SE9404206D0 - Automatic control of cat hatch - Google Patents

Automatic control of cat hatch

Info

Publication number
SE9404206D0
SE9404206D0 SE9404206A SE9404206A SE9404206D0 SE 9404206 D0 SE9404206 D0 SE 9404206D0 SE 9404206 A SE9404206 A SE 9404206A SE 9404206 A SE9404206 A SE 9404206A SE 9404206 D0 SE9404206 D0 SE 9404206D0
Authority
SE
Sweden
Prior art keywords
hatch
cat
fixed part
signal
producer
Prior art date
Application number
SE9404206A
Other languages
Swedish (sv)
Other versions
SE9404206L (en
SE506514C2 (en
Inventor
Lennart Holm
Original Assignee
Lennart Holm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lennart Holm filed Critical Lennart Holm
Priority to SE9404206A priority Critical patent/SE506514C2/en
Publication of SE9404206D0 publication Critical patent/SE9404206D0/en
Publication of SE9404206L publication Critical patent/SE9404206L/en
Publication of SE506514C2 publication Critical patent/SE506514C2/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • E06B7/32—Serving doors; Passing-through doors ; Pet-doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The cat hatch involves a fixed part (6) which can be set in an outer wall or in an outer door. In the fixed part is an openable hatch (8) and an opening mechanism (13) which activates the hatch opening. A monitoring device (18) on receipt of signals (15) from the movable part activates the hatch opening mechanism, whereby free passage is afforded to the cat wearing the movable part. The signal emitted from the signal producer (1) is coded. The producer is activated by a magnetic field (16) produced from the fixed part (7). The signal coming from the signal producer is so weak or has such a frequency that it requires free passage from the emitter (2) to the receiver (10). The radio emitter incorporates a crystal oscillator with a stable frequency. The frequency value can be programmed, but practical research shows that 800 kHz is suitable.
SE9404206A 1994-12-05 1994-12-05 Automatically regulated cat hatch SE506514C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9404206A SE506514C2 (en) 1994-12-05 1994-12-05 Automatically regulated cat hatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9404206A SE506514C2 (en) 1994-12-05 1994-12-05 Automatically regulated cat hatch

Publications (3)

Publication Number Publication Date
SE9404206D0 true SE9404206D0 (en) 1994-12-05
SE9404206L SE9404206L (en) 1996-06-06
SE506514C2 SE506514C2 (en) 1997-12-22

Family

ID=20396215

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9404206A SE506514C2 (en) 1994-12-05 1994-12-05 Automatically regulated cat hatch

Country Status (1)

Country Link
SE (1) SE506514C2 (en)

Also Published As

Publication number Publication date
SE9404206L (en) 1996-06-06
SE506514C2 (en) 1997-12-22

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Legal Events

Date Code Title Description
NUG Patent has lapsed