Patent US3935560A successfully refreshed from Google Patents.
US3935560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light guard
Assignee: Individual
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Filing: 1974-11-13
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Granted: 1976-01-27
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Expires: 1994-11-13
Abstract
Abstract A light guard molded from an electrically non-conductive synthetic resin and including a reflector member and a cage member provided with integrally molded hinge and latch means for retaining the members in latched relation against significant unlatching forces to which the light guard is subjected during use.
Inventors
- 👤 Harry M. Dorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:28
CPC Classifications
F; F21; F21V; F21V15/00; F21V15/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
148 words
A light guard molded of a plastic material and comprising generally complimentary first and second body portions forming a generally cylindrical guard having a generally closed top end and a generally open bottom end, said generally open bottom end including clamp means for removably fixing the light guard to a light bulb socket support means, generally at least one of said body portions comprising a cage member, fixed axis hinge means for hingedly securing said first and second body portions, positive latch means for normally maintaining said first and second body portions in closed relation, and said latch means including detent means for resisting radially inward and axial unlatching deformation of said first body portion relative to said second body portion, said detent means including an axially extending slot of generally C-shaped cross section for reception of a portion of one of said first and second body portions.
Claim 2
Dependent Claim
148 words
A light guard molded of a plastic material and comprising generally complimentary first and second body portions forming a generally cylindrical guard having a generally closed top end and a generally open bottom end, said generally open bottom end including clamp means for removably fixing the light guard to a light bulb socket support means, generally at least one of said body portions comprising a cage member, fixed axis hinge means for hingedly securing said first and second body portions, positive latch means for normally maintaining said first and second body portions in closed relation, and said latch means including detent means for resisting radially inward and axial unlatching deformation of said first body portion relative to said second body portion, said detent means including an axially extending slot of generally C-shaped cross section for reception of a portion of one of said first and second body portions.
Claim 3
Dependent Claim
16 words
The light guard of claim 1 wherein said hinge means comprises a socket and pintle hinge.
Claim 4
Dependent Claim
15 words
The light guard of claim 1 wherein one of said body portions comprises a reflector.
Claim 5
Dependent Claim
48 words
The light guard of claim 1 wherein said detent means includes detent members fixed to one of said first and second body portions for maintaining the other of said first and second body portions in latched relation to a latch member comprising an element of said latching means.
Claim 6
Dependent Claim
20 words
The light guard of claim 1 including a hook rotatably secured to one of said first and second body portions.
Claim 7
Dependent Claim
25 words
The light guard of claim 5 including means for selectively rotatably positioning said hook relative to said one of said first and second body portions.
Claim 8
Dependent Claim
44 words
The light guard of claim 1 wherein said clamp means comprises a first generally semicircular band integrally formed with one of said first and second body portions, a second generally semicircular band, and fastener means for removable securement of said first and second bands.
Claim 9
Dependent Claim
66 words
The light guard of claim 7 wherein said fastener means comprises at least one self-tapping threaded fastener passing through at least one aperture provided in one of said band portions, and the other of said band portions being provided with at least one integral stud having a bore sized to permit threaded securement of said at least one threaded fasteners to said at least one stud.
Claim 10
Dependent Claim
37 words
The light guard of claim 7 wherein at least one of said first and second generally semicircular bands is provided with means for adapting said clamp means for securement about support means of various diameters and materials.
Claim 11
Dependent Claim
22 words
The combination of claim 1 wherein said light guard is a trouble light guard adapted for securement to a light socket-handle assembly.
Claim 12
Dependent Claim
21 words
The combination of claim 1 wherein said light guard comprises a light guard for light socket fixed to a structural installation.
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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |