GB2200438A - Safe indicator for firearms - Google Patents
Safe indicator for firearms Download PDFInfo
- Publication number
- GB2200438A GB2200438A GB08800730A GB8800730A GB2200438A GB 2200438 A GB2200438 A GB 2200438A GB 08800730 A GB08800730 A GB 08800730A GB 8800730 A GB8800730 A GB 8800730A GB 2200438 A GB2200438 A GB 2200438A
- Authority
- GB
- United Kingdom
- Prior art keywords
- firing pin
- diaphragm
- principle
- plunger
- weapon
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/44—Safety plugs, e.g. for plugging-up cartridge chambers, barrels, magazine spaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
A safe indicator comprises a device inserted into the breech of a firearm to prevent it from being loaded with live ammunition. This device (or snapcap) includes a head shaped to provide a local diaphragm effect, the diaphragm absorbing the impact of the firing pin and flexing accordingly. <IMAGE>
Description
Improved Safe Indicator, incorporating the use of a Diaphragm Snapcap.
This patent application is presented to cover 'All Weapons' irrespective of type / calibre / mechanism, including the following.
Handguns
Automatic, semi automatic, non automatic, single shot, machine pistols, revolvers, single and double action.
Rifles
Automatic, semi automatic, non automatic, bolt action, single shot.
Machine guns
All types.
Shotguns
Automatic, semi automatic, pump action, bolt action, side by side, over and under, single shot.
The novelty of the invention is to provide a clear visual indicator easily seen from a distance, guaranteeing that the weapon is 100% safe, irrespective of an open or closed breech. If closed the trigger can be pulled, utilizing the old method of spring and plunger snap cap principle, or this Patent
Applications improved diaphragm snapcap principle. The term 'safe' is to be interpreted as not possible to disharge.The use of this invention is only possible when the barrel or breech is void of ammunition. Enclosed is a 'concept only' sketch to describe the principle of the invention when applied to an automatic shotgun.
Therefore the novelties claimed by this application are, a Safe Indicator, and the diaphragm snapcap principle.
Notes to drawings
Sketch 1: Sheet 2
Shows invention 'principle' body can be solid or hollow, and can be made from any suitable material that is durable and compatable with the breech and action of the weapon to utilise the invention.It is also the design intent that the colour of the indicator is such that it can be clearly seen from a distance.
Sectional views sheet 2
Shows invention utililising the existing spring and plunger principle, or alternatively in conjunction with this patents novelty,using the diaphragm principle.
Note 3 sheets 1/2
The shape/contour of indicator will vary to suit any particular type of weapon.And can include a folding feature to facilitate storage.
Sheet 3
Drawing A shows a section of a typical Snapcap, using a plunger and coil spring construction. The plunger absorbs the impact of the firing pin.
Note 1, shows the head of the firing pin impacting into the inner face of the weapons action. This is extremely detrimental to the life of the weapon.
Note 2, Shows schematicaly the normal action construction, housing the functional components, springs and firing pin etc.
Dimension X, indicates the protusion of the firing pin through the action face as when the trigger is pulled.
Note 3, Shows the inevitable deformation of the Snapcap plunger. When the depth of this deformation equals dimension X the Snapcap is no longer effective.
Drawing B. This section shows the concept of a reduced wall thickness to produce a local diaphragm effect. The diaphragm absorbs the impact of the firing pin and flexes accordingly. The prime materials for this design of
Snapcap are plastics and rubbers.
Claims (1)
- ClaimsThis Patent application is to protect the novelty of an invention previously submitted, and given a filing date of 27 January 1987, and an application Number of 8701797.This resubmission is due to the invention being improved by several modifications. The main modification is the addition of an annulus to the top face.The principle is to achieve a diaphragm effect to give resistance to the firing pin when the weapon is dry fired. This was temporarily covered on patent application No 8716847.The following describes the main features of this resubmission.The breech/action/barrel,of a firearm,shotgun,airweapon, cannot hold live ammunition when the safe indicator is in place.The shape,size,material of the safe indicator will be defined by the individual characteristics of the weapon intending to use the invention.When the safe indicator is not in position there will always be the possibility of the weapon being loaded with live ammunition and ready to disharge.The addition of the diaphram principle has the following advantages.The current designs of snapcap have in common a coil spring to activate a plunger ( substitute for the percussion cap )The purpose of the coil spring is to offer resistance to the firing pin.The plunger must be made from a soft type of material,normaly brass to prevent damage to the nose/tip of the firing pin.in use the soft plunger suffers deformation that in time compares with the protrusion of the firing pin through the face of the action. When this has happened the effectiveness of the snapcap is nil.This invention uses the diaphragm principle in conjunction with an appropriate material.The design intent is the diaphragm replaces the spring and the base material has a memory. Therefore making wear of the firing pin contact face minimal.This is intended to give prolonged operational effectiveness.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878701797A GB8701797D0 (en) | 1987-01-27 | 1987-01-27 | Safe indicator |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8800730D0 GB8800730D0 (en) | 1988-02-10 |
GB2200438A true GB2200438A (en) | 1988-08-03 |
Family
ID=10611314
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878701797A Pending GB8701797D0 (en) | 1987-01-27 | 1987-01-27 | Safe indicator |
GB08800730A Pending GB2200438A (en) | 1987-01-27 | 1988-01-13 | Safe indicator for firearms |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878701797A Pending GB8701797D0 (en) | 1987-01-27 | 1987-01-27 | Safe indicator |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8701797D0 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070635A (en) * | 1991-06-20 | 1991-12-10 | Cvetanovich David A | Firing chamber safety plug |
FR2728962A1 (en) * | 1994-12-29 | 1996-07-05 | Massardier Jean Jacques | Firearm accessory fastening device |
DE102005021910A1 (en) * | 2005-05-12 | 2006-11-30 | Georg Manz | Safety device for gun and gun rifle has buffer element, which is arranged in between barrel and frame of arm for clear display of unloaded condition of firearm whereby buffer element covers all cartridge chambers of barrel |
US7886472B2 (en) | 2002-05-31 | 2011-02-15 | Jeffrey L. Chudwin | Firearm safety device and method for using same |
EP4325160A1 (en) * | 2022-08-20 | 2024-02-21 | Przemyslaw Nowak | Visual marker for small arms |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848350A (en) * | 1973-08-10 | 1974-11-19 | H Seminiano | Dry fire cartridge or shot shell |
US4501081A (en) * | 1982-09-29 | 1985-02-26 | Izumi Michael T | Dry fire unit |
US4603498A (en) * | 1985-10-04 | 1986-08-05 | Johnson David A | Externally visible safety device for grenade launcher |
-
1987
- 1987-01-27 GB GB878701797A patent/GB8701797D0/en active Pending
-
1988
- 1988-01-13 GB GB08800730A patent/GB2200438A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848350A (en) * | 1973-08-10 | 1974-11-19 | H Seminiano | Dry fire cartridge or shot shell |
US4501081A (en) * | 1982-09-29 | 1985-02-26 | Izumi Michael T | Dry fire unit |
US4603498A (en) * | 1985-10-04 | 1986-08-05 | Johnson David A | Externally visible safety device for grenade launcher |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070635A (en) * | 1991-06-20 | 1991-12-10 | Cvetanovich David A | Firing chamber safety plug |
FR2728962A1 (en) * | 1994-12-29 | 1996-07-05 | Massardier Jean Jacques | Firearm accessory fastening device |
US7886472B2 (en) | 2002-05-31 | 2011-02-15 | Jeffrey L. Chudwin | Firearm safety device and method for using same |
US8544201B2 (en) | 2002-05-31 | 2013-10-01 | Jeffrey L. Chudwin | Firearm safety device and method for using same |
US9080824B2 (en) | 2002-05-31 | 2015-07-14 | Jeffrey L. Chudwin | Firearm safety device and method of using same |
DE102005021910A1 (en) * | 2005-05-12 | 2006-11-30 | Georg Manz | Safety device for gun and gun rifle has buffer element, which is arranged in between barrel and frame of arm for clear display of unloaded condition of firearm whereby buffer element covers all cartridge chambers of barrel |
DE102005021910B4 (en) * | 2005-05-12 | 2008-04-24 | Georg Manz | Safety device for revolvers, revolver guns and the like. |
EP4325160A1 (en) * | 2022-08-20 | 2024-02-21 | Przemyslaw Nowak | Visual marker for small arms |
Also Published As
Publication number | Publication date |
---|---|
GB8701797D0 (en) | 1987-03-04 |
GB8800730D0 (en) | 1988-02-10 |
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