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US 6,820,533 B2Granted

Bolt action rifle

OwnerDale Schuermaninventor

Life of this patent

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Abstract Drawings Claims Description

Abstract

An improved bolt action rifle. In its preferred embodiment, the improved bolt action rifle has at least one locking lug positioned within the bolt and having at its bottom a convex projection adapted to be inserted into a mating convex slot; a locking lug safety plunger located adjacent to a locking lug and adapted to prevent full insertion of the bolt without the presence of the locking lug; a bolt handle lock to lock the bolt in an upright position when the bolt handle is pulled rearward of the receiver; a bolt handle positioning detent to hold the bolt in a downward firing position when the rifle is in condition to be fired; a split receiver ring having two openings, one for permitting the ejection of a cartridge and the other for permitting the insertion of a new cartridge from the magazine; a bolt sleeve lock for locking together portions of the bolt; an ambidextrous magazine release; a magazine ejector; and an improved trigger mechanism based on the use of studs instead of pins.

Claims17

Dependent claims

Claim 1An improved bolt action rifle · 224 wordsNo dependents Claim 2An improved bolt action rifle · 223 wordsNo dependents Claim 3An improved bolt action rifle · 227 words2 dependent Claim 6An improved bolt action rifle · 215 words2 dependent Claim 9An improved bolt action rifle · 253 words5 dependent Claim 15An improved bolt action rifle · 279 words2 dependent

An improved bolt action rifle comprising, in combination:

a stock;
a receiver mounted in said stock;
a trigger assembly mounted in said receiver;
a receiver ring located at a forward end of said receiver;
a barrel located at a forward end of said receiver ring;
a bolt enclosed within said receiver and said receiver ring and adapted to travel forward and rearward within said receiver and said receiver ring;
wherein said bolt further comprises an inner bolt sleeve and an outer bolt sleeve surrounding said inner bolt sleeve;
at least one locking lug slot located within said inner bolt sleeve;
wherein said locking lug slot is concave;
at least one locking lug having an upper portion and a lower projection wherein said upper portion is dimensioned to be retained within a cavity in said outer bolt sleeve and wherein said lower projection is dimensioned to be mounted within said locking lug slot;
wherein said lower projection is convex;
wherein said lower projection has a dovetail shape when viewed in cross-section from an end thereof and wherein said locking lug slot has a mating dovetail shape when viewed in cross-section from an end thereof;
and
wherein said upper portion is dimensioned to contact a mating recessed area within said receiver ring during axial movement of said inner bolt sleeve relative to said outer bolt sleeve.

11 more elements

An improved bolt action rifle comprising, in combination:

a stock;
a receiver mounted in said stock;
a trigger assembly mounted in said receiver;
a receiver ring located at a forward end of said receiver;
a barrel located at a forward end of said receiver ring;
a bolt enclosed within said receiver and said receiver ring and adapted to travel forward and rearward within said receiver and said receiver ring;
wherein said bolt further comprises an inner bolt sleeve and an outer bolt sleeve surrounding said inner bolt sleeve;
at least one locking lug slot located within said inner bolt sleeve;
wherein said locking lug slot is concave;
at least one locking lug having an upper portion and a lower projection wherein said upper portion is dimensioned to be retained within a cavity in said outer bolt sleeve and wherein said lower projection is dimensioned to be mounted within said locking lug slot;
wherein said lower projection is convex;
wherein said lower projection has a T-shape when viewed in cross-section from an end thereof and wherein said locking lug slot has a mating T-shape when viewed in cross-section from an end thereof;
and
wherein said upper portion is dimensioned to contact a mating recessed area within said receiver ring during axial movement of said in ner bolt sleeve relative to said outer bolt sleeve.

11 more elements

An improved bolt action rifle comprising, in combination:

a stock;
a receiver mounted in said stock;
a trigger assembly mounted in said receiver;
a receiver ring located at a forward end of said receiver;
a barrel located at a forward end of said receiver ring;
a bolt enclosed within said receiver and said receiver ring and adapted to travel forward and rearward within said receiver and said receiver rug;
wherein said bolt further comprises an inner bolt sleeve and an outer bolt sleeve surrounding said inner bolt sleeve;
at least one locking lug slot located within said inner bolt sleeve;
wherein said locking lug slot is concave;
at least one locking lug having an upper portion and a lower projection wherein said upper portion is dimensioned to be retained within a cavity in said outer bolt sleeve and wherein said lower projection is dimensioned to be mounted within said locking lug slot;
wherein said lower projection is convex;
wherein said upper portion is dimensioned to contact a mating recessed area within said receiver ring during axial movement of said inner bolt sleeve relative to said outer bolt sleeve;
and
means for preventing full forward movement of said bolt within said receiver and said receiver ring when said upper portion of said at least one locking lug is not present within said cavity in said outer bolt sleeve.

11 more elements

An improved bolt action rifle comprising, in combination:

a stock;
a receiver mounted in said stock;
a trigger assembly mounted in said receiver;
a receiver ring located at a forward end of said receiver;
a barrel located at a forward end of said receiver ring;
a bolt enclosed within said receiver a nd said receiver ring and adapted to travel forward and rearward within said receiver and said receiver ring;
wherein said bolt further comprises an inner bolt sleeve and an outer bolt sleeve surrounding said inner bolt sleeve;
at least one locking lug slot located within said inner bolt sleeve;
at least one locking lug having an upper portion and a lower projection wherein said upper portion is dimensioned to be retained within a cavity in said outer bolt sleeve and wherein said lower projection is dimensioned to be mounted within said locking lug slot;
wherein said upper portion is dimensioned to contact a mating recessed area within said receiver ring during axial movement of said inner bolt sleeve relative to said outer bolt sleeve;
and
means for preventing full forward movement of said bolt within said receiver and said receiver ring when said upper portion of said at least one locking lug is not present within said cavity in said outer bolt sleeve.

9 more elements

An improved bolt action rifle comprising, in combination:

a stock;
a receiver mounted in said stock;
a trigger assembly mounted in said receiver;
a receiver ring located at a forward end of said receiver;
a barrel located at a forward end of said receiver ring;
a bolt enclosed within said receiver and said receiver ring and adapted to travel forward and rearward within said receiver and said receiver ring;
wherein said bolt further comprises an inner bolt sleeve and an outer bolt sleeve surrounding said inner bolt sleeve and further comprising:
at least one locking lug slot located within said inner bolt sleeve;
wherein said locking lug slot is concave;
at least one locking lug having an upper portion and a lower projection wherein said upper portion is dimensioned to be retained within a cavity in said outer bolt sleeve and wherein said lower projection is dimensioned to be mounted within said locking lug slot;
wherein said lower projection is convex;
wherein said upper portion is dimensioned to contact a mating recessed area within said receiver ring during axial movement of said inner bolt sleeve relative to said outer bolt sleeve;
a first cut-out area in a side portion of said receiver ring;
wherein said first cut-out area is dimensioned and positioned to permit the ejection of a cartridge therethrough;
a second cut-out area in a bottom portion of said receiver ring;
wherein said second cut-out area is dimensioned and positioned to permit the feeding of a new cartridge from a magazine therebelow.

13 more elements

An improved bolt action rifle comprising, in combination:

a stock;
a receiver mounted in said stock;
a trigger assembly mounted in said receiver;
a receiver ring located at a forward end of said receiver;
a barrel located at a forward end of said receiver ring;
a bolt enclosed within said receiver and said receiver ring and adapted to travel forward and rearward within said receiver and said receiver ring;
wherein said bolt further comprises an inner bolt sleeve and an outer bolt sleeve surrounding said inner bolt sleeve and further comprising:
at least one locking lug slot located within said inner bolt sleeve;
at least one locking lug having an upper portion and a lower projection wherein said upper portion is dimensioned to be retained within a cavity in said outer bolt sleeve and wherein said lower projection is dimensioned to be mounted within said locking lug slot;
wherein said upper portion is dimensioned to contact a mating recessed area within said receiver ring during axial movement of said inner bolt sleeve relative to said outer bolt sleeve;
and
means for preventing full forward movement of said bolt within said receiver and said receiver ring when said upper portion of said at least one locking lug is not present within said cavity in said outer bolt sleeve
a first cut-out area in a side portion of said receiver ring;
wherein said first cut-out area is dimensioned and positioned to permit the ejection of a cartridge therethrough;
a second cut-out area in a bottom portion of said receiver ring;
wherein said second cut-out area is dimensioned and positioned to permit the feeding of a new cartridge from a magazine therebelow.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/122,165Filed 15 Apr 2002 · us provisional application
Priority: 13 Nov 2001
Published: US 2003/0089014 A115 May 2003
Granted: 23 Nov 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F41A 17/56
Safety arrangements, e.g. safeties: sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to…
F41A 3/42
Having rocking locking elements, e.g. pivoting levers or vanes: hand-operated
F41A 17/38
Magazine safeties: magazine mountings, e.g. for locking the magazine in the gun
F41A 17/46
Safety arrangements, e.g. safeties: trigger safeties, i.e. means for preventing trigger movement

Family

Application60/338,043Us provisional application · filed 13 Nov 2001
US 2003/0089014 A1Pre-grant publication · published 15 May 2003
US 6,820,533 B2This patent

From the US filing history. Foreign family members aren’t listed.

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