Lamp changing module
First Claim
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1. A lamp changing module for totally enclosing and assuring the total enclosure of a lamp at the time when the module is withdrawn from a support means, and permitting exposure of the lamp when it is connected to said support means, said module comprising:
- an internal sheath having an axis and a window facing said axis, said window having a peripheral extent not greater than l80°
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lamp mounting means non-rotatably secured to said sheath, and connected thereto for axial movement therewith, said lamp mounting means being adapted to support a lamp so it emits light toward said window;
electrical connection means carried by said lamp mounting means adapted to make electrical connection with the lamp;
a tubular cover surrounding said sheath having an axis and an aperture facing said axis, said cover being mounted to said sheath for rotation relative thereto, said axes being coincident or parallel, and said window and aperture being so disposed and arranged that in a first relative angular position of the sheath and cover they are aligned to give direct visual access to the lamp, and in a second relative angular position they are non-aligned so as to prevent direct visual access to the lamp; and
key means having a first portion attachable to said support means and a second portion carried by the module, said key means preventing removal of the module from the support means when the sheath and the cover are in said first relative angular position, and enabling removal of the module from the support means when the sheath and the cover are in said second relative angular position.
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Abstract
A lamp changing module for totally enclosing a lamp when the module is withdrawn from a support such as an illuminator cabinet, and permitting exposure of the lamp when properly installed and connected to the support. A potentially explosive lamp is thereby contained within the module when it is removed so that even if it explodes it will not harm nearby personnel. It also protects personnel from burn hazards associated with lamp changing.
12 Citations
22 Claims
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1. A lamp changing module for totally enclosing and assuring the total enclosure of a lamp at the time when the module is withdrawn from a support means, and permitting exposure of the lamp when it is connected to said support means, said module comprising:
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an internal sheath having an axis and a window facing said axis, said window having a peripheral extent not greater than l80°
;lamp mounting means non-rotatably secured to said sheath, and connected thereto for axial movement therewith, said lamp mounting means being adapted to support a lamp so it emits light toward said window; electrical connection means carried by said lamp mounting means adapted to make electrical connection with the lamp; a tubular cover surrounding said sheath having an axis and an aperture facing said axis, said cover being mounted to said sheath for rotation relative thereto, said axes being coincident or parallel, and said window and aperture being so disposed and arranged that in a first relative angular position of the sheath and cover they are aligned to give direct visual access to the lamp, and in a second relative angular position they are non-aligned so as to prevent direct visual access to the lamp; and
key means having a first portion attachable to said support means and a second portion carried by the module, said key means preventing removal of the module from the support means when the sheath and the cover are in said first relative angular position, and enabling removal of the module from the support means when the sheath and the cover are in said second relative angular position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An illuminator assembly, comprising in combination:
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support means; and
a lamp changing module for removable attachment to said support means, said lamp changing module comprising;an internal sheath having an axis and a window facing from said axis, said window having a peripheral extent not greater than 180°
;lamp mounting means non-rotatably secured to said sheath, and connected thereto for axial movement therewith, said lamp mounting means being adapted to support a lamp so it emits light toward said window; electrical connection means carried by said lamp mounting means adapted to make electrical connection with the lamp; a tubular cover surrounding said sheath having an axis and an aperture facing said axis, said cover being mounted to said sheath for rotation relative thereto, said axes being coincident or parallel and said window and aperture being so disposed and arranged that in a first relative angular position of the sheath and cover they are aligned to give direct visual access to the lamp, and in a second relative angular position they are non-aligned so as to prevent direct visual access to the lamp; and key means having a first portion attachable to said support means and a second portion carried by the module, said key means preventing removal of the module from the support means when the sheath and the cover are in said first relative angular position, and enabling removal of the module from the support means only when the sheath and the cover are in said second relative angular position. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification