Versatile mounting and adjustment system for passive infrared detector
First Claim
1. A PIR device and means for mounting said device comprising:
- a) housing means defining an enclosed space containing electrical elements of said device;
b) a lens element having a central axis and mounted upon said housing to focus infrared radiation upon one of said electrical elements;
c) a support member;
d) first means for mounting said housing upon said support member;
e) second means for mounting said support member upon a first type of pre-existing structure; and
f) third means for mounting said support member upon a second type of pre-existing structure, alternatively to said first type of structure.
1 Assignment
0 Petitions
Accused Products
Abstract
A mounting member for engagement with the housing of a PIR device includes a plurality of elongated, flexible arms for mounting the device in an operative position on a ceiling panel. The arms are hingedly attached to the mounting member and extend to terminal ends which are attached to one another. The arms may be moved toward one another to a flexed position to permit insertion through an opening in the ceiling panel, and return to their unflexed position to engage the panel adjacent the periphery of the opening. A first plurality of relatively short legs having inwardly directed hook portions are provided on the mounting member for engagement with the horizontal flange on an inverted T-shaped track member for supporting ceiling panels. A second plurality of short legs having outwardly directed hooked portions permit engagement of the mounting member with a wall plate having an opening therein. The mounting member and device housing may be jointly rotated about the central axis of the device lens for selective positioning of lens segments in a desired orientation, aided by the presence of fixed indicia on the device housing. Also, the device housing may be rotated with respect to the mounting member and frictionally secured in the desired position.
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Citations
72 Claims
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1. A PIR device and means for mounting said device comprising:
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a) housing means defining an enclosed space containing electrical elements of said device; b) a lens element having a central axis and mounted upon said housing to focus infrared radiation upon one of said electrical elements; c) a support member; d) first means for mounting said housing upon said support member; e) second means for mounting said support member upon a first type of pre-existing structure; and f) third means for mounting said support member upon a second type of pre-existing structure, alternatively to said first type of structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A versatile mounting system for PIR device, said mounting system comprising a member having
(a) integral, first engagement means constructed and arranged for releasable engagement with a suspended ceiling panel having a through opening therein and (b) integral hook-shaped second engagement means arranged for resilient releasable engagement with an inverted T-shaped track member having a horizontal flange for supporting ceiling panels.
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39. The method of mounting a PIR device on a planar panel having front and rear sides, said method comprising:
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a) forming a through opening having a predetermined cross-dimension in said panel; b) providing a pair of elongated, flexible members connected to said device and extending in angularly divergent directions to an unflexed position in which respective portions of said members are laterally spaced from one another by a distance greater than said cross-dimension; c) exerting a force on said members to effect movement of said portions toward one another to a flexed position wherein said portions are laterally spaced by a distance less than said cross-dimension; d) moving at least said portions of said members through said opening, from the front to the rear side of said panel, said device remaining on the front side; e) removing said force to permit said members to return to said unflexed position with said first portions of said members laterally spaced by a distance greater than said cross-dimension on the rear side of said panel and second portions of said members contacting said panel adjacent said opening to support said PIR device in an operative position on the front side of said panel.
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40. A PIR device and means for mounting and orienting said device comprising:
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a) housing means defining an enclosed space containing electrical elements of said device; b) a lens element having a central axis and circumferentially alternating segments of different focal angles extending outwardly from said central axis, said lens element being fixedly connected to said housing means to focus infra-red radiation upon one of said electrical elements; c) means fixedly positioned with respect to said housing means for engagement with a predetermined type of pre-existing structure to support said housing means upon said structure in a manner permitting rotation of said housing means, and thereby said lens element, about said central axis; and d) indicia fixedly positioned with respect to one of said segments having a known one of said focal angles, whereby the rotational position of said housing means is indicative of the directional orientation of a lens segment of known focal angle. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48)
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49. A mounting member for a PIR device which includes a housing, a substantially hemispherical lens having a central axis fixedly connected to said housing, and a first connecting means, said mounting member comprising:
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a) second connecting means for co-operative engagement with said first connecting means to effect mutual connection of said housing and said mounting member; b) first engagement means for engaging a first type of pre-existing structure to mount said PIR device in an operative position upon said structure and permitting manual, concurrent rotation of said mounting member and said device about said central axis; c) means for effecting rotation of said housing with respect to said mounting member about a rotational axis to rotate said central axis in a plane perpendicular to said central axis; and d) means for selectively, releasably fixing the relative positions of said housing and said mounting member with respect to said rotational axis. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A mounting member for a PIR device comprising:
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a) a substantially rigid, central portion; b) a plurality of elongated, flexible arms extending from said rigid portion for engagement with a ceiling panel; c) a plurality of first legs extending from said rigid portion for engagement with an inverted T-shaped track member for supporting ceiling panels; and d) a plurality of second legs extending from said rigid portion for engagement with a wall plate, whereby said mounting member may be selectively engaged with any of said panel, said track member and said plate to mount said PIR device in an operative position thereon. - View Dependent Claims (62, 63, 64, 65)
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66. A mounting member for releasable engagement with a ceiling panel having lower and upper sides and a through, circular opening of predetermined diameter, said mounting member comprising:
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a) a substantially rigid central portion having a major surface with a central axis perpendicular thereto and a cross-dimension greater than said predetermined diameter; b) a plurality of elongated, flexible arms each anchored at a first end to said central portion and extending to a second end; and c) said arms being movable between an unflexed position wherein portions of said arms intermediate of said first and second ends are spaced by a distance greater than said predetermined diameter, and a flexed position wherein said arms are spaced from one another along their entire lengths by a distance less than said predetermined diameter; whereby said arms may be moved to said flexed position and inserted through said opening from said lower to said upper side of said panel and, upon return of said arms to said unflexed position, said portions of said arms engage said panel adjacent the periphery of said opening and retain said mounting member upon said panel. - View Dependent Claims (67, 68, 69, 70, 71, 72)
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Specification