Locking device with alarm utilizing flexible gas impermeable tube

Claim 2

A portable locking apparatus adapted to be mounted on a device to be locked, including an alarm means for detecting the tampering with of a portion of the locking apparatus, comprising: a housing susceptible of being mounted on a device to be locked; an alarm means located in said housing; a sensing means located within said housing for actuating said alarm when a decrease in pressure is sensed by said sensing means; and a flexible gas impermeable tube having a first end and a second end, said tube being adapted to encircle a portion of said device to be locked wherein said first end is pressure sealed whereby after said tube encircles said portion of said device to be locked, said first end is connected to said housing by a locking means and wherein said second end is secured to said sensing means whereby when said pressure in said tube decreases, said alarm is actuated by said sensing means.

Claim 3

The apparatus of claim 1 wherein said alarm means comprises: a gas actuated alarm; and a source of pressurized gas to actuate said alarm.

Claim 4

The apparatus of claim 2 wherein said sensing means is connected to said source of gas and wherein said sensing means allows gas to flow from said source to actuate said alarm only when a decrease in pressure in said tube is sensed.

Claim 5

The apparatus of claim 3 wherein said sensing means comprises a normally closed valve in a path formed between said source of gas and said alarm and wherein said valve is opened when a decrease in pressure in said tube is sensed.

Claim 6

The apparatus of claim 4 further comprising a means for selectively increasing the pressure within said tube.

Claim 7

The apparatus of claim 4 further comprising means located within said housing for selectively preventing the actuation of said alarm means and for selectively deactuating said alarm means.

Claim 8

The apparatus of claim 4 wherein said gas impermeable tube comprises a nylon inner tube located within an armor cablelike outer tube.

Claim 9

The apparatus of claim 1 wherein said alarm means comprises: an electrically actuated alarm; and a source of electrical power for said alarm.

Claim 10

The apparatus of claim 8 wherein said sensing means is electrically connected between said alarm and said source of electrical power and wherein said sensing means completes an electrical circuit between said alarm and said source of electrical power to actuate said alarm only when a decrease in pressure in said tube is sensed.

Claim 11

The apparatus of claim 9 wherein said sensing means comprises a normally open pressure sensitive switch connected between said source of electrical power and said alarm and wherein said switch is closed when a decrease in pressure in said tube is sensed.

Claim 12

The apparatus of claim 10 wherein said gas impermeable tube comprises a nylon inner tube located within an armor cable-like outer tube.

Claim 13

The apparatus of claim 8 further comprising a means for selectively increasing the pressure within said tube.

Claim 14

The apparatus of claim 8 further comprising means for selectively preventing the actuation of said alarm means and for selectively deactuating said alarm means.

Claim 15

A portable locking apparatus adapted to be mounted on a device to be locked, including the tampering with of a portion of the locking apparatus, comprising: a housing susceptible of being mounted on a device to be locked; a gas actuated alarm located within said housing; a source of pressurized gas located in said housing to actuate said alarm; a sensing means located within said housing for releasing said gas from said source and for actuating said alarm when a decrease in pressure is sensed by said sensing means, said sensing means including a valve in a path formed between said source of gas and Said alarm; and a flexible gas impermeable tube having a first end and a second end, said tube being adapted to encircle a portion of said device to be locked wherein said first end is pressure sealed whereby after said tube encircles said portion of said device to be locked, said first end is connected to said housing by a locking means and wherein said second end is secured to said sensing means whereby when said pressure in said tube decreases said valve opens and said alarm is actuated.

Claim 16

A portable locking apparatus adapted to be mounted on a device to be locked, including the tampering with of a portion of the locking apparatus, comprising: a housing susceptible of being mounted on a device to be locked; a gas actuated alarm located within said housing; a source of pressurized gas located in said housing to actuate said alarm; a sensing means located within said housing for releasing said gas from said source and for actuating said alarm when a decrease in pressure is sensed by said sensing means, said sensing means including a valve in a path formed between said source of gas and Said alarm; and a flexible gas impermeable tube having a first end and a second end, said tube being adapted to encircle a portion of said device to be locked wherein said first end is pressure sealed whereby after said tube encircles said portion of said device to be locked, said first end is connected to said housing by a locking means and wherein said second end is secured to said sensing means whereby when said pressure in said tube decreases said valve opens and said alarm is actuated.

Claim 17

A portable locking apparatus adapted to be mounted on a device to be locked, including an alarm means for detecting the tampering with of a portion of the locking apparatus, comprising: a housing susceptible of being mounted on a device to be locked; an electrically actuated alarm located within said housing; a source of electrical power located in said housing for actuating said alarm; a sensing means located within said housing for completing an electrical circuit between said source of electrical power and said alarm when a decrease in pressure is sensed by said sensing means, said sensing means including a switch electrically connected between said source of electrical power and said alarm; and a flexible gas impermeable tube having a first end and a second end, said tube being adapted to encircle a portion of said device to be locked wherein said first end is pressure sealed whereby after said tube encircles said portion of said device to be locked, said first end is connected to said housing by a locking means and wherein said second end is secured to said sensing means whereby said pressure in said tube decreases, said switch closes and said alarm is actuated.

Claim 18

A portable locking apparatus adapted to be mounted on a device to be locked, including an alarm means for detecting the tampering with of a portion of the locking apparatus, comprising: a housing susceptible of being mounted on a device to be locked; an electrically actuated alarm located within said housing; a source of electrical power located in said housing for actuating said alarm; a sensing means located within said housing for completing an electrical circuit between said source of electrical power and said alarm when a decrease in pressure is sensed by said sensing means, said sensing means including a switch electrically connected between said source of electrical power and said alarm; and a flexible gas impermeable tube having a first end and a second end, said tube being adapted to encircle a portion of said device to be locked wherein said first end is pressure sealed whereby after said tube encircles said portion of said device to be locked, said first end is connected to said housing by a locking means and wherein said second end is secured to said sensing means whereby said pressure in said tube decreases, said switch closes and said alarm is actuated.