Patent
Automatic pet door
Alister Peter Reid
- 15 Sep 2003
50
TL;DR: In this article, a pet door comprising a flap defining a pet access opening, a door flap pivotally mounted in the opening about a pivot axis located at an upper edge of the door flap, a latch mechanism to bar the door from opening in at least one direction, and a control mechanism for disabling the latch mechanism, the control mechanism including an infrared radiation detector which is mounted above a lower edge of pet access, defines a downwardly directed receiving zone for infrared radiation.
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Abstract: A pet door comprising a flap defining a pet access opening, a door flap pivotally mounted in the opening about a pivot axis located at an upper edge of the door flap, a latch mechanism to bar the door flap from opening in at least one direction, and a control mechanism for disabling the latch mechanism to permit the door flap to open in the said at least one direction, the control mechanism including an infrared radiation detector which is mounted above a lower edge of the pet access opening and defines a downwardly directed receiving zone for infrared radiation.
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References
Patent
Pet feeding system and method of using same
Nan R. W. Lewis,Steven Rylands Brace +1 more
- 29 Jun 2000
TL;DR: In this paper, a pet feeding system which allows only the intended pet to have access to food stored in the dish intended for that pet, and prevents all the other pets in the household from eating food which is not intended for them.
68
Patent
Controllable pet access system
Paul De La Cerda,Brian R. Smith +1 more
- 19 Oct 1998
TL;DR: In this article, a controllable animal access system is described, where a motion detector associated with a reader detects an encoded pet tag worn by a selected animal and actuates locking and unlocking mechanisms in response to reading an accepted code.
66
Patent
Traffic responsive control system for automatic swinging door
Henning N. Kornbrekke,David M. Cirkot,Anthony R. Ranaudo +2 more
- 26 Nov 1984
TL;DR: An automatic door installation with four traffic sensors mounted on the door jambs on opposite sides of the doorway opening and having radiant energy emitters and reflected energy receivers for sensing doorway traffic is described in this article.
59
Patent
Automatic pet door
Henry E. Solowiej
- 09 Mar 2004
TL;DR: In this paper, an automatic pet door system is described, where a rectangular frame is mounted between studs of a wall defining a passage for entry and exit of a pet, and a door slides within the frame between a lower closed position for closing the passage and an upper open position for opening the passage.
54
Patent
Finger actuated device having a proximity detector
Joseph Craig Engle,John Herbert Stevens +1 more
- 08 Feb 2002
TL;DR: In this paper, the authors propose a proximity detector that is operable to sense or detect when a user's finger is proximate or on the button, especially to cause the initiation of a particular feature/function of the device.
53