GB2317226A - Cat-flap entry validation system - Google Patents
Cat-flap entry validation system Download PDFInfo
- Publication number
- GB2317226A GB2317226A GB9619343A GB9619343A GB2317226A GB 2317226 A GB2317226 A GB 2317226A GB 9619343 A GB9619343 A GB 9619343A GB 9619343 A GB9619343 A GB 9619343A GB 2317226 A GB2317226 A GB 2317226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cat
- flap
- validation system
- interruption
- entry validation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000010200 validation analysis Methods 0.000 title claims abstract description 34
- 241000282326 Felis catus Species 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 241000283984 Rodentia Species 0.000 claims description 10
- 230000005764 inhibitory process Effects 0.000 claims description 8
- 238000001228 spectrum Methods 0.000 claims 8
- 230000001447 compensatory effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K15/00—Devices for taming animals, e.g. nose-rings or hobbles; Devices for overturning animals in general; Training or exercising equipment; Covering boxes
- A01K15/02—Training or exercising equipment, e.g. mazes or labyrinths for animals ; Electric shock devices ; Toys specially adapted for animals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K11/00—Marking of animals
- A01K11/006—Automatic identification systems for animals, e.g. electronic devices, transponders for animals
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Birds (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Catching Or Destruction (AREA)
Abstract
A cat-flap entry validation system fixed to the entrance of a cat-flap of the actuated flap-release mechanism variety, to inhibit the entry of a prey-carrying cat, is constructed from three pairs of energy beam transmitters 1 and associated receivers 2 mounted in a fixed plane and direction and angled to the horizontal and so positioned that the interruption of the central beam by the cat's pointed face prior to the interruption of either or both side beams allows the cat admission due to the resultant transmission of an actuating signal to the release mechanism; whilst interruption of either or both side beams by the cat's prey prior to the interruption of the central beam inhibits admission of the cat and prey due to the generation of signal that inhibits the transmission of the actuating signal to the release mechanism. The beams may be infrared or visible light, or ultrasonic or audible sound.
Description
Cat-flap Entry Validation System
This invention relates to a cat-flap entry validation system to inhibit the entry of a cat whilst carrying by mouth rodents, birds, amphibians, or other prey.
Cat-flaps are well known devices by which a cat may at will enter a premise by pushing against a movable flap. Certain cat-flaps require the additional operation of a flap release mechanism, actuated by a device wom around the cat's neck. Such cat-flaps offer protection against intrusion by other cats that do not wear an actuation device, but offer no protection against the introduction of a rodent, bird, amphibian or other prey into the premise as a consequence of its being carried in the cat's mouth during entry through the cat-flap.
According to the present invention there is provided a cat-flap entry validation system comprising an assembly located at the entrance to the cat-flap, comprised from three pairs of energy beam transmitters and associated receivers mounted in a fixed plane and direction and angled to the horizontal and so positioned that the interruption of the central beam by the cat's pointed face prior to the interruption of either or both side beams allows admission to the cat as a consequence of the resultant transmission of an actuating signal to the cat-flap release mechanism; whilst interruption of either or both side beams by a rodent, bird, amphibian or other prey carried in the cat's mouth prior to the interruption of the central beam inhibits admission of the cat and associated rodent, bird, amphibian or other prey as a consequence of the resultant generation of an inhibition signal to inhibit the transmission of the actuating signal to the cat-flap release mechanism.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which:
Figure 1 shows the cat-flap entry validation system intended for connection to the entrance of a cat-flap of the actuated flap-release mechanism variety.
Figure 2 shows the cat-flap entry validation system intended for connection to the entrance of a cat-flap of the actuated flap-release mechanism variety with the central beam interrupted by the pointed face of the cat.
Figure 3 shows the cat-flap entry validation system intended for
connection to the entrance of a cat-flap of the actuated flap-release
mechanism variety with one of the two side beams interrupted by a
rodent, bird, amphibian or other prey carried within the mouth of the cat.
Figure 4 shows the cat-flap entry validation system intended for
connection to the entrance of a cat-flap of the actuated flap-release
mechanism variety with both of the two side beams interrupted by a
rodent, bird, amphibian or other prey carried within the mouth of the cat.
Referring to the figure 1 the cat-flap entry validation system is
constructed from three pairs of energy beam transmitters 1 and
associated receivers 2 mounted at the top and bottom of the holding
supports 3 and 4. Their beams 5 are angled to the horizontal at an
compensatory angle to facilitate the approach of a cat whose head is
inclined downwards to the entrance to allow for the common
occurrence of the cat applying pressure to the flap with its head rather
than the sensitive features of its face. Processing 6 and logic 7 circuitry are provided to allow for:
the transmission of an actuating signal to the cat-flap release
mechanism upon interruption of the central beam prior to the
interruption of either or both side beams
the inhibition of transmission of the actuating signal mentioned above
as a consequence of the interruption of one or both side beams in
which the logic may be set to specify that actuation be inhibited under
the circumstances of interruption of either side beam according to the
logic of non-exclusive Boolean OR, or only upon the occurrence of
simultaneous interruption of both side beams according to the logic
of the Boolean AND operation.
Claims (12)
1. A cat-flap entry validation system comprising an assembly located
at the entrance to the cat-flap, comprised from three pairs of
energy beam transmitters and associated receivers mounted in a
fixed plane and direction and angled to the horizontal and so
positioned that the interruption of the central beam by the cat's
pointed face prior to the interruption of either or both side beams
allows admission to the cat as a consequence of the resultant
transmission of an actuating signal to the cat-flap release
mechanism; whilst interruption of either or both side beams by a
rodent, bird, amphibian or other prey carried in the cat's mouth
prior to the interruption of the central beam inhibits admission of
the cat and associated rodent, bird, amphibian or other prey as a
consequence of the resultant generation of an inhibition signal to
inhibit the transmission of the actuating signal to the cat-flap
release mechanism.
2. A cat-flap entry validation system as claimed in Claim 1 wherein
the inhibition of transmission of an actuating signal to the cat-flap
release mechanism as a consequence of the interruption of one
or both side beams in which the logic may be set to specify that
actuation be inhibited under the circumstances of interruption of
either side beam according to the logic of non-exclusive Boolean
OR operation, or only upon the occurrence of the simultaneously
interruption of both beams according to the logic of the Boolean
AND operation.
3. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the infra
red light spectrum.
4. A cat-flap entry validation system as claimed in Claim I or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the
visible light spectrum.
5. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the ultra
sonic spectrum.
6. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the
audible sound spectrum.
7. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 or Claim 3 or Claim 4 wherein the three pairs of energy beam
transmitters and associated receivers are constructed from
transmitting and receiving components that utilise a continuous
beam of energy.
8. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 or Claim 3 or Claim 4 wherein the three pairs of energy beam
transmitters and associated receivers are constructed from
transmitting and receiving components that utilise a modulated
beam of energy.
9. A cat-flap entry validation system as claimed in Claim 1 wherein
the actuating signal to the cat-flap release mechanism is
generated by electronic analogue and digital circuitry.
10. A cat-flap entry validation system as claimed in Claim 1 wherein
the generation of an inhibition signal to inhibit the transmission of
the actuating signal to the cat-flap release mechanism is
generated by electronic analogue and digital circuitry.
11. A cat-flap entry validation system as claimed in Claim 1 wherein
upon a short time after admission of the cat to the premise
electronic analogue and digital circuitry generate a reverse signal
to the cat-flap release mechanism to allow the flap to be locked
closed again.
12. A cat-flap entry validation system substantially as described
herein with reference to Figures 1 - 6 of the accompanying
drawings.
12. A cat-flap entry validation system substantially as described
herein with reference to Figures 1 - 6 of the accompanying
drawings.
Amendments to the claims have been filed as follows 1. A cat-flap entry validation system comprising an assembly for
location at the entrance to a cat-flap of the actuated flap-release
mechanism variety, comprised from three pairs of energy beam
transmitters and associated receivers mounted in a fixed plane
and direction and angled to the horizontal and so positioned that
the interruption of the central beam by the cat's pointed face prior
to the interruption of either or both side beams allows admission
to the cat as a consequence of the resultant transmission of an
actuating signal to the cat-flap release mechanism; whilst
interruption of either or both side beams by a rodent, bird,
amphibian or other prey carried in the cat's mouth prior to the
interruption of the central beam inhibits admission of the cat and
associated rodent, bird, amphibian or other prey as a
consequence of the resultant generation of an inhibition signal to
inhibit the transmission of the actuating signal to the cat-flap
release mechanism.
2. A cat-flap entry validation system as claimed in Claim 1 wherein
the inhibition of transmission of an actuating signal to the cat-flap
release mechanism as a consequence of the interruption of one
or both side beams in which the logic may be set to specify that
actuation be inhibited under the circumstances of interruption of
either side beam according to the logic of non-exclusive Boolean
OR operation, or only upon the occurrence of the simultaneously
interruption of both beams according to the logic of the Boolean
AND operation.
3. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the infra
red light spectrum.
4. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the
visible light spectrum.
5. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the ultra
sonic spectrum.
6. A cat-flap entry validation system as claimed in Claim I or Claim
2 wherein the three pairs of energy beam transmitters and
associated receivers are constructed from transmitting and
receiving components that operate at frequencies within the
audible sound spectrum.
7. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 or Claim 3 or Claim 4 wherein the three pairs of energy beam
transmitters and associated receivers are constructed from
transmitting and receiving components that utilise a continuous
beam of energy.
8. A cat-flap entry validation system as claimed in Claim 1 or Claim
2 or Claim 3 or Claim 4 wherein the three pairs of energy beam
transmitters and associated receivers are constructed from
transmitting and receiving components that utilise a modulated
beam of energy.
9. A cat-flap entry validation system as claimed in Claim 1 wherein
the actuating signal to the cat-flap release mechanism is
generated by electronic analogue and digital circuitry.
10. A cat-flap entry validation system as claimed in Claim 1 wherein
the generation of an inhibition signal to inhibit the transmission of
the actuating signal to the cat-flap release mechanism is
generated by electronic analogue and digital circuitry.
II. A cat-flap entry validation system as claimed in Claim 1 wherein
upon a short time after admission of the cat to the premise
electronic analogue and digital circuitry generate a reverse signal
to the cat-flap release mechanism to allow the flap to be locked
closed again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9619343A GB2317226B (en) | 1996-09-17 | 1996-09-17 | Cat-flap entry validation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9619343A GB2317226B (en) | 1996-09-17 | 1996-09-17 | Cat-flap entry validation system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9619343D0 GB9619343D0 (en) | 1996-10-30 |
GB2317226A true GB2317226A (en) | 1998-03-18 |
GB2317226B GB2317226B (en) | 1998-07-22 |
Family
ID=10800019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9619343A Expired - Fee Related GB2317226B (en) | 1996-09-17 | 1996-09-17 | Cat-flap entry validation system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2317226B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008041016A1 (en) * | 2006-10-03 | 2008-04-10 | Nicholas Patrick Roland Hill | Rfid pet door |
US20100242854A1 (en) * | 2009-03-05 | 2010-09-30 | Feldberglicht Gmbh | Access device for an animal and computer system |
-
1996
- 1996-09-17 GB GB9619343A patent/GB2317226B/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008041016A1 (en) * | 2006-10-03 | 2008-04-10 | Nicholas Patrick Roland Hill | Rfid pet door |
US8240085B2 (en) | 2006-10-03 | 2012-08-14 | Nicholas Patrick Roland Hill | RFID pet door |
US8539715B2 (en) | 2006-10-03 | 2013-09-24 | Nicholas Patrick Roland Hill | RFID pet door |
EP2983141A1 (en) * | 2006-10-03 | 2016-02-10 | Cambridge Resonant Technologies Ltd | Rfid pet door |
US20100242854A1 (en) * | 2009-03-05 | 2010-09-30 | Feldberglicht Gmbh | Access device for an animal and computer system |
Also Published As
Publication number | Publication date |
---|---|
GB2317226B (en) | 1998-07-22 |
GB9619343D0 (en) | 1996-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020917 |