US3887801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical operating lamp with individual spot-lights
Assignee: Original Hanau Quarzlampen GmbH
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Filing: 1974-01-24
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Granted: 1975-06-03
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Expires: 1994-01-24
Abstract
Abstract The present invention relates to a surgical operating lamp with individual spot-lights disposed around a central axis of the lamp, the light rays of said spot-lights meeting approximately on this axis and at a desired distance from the surgical operating lamp, as a result of an adjustable inclination of the individual projectors to the central axis. A single handle adjusts all the individual spot-lights in the lamp.
Inventors
- 👤 Karl F Ilzig
- 👤 Klaus M Junginger
- 👤 Alois Rieth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:24
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/02; F21V17/00; F21V17/02; F21W; F21W2131/00; F21W2131/20; F21W2131/205
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
241 words
In a surgical operating lamp having a housing with at least one hole therEthrough and a plurality of individual lights pivotally mounted within said housing and disposed about a central axis of the lamp such that the rays of each individual light meet on the central axis at a desired distance from the lamp, the improved lamp pivoting means comprising a. cam means within the housing having an annular intermediate wall oriented perpendicular to the central axis of the lamp, an upper wall attached to the outer periphery of said annular intermediate wall and extending in a first direction, said upper wall having a plurality of slots therethrough defining a plurality of cam surfaces, the longitudinal axes of said slots inclined with respect to the central axis of said lamp, and a lower wall attached to the inner periphery of said annular intermediate wall and extending in a direction opposite that of said upper wall, said lower wall pivotally extending through the hole in said lamp housing; b. a handle attached to said lower wall and extending exteriorly of said lamp housing; and c. pins affixed to each individual light and bearing on one of the cam surface of said cam means, such that rotation of said handle produces a corresponding rotation of said cam means which thereby causes said lights to pivot about an axis tangent to a common circle drawn about the central axis of the surgical operating lamp.
Claim 2
Dependent Claim
241 words
In a surgical operating lamp having a housing with at least one hole therEthrough and a plurality of individual lights pivotally mounted within said housing and disposed about a central axis of the lamp such that the rays of each individual light meet on the central axis at a desired distance from the lamp, the improved lamp pivoting means comprising a. cam means within the housing having an annular intermediate wall oriented perpendicular to the central axis of the lamp, an upper wall attached to the outer periphery of said annular intermediate wall and extending in a first direction, said upper wall having a plurality of slots therethrough defining a plurality of cam surfaces, the longitudinal axes of said slots inclined with respect to the central axis of said lamp, and a lower wall attached to the inner periphery of said annular intermediate wall and extending in a direction opposite that of said upper wall, said lower wall pivotally extending through the hole in said lamp housing; b. a handle attached to said lower wall and extending exteriorly of said lamp housing; and c. pins affixed to each individual light and bearing on one of the cam surface of said cam means, such that rotation of said handle produces a corresponding rotation of said cam means which thereby causes said lights to pivot about an axis tangent to a common circle drawn about the central axis of the surgical operating lamp.
Claim 3
Dependent Claim
241 words
In a surgical operating lamp having a housing with at least one hole therEthrough and a plurality of individual lights pivotally mounted within said housing and disposed about a central axis of the lamp such that the rays of each individual light meet on the central axis at a desired distance from the lamp, the improved lamp pivoting means comprising a. cam means within the housing having an annular intermediate wall oriented perpendicular to the central axis of the lamp, an upper wall attached to the outer periphery of said annular intermediate wall and extending in a first direction, said upper wall having a plurality of slots therethrough defining a plurality of cam surfaces, the longitudinal axes of said slots inclined with respect to the central axis of said lamp, and a lower wall attached to the inner periphery of said annular intermediate wall and extending in a direction opposite that of said upper wall, said lower wall pivotally extending through the hole in said lamp housing; b. a handle attached to said lower wall and extending exteriorly of said lamp housing; and c. pins affixed to each individual light and bearing on one of the cam surface of said cam means, such that rotation of said handle produces a corresponding rotation of said cam means which thereby causes said lights to pivot about an axis tangent to a common circle drawn about the central axis of the surgical operating lamp.
Claim 4
Dependent Claim
241 words
In a surgical operating lamp having a housing with at least one hole therEthrough and a plurality of individual lights pivotally mounted within said housing and disposed about a central axis of the lamp such that the rays of each individual light meet on the central axis at a desired distance from the lamp, the improved lamp pivoting means comprising a. cam means within the housing having an annular intermediate wall oriented perpendicular to the central axis of the lamp, an upper wall attached to the outer periphery of said annular intermediate wall and extending in a first direction, said upper wall having a plurality of slots therethrough defining a plurality of cam surfaces, the longitudinal axes of said slots inclined with respect to the central axis of said lamp, and a lower wall attached to the inner periphery of said annular intermediate wall and extending in a direction opposite that of said upper wall, said lower wall pivotally extending through the hole in said lamp housing; b. a handle attached to said lower wall and extending exteriorly of said lamp housing; and c. pins affixed to each individual light and bearing on one of the cam surface of said cam means, such that rotation of said handle produces a corresponding rotation of said cam means which thereby causes said lights to pivot about an axis tangent to a common circle drawn about the central axis of the surgical operating lamp.
Claim 5
Dependent Claim
13 words
The improved surgical operating lamp of claim 1 wherein said slots are linear.
Claim 6
Dependent Claim
33 words
The improved surgical operating lamp of claim 2 wherein the longitudinal axis of said slots are at an angle of from 75* to 80* with respect to the central axis of the lamp.
Claim 7
Dependent Claim
27 words
The improved surgical operating lamp of claim 1 wherein the longitudinal axis of said pins are 90* with respect to the pivot axis of the individual lights.
Claim 8
Dependent Claim
19 words
The improved surgical operating lamp of claim 1 wherein said handle means is releasably attached to said lower wall.
Claim 9
Dependent Claim
29 words
The improved surgical operating lamp of claim 1 wherein frictional anti-rotation means are interposed between said housing and said cam means to prevent inadvertent rotation of said cam means.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |