US4544990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminating telescopic device
Assignee: Individual
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Filing: 1984-09-17
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Granted: 1985-10-01
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Expires: 2004-09-17
Abstract
Abstract An illuminating telescopic device is described for use in a wide variety of applications, such as a signalling device, a conventional flashlight, an indicating light, a play light, and the like. The illuminating telescopic device includes one or more light transmissive extensible elements having a combined length greater than the length of its associated housing, so as to provide an effective signalling device when in use, while being compactly portable when stored within its housing.
Inventors
- 👤 Alex Wieselman
- 👤 Leonard D. Prince
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:42
CPC Classifications
F; F21; F21L; F21L4/00; F21S; F21S10/00; F21S10/02; F21V; F21V21/00; F21V21/14; F21V21/22
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
62 words
A light illuminating device comprising a housing having an internal compartment, an element mounted for extension along its longitudinal axis from a storage position within said compartment and internally of said housing to an operative position extending away from said compartment and externally of said housing, and means contained within said housing for internally illuminating said element when in said operative position.
Claim 2
Dependent Claim
62 words
A light illuminating device comprising a housing having an internal compartment, an element mounted for extension along its longitudinal axis from a storage position within said compartment and internally of said housing to an operative position extending away from said compartment and externally of said housing, and means contained within said housing for internally illuminating said element when in said operative position.
Claim 3
Dependent Claim
19 words
The light illuminating device of claim 1, wherein said element is at least partially constructed of light transmissive material.
Claim 4
Dependent Claim
16 words
The light illuminating device of claim 1, wherein said illuminating means comprises a source of light.
Claim 5
Dependent Claim
26 words
The light illuminating device of claim 3 further including focusing means arranged at one end of said element for focusing said light externally of said housing.
Claim 6
Dependent Claim
30 words
The light illuminating device of claim 1 further including means for releasably securing said element in its position within said housing and in its position extending away from said housing.
Claim 7
Dependent Claim
44 words
The light illuminating device of claim 5, wherein said securing means comprises a groove within the exterior of said element and a rib within the interior of said housing, said rib constructed and arranged to be received within said groove for securing said element.
Claim 8
Dependent Claim
18 words
The light illuminating device of claim 1, wherein said element comprises a longitudinally extending light transmissive hollow tube.
Claim 9
Dependent Claim
108 words
A light illuminating device comprising a housing having an internal compartment, a first element mounted for extension along its longitudinal axis from a storage position within said compartment and internally of said housing to an operative position extending away from said compartment and externally of said housing, a second element mounted for extension along the longitudinal axis of said first element from a storage position within said first element to an operative position extending away from said first element and externally of said housing, and means contained within said housing for internally illuminating said first and second elements when one of said elements is in said operative position.
Claim 10
Dependent Claim
108 words
A light illuminating device comprising a housing having an internal compartment, a first element mounted for extension along its longitudinal axis from a storage position within said compartment and internally of said housing to an operative position extending away from said compartment and externally of said housing, a second element mounted for extension along the longitudinal axis of said first element from a storage position within said first element to an operative position extending away from said first element and externally of said housing, and means contained within said housing for internally illuminating said first and second elements when one of said elements is in said operative position.
Claim 11
Dependent Claim
22 words
The light illuminating device of claim 8, wherein said first and second elements are at least partially constructed of light transmissive material.
Claim 12
Dependent Claim
25 words
The light illuminating device of claim 9, wherein the light transmissive characteristics of said first and second elements vary over the length of said elements.
Claim 13
Dependent Claim
16 words
The light illuminating device of claim 8, wherein said illuminating means comprises a source of light.
Claim 14
Dependent Claim
27 words
The light illuminating device of claim 11 further including focusing means arranged at one end of said second element for focusing said light externally of said housing.
Claim 15
Dependent Claim
36 words
The light illuminating device of claim 12, wherein said focusing means is arranged external to and adjacent said housing when said first element is within said housing and said second element is within said first element.
Claim 16
Dependent Claim
25 words
The light illuminating device of claim 8, wherein said first and second elements are substantially co-extensive when said second element is within said first element.
Claim 17
Dependent Claim
20 words
The light illuminating device of claim 8, wherein said first and second elements comprise longitudinally extending light transmissive hollow tubes.
Claim 18
Dependent Claim
25 words
The light illuminating device of claim 15, wherein the internal diameter of said first element is greater than the external diameter of said second element.
Claim 19
Dependent Claim
33 words
The light illuminating device of claim 8 further including first securing means for releasably securing said first element in its position within said housing and in its position extending away from said housing.
Claim 20
Dependent Claim
35 words
The light illuminating device of claim 17 further including second securing means for releasably securing said second element in its position within said first element and in its position extending away from said first element.
Claim 21
Dependent Claim
42 words
The light illuminating device of claim 18, wherein said first securing means comprises a groove within the exterior of said first element and a rib within the interior of said housing, said rib constructed and arranged to be received within said groove.
Claim 22
Dependent Claim
52 words
The light illuminating device of claim 18, wherein said second securing means comprises a groove within the exterior of said second element and a rib within the interior of said first element, said rib constructed and arranged to be received within said groove for securing said second element within said first element.
Claim 23
Dependent Claim
31 words
The light illuminating device of claim 20, wherein said second securing means includes a cam surface arranged for engaging said rib to facilitate the receiving of said rib within said groove.
Claim 24
Dependent Claim
34 words
The light illuminating device of claim 8, wherein said second element is arranged in telescopic relationship within said first element and said first and second elements are arranged in telescopic relationship within said housing.
Claim 25
Dependent Claim
29 words
The light illuminating device as set forth in claim 8, wherein the extended combined length of said first and second elements is greater than the length of said housing.
Claim 26
Dependent Claim
19 words
The light illuminating device as set forth in claim 8, wherein said housing is constructed of light transmitting material.
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) | 1988-09-30 | 1989-04-01 | 1989-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-30 | 1993-04-01 | 1993-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-30 | 1997-04-01 | 1997-10-01 | $7700.00 | Window Closed / Lapsed |