pendant from said re-entrant portion as a continuation thereof and comprised of a multitude of uniformly spaced parallel teeth extending downward and terminating adjacent the outer lip of said drain gutter, the spaces between said teeth having a length to width ratio between 3:1 and 9:1 and the area of said spaces comprising between 30% and 60% of the total area of said leg portion, said teeth originating at a sharply defined angle of between 90° and 140° with respect to said re-entrant portion, and a conductor surface beginning at the locus of origination of said leg portion as a continuation of said re-entrant portion and extending inwardly in the general direction of said mounting portion, the outermost extremity of said nose portion projecting 1/2" to 11/2" beyond said leg portion.
Claim 3
Dependent Claim
27 words
The gutter shield of claim 1 having a hydrophilic outer surface such that the contact angle of water with said surface is between about 1° and 75°.
Claim 4
Dependent Claim
22 words
The gutter shield of claim 1 wherein the radius of curvature of said curved nose portion is between about 0.5" and 2.0".
Claim 5
Dependent Claim
67 words
The gutter shield of claim 2 further defined by the relationship 22<(C/R)+D<250 wherein C is the sum of the angles of slope of said collector portion and said re-entrant portion expressed in degrees of angle, R is the radius of curvature of said curved nose portion expressed in inches, and D is the contact angle of water with said hydrophilic outer surface, measured in degrees of angle.
Claim 6
Dependent Claim
17 words
A gutter shield in accordance with claim 1 wherein said spaces exist where said leg portion originates.
Claim 7
Dependent Claim
26 words
A gutter shield in accordance with claim 9 wherein the upper extremes of the spaces between said teeth communicate with spaces having a horizontally elongated configuration.
Claim 8
Dependent Claim
61 words
A gutter shield in accordance with claim 1 wherein said spaced parallel teeth have been derived from said conductor surface by a cutting and bending operation, the teeth having curvature in a vertical plane, said curvature being opposite in direction to the curvature of the nose, the side extremities of said teeth being angled in the direction of said mounting portion.
Claim 9
Dependent Claim
24 words
A gutter shield in accordance with claim 1 wherein the lowermost extremities of said teeth engage with the outer lip of said drain gutter.
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) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |