US4378921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Negative rotation cinch strap
Assignee: United States Department of the Navy
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Filing: 1981-08-17
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Granted: 1983-04-05
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Expires: 2001-08-17
Abstract
Abstract An improved unitary parachute torso harness, having a single fastening me, wherein an auxiallary tightening strap is attached to the groin straps of said harness. Said auxillary straps are used to prevent torso rotation or harness slippage and to prevent harness elongation in the groin and chest area.
Inventors
- 👤 Ronald E. Allen
- 👤 Robert J. Hudson
- 👤 Marshall W. Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:19
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/22; B64D17/30; Y; Y10; Y10T; Y10T24/00; Y10T24/40; Y10T24/4002; Y10T24/4047
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
206 words
An improved parachute torso harness having a unitary construction utilizing a single fastening means across the front of the torso, said construction including a pair of vertically oriented main lift webbings, a saddle strap attached to the bottom ends of said main lift webbings, a pair of groin straps connected to said saddle strap and passing slidably through said main lift webbing, a lap strap connected to each groin strap, a pair of diagonal backstraps connected to said groin straps terminating in said fastening means at the front of said torso, wherein the improvement comprises: a pair of webbed straps each attached to each of said groin straps, forward of said main lift webbing; and means for tightening said webbed strap pair operably attached to one of said diagonal back straps and said pair of webbed straps; a pair of adjustable buckles through each of which one of said pairs of webbed straps is threaded; a pair of strap retainers slidably mounted about each of said diagonal backstraps aft of each of said main lift webbings; and a pair of buckle straps each attached at the end of each of said strap retainers at one end and to each of said buckles at the other end.
Claim 2
Dependent Claim
206 words
An improved parachute torso harness having a unitary construction utilizing a single fastening means across the front of the torso, said construction including a pair of vertically oriented main lift webbings, a saddle strap attached to the bottom ends of said main lift webbings, a pair of groin straps connected to said saddle strap and passing slidably through said main lift webbing, a lap strap connected to each groin strap, a pair of diagonal backstraps connected to said groin straps terminating in said fastening means at the front of said torso, wherein the improvement comprises: a pair of webbed straps each attached to each of said groin straps, forward of said main lift webbing; and means for tightening said webbed strap pair operably attached to one of said diagonal back straps and said pair of webbed straps; a pair of adjustable buckles through each of which one of said pairs of webbed straps is threaded; a pair of strap retainers slidably mounted about each of said diagonal backstraps aft of each of said main lift webbings; and a pair of buckle straps each attached at the end of each of said strap retainers at one end and to each of said buckles at the other end.
Claim 3
Dependent Claim
32 words
An improved parachute torso harness according to claim 1 wherein each of said webbed straps is attached to one of said groin straps by stitching said webbed strap to said groin strap.
Claim 4
Dependent Claim
26 words
An improved parachute harness according to claim 1 wherein said webbed strap attached to each groin strap is attached just below the lap strap attachment point.
Claim 5
Dependent Claim
38 words
An improved parachute torso harness according to claim 1 having means for attaching the bitter end of each of said webbed straps to said webbed strap after threading said webbed strap through one of said pair of buckles.
Claim 6
Dependent Claim
60 words
An improved parachute torso harness according to claim 4 wherein said attaching means comprises: a first reusable adhering strip attached to the bitter end of said webbed strap; and a second reusable adhering strip attached to said webbed strap between said buckle and said attachment to said groin strap, for mating said first reusable adhering strip in a fixed position.
Claim 7
Dependent Claim
35 words
An improved torso harness according to claim 1 wherein each of said pair of buckles is a friction adapter which grips said webbed strap with a tightness proportionate to the longitudinal tension in said strap.
References Cited (Backward Citations)
CA447998A
Cited
FR790246A
Cited
US2375631A
Cited
US2643836A
Cited
US2979028A
Cited
US3165168A
Cited
US3154272A
Cited
US3424134A
Cited
US3559932A
Cited
US3947927A
Cited
US4090683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |