US5109751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel path single bay ammunition feed system
Assignee: North American Dynamics
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Filing: 1990-06-06
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Granted: 1992-05-05
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Expires: 2010-06-06
Abstract
Abstract An ammunition feed system wherein a single layer of ammunition is conveyed in a magazine by two independent closed loop conveyors disposed side by side in parallel, serpentine paths. Live rounds are fed on parallel output paths into first and second expansion rotor systems which, in turn, supply the rounds to a pair of feed rotors which insert the rounds alternately into a gun feeding conveyor. Spent rounds are withdrawn from the conveyor by a pair of return rotors, which, in turn, supply third and fourth expansion rotors, which return the spend rounds to the first and second parallel serpentine paths. The feed and return rotors contain pockets for receiving rounds alternating with surfaces for guiding rounds and cooperate with the expansion rotors to double the rate at which ammunition exits the system over that at which it is transferred out of the magazine. Rounds are further positively guided by rotor guide surfaces and auxiliary guiding surfaces during handling by the rotor systems between the magazine and gun feeding conveyor.
Inventors
- 👤 Richard L. Hagen
- 👤 William W. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:48
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/01; F41A9/02; F41A9/61; F41A9/64; F41A9/76
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
Ammunition feed apparatus comprising: a magazine means for providing first and second series of rounds on first and second paths; and path integrator means for receiving the first and second series of rounds and for integrating said first and second series of rounds into a third series of rounds; wherein said path integrator means comprises first and second rotor means located opposite one another for alternately integrating rounds received from two paths into said third series of rounds; and wherein each said rotor means includes a perimeter which contains a plurality of pockets for receiving rounds, each pair of pockets being separated by a surface contoured to guide alternate rounds being transported in the pocket of the opposite rotor means.
Claim 2
Dependent Claim
120 words
Ammunition feed apparatus comprising: a magazine means for providing first and second series of rounds on first and second paths; and path integrator means for receiving the first and second series of rounds and for integrating said first and second series of rounds into a third series of rounds; wherein said path integrator means comprises first and second rotor means located opposite one another for alternately integrating rounds received from two paths into said third series of rounds; and wherein each said rotor means includes a perimeter which contains a plurality of pockets for receiving rounds, each pair of pockets being separated by a surface contoured to guide alternate rounds being transported in the pocket of the opposite rotor means.
Claim 3
Dependent Claim
19 words
The ammunition feed system of claim 1 wherein said magazine means comprises a single layer of vertically disposed rounds.
Claim 4
Dependent Claim
30 words
The ammunition feed apparatus of claim 1 further comprising first and second expansion rotor means cooperating with said pair of rotor means for increasing the linear velocity of said rounds.
Claim 5
Dependent Claim
35 words
The ammunition feed apparatus of claim 3 wherein said first and second expansion rotor means each comprise a two-pocket rotor and first and second three pocket rotors disposed to transfer rounds to said two-pocket rotor.
Claim 6
Dependent Claim
197 words
Ammunition feed apparatus for feeding unfired rounds on first and second paths and returning spent rounds to seventh and eighth paths, comprising: a conveyor means for serially receiving and conveying rounds in a plurality of serially disposed receptacles; first expansion rotor means for receiving unfired rounds from said first and second paths, for increasing the velocity of said unfired rounds and for transferring said unfired rounds to third and fourth paths; a first pair of rotor means cooperating with said receptacles and said first expansion rotor means for guiding unfired rounds travelling on said third and fourth paths alternately into the receptacles of said conveyor means; second expansion rotor means for reducing the velocity between spent rounds on fifth and sixth paths and returning said spent rounds to said seventh and eighth paths; and a second pair of rotor means cooperating with said receptacles and said second expansion rotor means for withdrawing spent rounds from said conveyor means, for separating said spent rounds into first and second groups, and for causing a first group of said spent rounds to travel on said fifth path and said second group of spent rounds to travel on said sixth path.
Claim 7
Dependent Claim
197 words
Ammunition feed apparatus for feeding unfired rounds on first and second paths and returning spent rounds to seventh and eighth paths, comprising: a conveyor means for serially receiving and conveying rounds in a plurality of serially disposed receptacles; first expansion rotor means for receiving unfired rounds from said first and second paths, for increasing the velocity of said unfired rounds and for transferring said unfired rounds to third and fourth paths; a first pair of rotor means cooperating with said receptacles and said first expansion rotor means for guiding unfired rounds travelling on said third and fourth paths alternately into the receptacles of said conveyor means; second expansion rotor means for reducing the velocity between spent rounds on fifth and sixth paths and returning said spent rounds to said seventh and eighth paths; and a second pair of rotor means cooperating with said receptacles and said second expansion rotor means for withdrawing spent rounds from said conveyor means, for separating said spent rounds into first and second groups, and for causing a first group of said spent rounds to travel on said fifth path and said second group of spent rounds to travel on said sixth path.
Claim 8
Dependent Claim
29 words
The feed apparatus of claim 5 further including round guide means cooperating with each rotor means such that each round is continually in touch with a round guiding surface.
Claim 9
Dependent Claim
73 words
Ammunition storage and feed apparatus comprising: a magazine means for providing first and second series of rounds on first and second continuous serpentine paths, wherein both paths are disposed in parallel to form a single layer of rounds; and path integrator means for receiving the first and second series of rounds from the single layer magazine means and for integrating said first and second series of rounds into a third series of rounds.
Claim 10
Dependent Claim
73 words
Ammunition storage and feed apparatus comprising: a magazine means for providing first and second series of rounds on first and second continuous serpentine paths, wherein both paths are disposed in parallel to form a single layer of rounds; and path integrator means for receiving the first and second series of rounds from the single layer magazine means and for integrating said first and second series of rounds into a third series of rounds.
Claim 11
Dependent Claim
39 words
The ammunition feed system of claim 7 wherein said magazine means comprises: a single layer of vertically disposed rounds; and first and second independent closed loop conveyors for conveying said rounds disposed side by side in parallel serpentine paths.
Claim 12
Dependent Claim
37 words
The ammunition feed apparatus of claim 7 wherein said path integrator means comprises a pair of rotor means for alternately integrating rounds received from two paths disposed within said single layer into said third series of rounds.
Claim 13
Dependent Claim
61 words
The ammunition feed apparatus of claim 9 wherein each of said pair of rotor means includes a perimeter which contains a plurality of pockets for receiving rounds, each pair of pockets being separated by a surface contoured to guide alternate rounds being transported in the pocket of the opposing rotor means, whereby said contoured surfaces function as dynamic rotary round guides.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-05 | 1995-11-04 | 1996-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-05 | 1999-11-04 | 2000-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-05 | 2003-11-04 | 2004-05-05 | $7700.00 | Window Closed / Lapsed |