Patent US5131101A successfully refreshed from Google Patents.
US5131101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary shielding device for safety helmets
Assignee: Individual
•
Filing: 1991-03-07
•
Granted: 1992-07-21
•
Expires: 2011-03-07
Abstract
Abstract An auxiliary shielding device has a visor and an apparatus for mounting the visor to a shield of a safety helmet. The visor is approximately one-half the longitudinal height of the shield and is tinted to provide eye protection from the sun. The apparatus for mounting includes a pair of shield mounts fixed to distal ends of the shield and a pair of visor mounts fixed to distal ends of the visor. Each shield mount has a track formed therein, and each visor mount has a mechanism which links the visor mount with a corresponding shield mount, rendering the visor longitudinally slidable and anchorable across the shield.
Inventors
- 👤 Chen L. S. Chin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:36
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/226
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
204 words
An auxiliary shielding device for a safety helmet with a shield, comprising: a pair of shield mounts each being fixedly mounted to distal ends of the helmet shield in a longitudinal orientation and having a track formed longitudinally therein; a visor extending substantially across the helmet shield between said shield mounts; and a pair of engaging means for engaging said visor with said shield mount, each said engaging means comprising a visor mount having a recess in which a distal end of said visor is fixed mounted and a first anchoring means formed therein; a track link integrally including (a) an outer end being longitudinally slidably engageable in said track of said shield mount; (b) an inner end being transversely slidably receivable in said recess of said visor mount; and (c) a second anchoring means; and a spring means for providing tension being fitted between said visor mount and said track link by means of said first anchoring means and said second anchoring means, respectively, so that said track link is tensionally urged into said recess and that said visor is slidably anchorable across the helmet shield when said outer end of said track link is engaged with said track of said shield mount.
Claim 2
Dependent Claim
204 words
An auxiliary shielding device for a safety helmet with a shield, comprising: a pair of shield mounts each being fixedly mounted to distal ends of the helmet shield in a longitudinal orientation and having a track formed longitudinally therein; a visor extending substantially across the helmet shield between said shield mounts; and a pair of engaging means for engaging said visor with said shield mount, each said engaging means comprising a visor mount having a recess in which a distal end of said visor is fixed mounted and a first anchoring means formed therein; a track link integrally including (a) an outer end being longitudinally slidably engageable in said track of said shield mount; (b) an inner end being transversely slidably receivable in said recess of said visor mount; and (c) a second anchoring means; and a spring means for providing tension being fitted between said visor mount and said track link by means of said first anchoring means and said second anchoring means, respectively, so that said track link is tensionally urged into said recess and that said visor is slidably anchorable across the helmet shield when said outer end of said track link is engaged with said track of said shield mount.
Claim 3
Dependent Claim
16 words
The auxiliary shielding device as claimed in claim 1, wherein said visor is transparent and tinted.
Claim 4
Dependent Claim
26 words
The auxiliary shielding device as claimed in claim 1, wherein said visor has a longitudinal height approximately one-half of a longitudinal height of the helmet shield.
Claim 5
Dependent Claim
32 words
The auxiliary shielding device as claimed in claim 1, wherein said visor is made out of a flexible and pliable material so as to conform to a curvature of the helmet shield.
Claim 6
Dependent Claim
41 words
The auxiliary shielding device as claimed in claim 1, wherein each said visor mount has a rectangular portion of an outer wall thereof removed, forming an opening to said recess, so that said track link is slidably receivable within said opening.
Claim 7
Dependent Claim
39 words
The auxiliary shielding device as claimed in claim 1, wherein each said outer end of each said track link is hooked so that each said outer end is securely received within each said track of each said shield mount.
Claim 8
Dependent Claim
62 words
The auxiliary shielding device as claimed in claim 6, wherein each said inner end of each said track link has a pair of stabilizing blocks extending outward therefrom so that when said track link is received within said opening of said recess of said visor mount, said stabilizing blocks are received in said recess, preventing any axial rotation of said track link.
Claim 9
Dependent Claim
110 words
The auxiliary shielding device as claimed in claim 1, wherein: said first anchoring means for anchoring said spring means to said track link is a protuberance; said second anchoring means for anchoring said spring means to said visor mount is a pair of longitudinal slots; and said spring means has a pair of straight arms each with a 90° bend in ends thereof and a coil of approximately one and a quarter revolutions (450°) at a midpoint thereof, so that said ends of said spring means are anchorable by said longitudinal slots of said second anchoring means and said coil is anchorable by said protuberance of said first anchoring means.
References Cited (Backward Citations)
US4101980A
Cited
US4047249A
Cited
US4138746A
Cited
GB2052244A
Cited
WO1982000243A1
Cited
US4542538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |