Claims
- 1. A bracket-reed switch mounting apparatus adapted to be mounted on an elevated portion of a track for a vertically movable door for positioning the switch to provide an electrical signal when the door moves from a selected position, comprising:
- a rigid non-magnetic bracket body having a first portion adapted to be attached to an elevated portion of a door track for a vertically movable door;
- said body having a second portion which is adapted to be positioned substantially parallel to the plane of the door and in close proximity to a portion of the door when the door is in a selected position;
- said second portion having a resilient material secured therein which has an internal gas pocket has a gaseous medium in which the reed switch is positioned in a floating suspension relative to said body to thereby minimize shock damage to said reed switch by external forces; and
- a magnet positioned with the door to activate the switch when the door is moved from said selected position.
- 2. The apparatus set forth in claim 1, wherein: the gas in said internal gas pocket is air.
- 3. The apparatus set forth in claim 1, wherein:
- said second portion is a tubular sleeve and said resilient material substantially fills the interior portion of the tubular sleeve except for the portion of the tubular sleeve constituting the gas pocket.
- 4. The apparatus set forth in claim 3, including:
- a sealant at each end of said sleeve.
- 5. The apparatus set forth in claim 4, wherein:
- the sealant is a silicone which generates an ammonia methanol gas upon curing which fills said gas pocket.
- 6. The apparatus set forth in claim 1, wherein:
- the resilient material is poly-foam.
- 7. The apparatus of claim 1, wherein:
- said reed switch has wires extending therefrom and which are connected to external support wires which are stiff enough to provide the sole structural support for the reed switch and to normally hold the switch out of contact with the resilient material but permitting some movement thereof when subjected to external shock forces.
- 8. The apparatus of claim 1, wherein:
- the reed switch has interval substantially parallel wires which are spaced from each other in an open switch position and in contact with each other in a closed switch position.
- 9. The apparatus of claim 1, wherein:
- said first portion of said bracket body is formed in a generally rectangular shape with substantially flat substantially parallel surfaces for a portion of the length of the bracket for attachment to the track for the vertically movable door.
- 10. The apparatus of claim 1, including:
- means with said first portion of the bracket for attaching the bracket to a guide track at an elevated position above ground level.
CONTINUATION-IN-PART
This is a continuation-in-part of U.S. Ser. No. 08/412,729 filed Mar. 29, 1995 now abandoned.
US Referenced Citations (16)
Non-Patent Literature Citations (1)
Entry |
Moskowitz, Lester R., "Permanent Magnet Design and Application Handbook", pp. 213-214 (1976). |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
412729 |
Mar 1995 |
|