Patent US5602973A successfully refreshed from Google Patents.
Patent US4833788A successfully refreshed from Google Patents.
US4833788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Univeral level light adapter
Assignee: Individual
•
Filing: 1987-11-09
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Granted: 1989-05-30
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Expires: 2007-11-09
Abstract
Abstract A spirit level light adapter assembly having a housing which is securable to a spirit level. The adapter has a pair of flexible, resilient, light supports which are extendable from an opening at each end of said housing. The housing contains a battery, a switch and a circuit connecting light emitting components in the end of each light support. The housing is securable to any size spirit level to permit the sight openings and/or the work element to be illuminated.
Inventors
- 👤 John C. Munro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:55
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/32
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
146 words
A spirit level light adapter kit assembly for easy attachment to a spirit level for lighting of the level and its work are, the level to which the light kit assembly will be attached having a substantially rectangular frame and a sight opening, said light adapter comprising: a housing which is removably securable to said frame; at least one elongated, bendably flexible, stiffly resilient tubular light support member having a distal end which supports a light emitting means reciprocally movable into and other of said housing for light the sight opening and/or work area; a source of power for energizing said light emitting means arranged within a circuit connected to said light emitting means with a control switch to regulate said power in said circuit in said housing; and a threadable fastener securement means for removably securing said housing to the frame of a spirit level.
Claim 2
Dependent Claim
146 words
A spirit level light adapter kit assembly for easy attachment to a spirit level for lighting of the level and its work are, the level to which the light kit assembly will be attached having a substantially rectangular frame and a sight opening, said light adapter comprising: a housing which is removably securable to said frame; at least one elongated, bendably flexible, stiffly resilient tubular light support member having a distal end which supports a light emitting means reciprocally movable into and other of said housing for light the sight opening and/or work area; a source of power for energizing said light emitting means arranged within a circuit connected to said light emitting means with a control switch to regulate said power in said circuit in said housing; and a threadable fastener securement means for removably securing said housing to the frame of a spirit level.
Claim 3
Dependent Claim
34 words
A spirit level light adapter assembly as recited in claim 1, wherein said housing has an end wall having an opening therethrough, said light support member being movable back and forth through said opening.
Claim 4
Dependent Claim
36 words
A spirit level light adapter assembly as recited in claim 2, wherein said light support member has a blocking element on its proximal end thereof, to prevent said light support from being pulled from said opening.
Claim 5
Dependent Claim
32 words
A spirit level light adapter assembly as recited in claim 3, wherein said blocking element comprises an annular ridge arranged on the edge of said distal end of said light support member.
Claim 6
Dependent Claim
27 words
A spirit level light adapter assembly as recited in claim 3, wherein said blocking element comprises a tab on said distal end of said light support member.
Claim 7
Dependent Claim
32 words
A spirit level light adapter assembly as recited in claim 5, wherein said light emitting means comprises a bulb inserted into a socket on the distal end of said light support member.
Claim 8
Dependent Claim
41 words
A spirit level light adapter assembly as recited in claim 5, wherein said housing includes an inner wall arranged so as to provide an elongated chamber for said light support member, to keep said light support member aligned in said housing.
Claim 9
Dependent Claim
19 words
A spirit level light adapter assembly as recited in claim 7, wherein said source of power comprises a battery.
Claim 10
Dependent Claim
29 words
A spirit level light adapter assembly as recited in claim 7, wherein said light support member comprises a coaxial cable having the light emitting means at its distal-most end.
Claim 11
Dependent Claim
28 words
A spirit level light adapter assembly as recited in claim 7, wherein said light support member comprises a woven metallic cable having a layer of plastic wrapped therearound.
Claim 12
Dependent Claim
21 words
A spirit level light adapter assembly as recited in claim 7, wherein said light support member comprises a bendable metal tube.
Claim 13
Dependent Claim
24 words
A spirit level light adapter assembly as recited in claim 7, wherein said light support member is extendable over said frame of said level.
Claim 14
Dependent Claim
24 words
A spirit level light adapter assembly as recited in claim 12, wherein said housing has a pair of light support members extendably arranged therein.
Claim 15
Dependent Claim
26 words
A spirit level light adapter assembly as recited in claim 13, wherein said pair of light support members are extendable through opposite ends of said housing.
Claim 16
Dependent Claim
32 words
A spirit level light adapter assembly as recited in claim 13, wherein said housing is about four inches long and about one and three quarter inches wide and about one inch high.
Claim 17
Dependent Claim
28 words
A spirit level light adapter assembly as recited in claim 13, wherein said securement means comprises a threaded fastener, interengagable with respect to the frame of a level.
Claim 18
Dependent Claim
25 words
A spirit level light adapter assembly as recited in claim 16, wherein said securement means also comprises a holding plate which receives said threaded fasteners.
Claim 19
Dependent Claim
103 words
A spirit level light adapter kit assembly easily attachable to a spirit level for lighting its sight openings and its work are, comprising: a housing containing an elongated stiffly bendable articulable light support having a distal end with a light thereon to be reciprocably movable into and out of said housing and extendable over a spirit level to permit a light on the distal end thereof to light the sight opening and or its work area; a power supply for energizing said light on the distal end of said light support; and attachment means for removably securing said housing to a spirit level.
Claim 20
Dependent Claim
103 words
A spirit level light adapter kit assembly easily attachable to a spirit level for lighting its sight openings and its work are, comprising: a housing containing an elongated stiffly bendable articulable light support having a distal end with a light thereon to be reciprocably movable into and out of said housing and extendable over a spirit level to permit a light on the distal end thereof to light the sight opening and or its work area; a power supply for energizing said light on the distal end of said light support; and attachment means for removably securing said housing to a spirit level.
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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) | 1992-05-29 | 1992-11-28 | 1993-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-29 | 1996-11-28 | 1997-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-29 | 2000-11-28 | 2001-05-30 | $7700.00 | Window Closed / Lapsed |