← Back to Patent Explorer
US4173795A Expired / Lapsed US ⏱️ 0.0 years remaining

Racquetball or squash safety mask

Assignee: Individual
•
Filing: 1978-07-27
•
Granted: 1979-11-13
•
Expires: 1998-07-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A racquetball or squash safety mask having a primary framework assembly, a secondary framework assembly, a grid network covering the secondary framework assembly, and a head strap assembly. The primary framework assembly has a top framework member, a bottom framework member, and a pair of side framework members that function to form a base for the secondary framework assembly and also to support the safety mask upon the wearer's face. The secondary framework assembly is attached to the primary framework assembly and it forms a convex frame having a central vertical strut member and a pair of intermediate strut members all of which extend between the top and bottom framework members. A pair of cross members link the central strut member to the intermediate strut members and the intermediate strut members in turn to the side framework members. The primary framework assembly and the secondary framework assembly are made from light weight metallic rod members that are coated with a high impact plastic material. A grid network covers the secondary framework assembly and it comprises a plurality of wire filaments that are coated with a high impact plastic and which criss-cross each other with their ends secured to the primary framework assembly. The filaments of the grid network are laterally spaced apart a distance greater than one inch but less than two inches. The filaments are also diagonally oriented with respect to the front of the mask such that none of the filaments lie in a vertical plane thereby minimizing the amount of impairment of the wearer's vision. A temple guard member extends rearwardly from each of the side framework members.

Inventors

  • 👤 Alyce Lundin
  • 👤 Robert V. Bravin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 18:35
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/08; A63B71/10; A63B2071/105; A63B69/00; A63B69/02

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 171 words
A racquetball or squash safety mask comprising: a primary framework assembly and a secondary framework assembly; said primary framework assembly having a top framework member, a bottom framework member, and a pair of side framework members that function to form a base for the secondary framework assembly and also to support the safety mask upon the wearer's face: said secondary framework assembly is attached to said primary framework assembly and it forms a convex frame that extends outwardly from said primary framework assembly and, a grid network covering said secondary framework assembly, said grid network comprising a plurality of filaments criss-crossing each other with their ends secured to said primary framework assembly, said filaments of said grid network being laterally spaced apart a distance greater than one inch but less than two inches, said filaments of said grid network being diagonally oriented with respect to the front of said mask such that none of the filaments lie in a vertical plane thereby minimizing the amount of impairment of the wearer's vision.
Claim 2
Dependent Claim 171 words
A racquetball or squash safety mask comprising: a primary framework assembly and a secondary framework assembly; said primary framework assembly having a top framework member, a bottom framework member, and a pair of side framework members that function to form a base for the secondary framework assembly and also to support the safety mask upon the wearer's face: said secondary framework assembly is attached to said primary framework assembly and it forms a convex frame that extends outwardly from said primary framework assembly and, a grid network covering said secondary framework assembly, said grid network comprising a plurality of filaments criss-crossing each other with their ends secured to said primary framework assembly, said filaments of said grid network being laterally spaced apart a distance greater than one inch but less than two inches, said filaments of said grid network being diagonally oriented with respect to the front of said mask such that none of the filaments lie in a vertical plane thereby minimizing the amount of impairment of the wearer's vision.
Claim 3
Dependent Claim 26 words
A racquetball or squash safety mask as recited in claim 1 further comprising a temple guard member extending rearwardly from each of said side framework members.
Claim 4
Dependent Claim 28 words
A racquetball or squash safety mask as recited in claim 1 wherein said primary framework assembly and said secondary framework assembly are made from lightweight metallic rod members.
Claim 5
Dependent Claim 25 words
A racquetball or squash safety mask as recited in claim 3 wherein said lightweight metallic rod members are coated with a high impact plastic material.
Claim 6
Dependent Claim 36 words
A racquetball or squash safety mask as recited in claim 1 further comprising a plurality of resilient pads attached at spaced intervals to said primary framework assembly to cushion said safety mask against the wearer's face.
Claim 7
Dependent Claim 26 words
A racquetball or squash safety mask as recited in claim 5 wherein said resilient pads are detachably attached to said primary framework assembly by Velcro fasteners.
Claim 8
Dependent Claim 27 words
A racquetball or squash safety mask as recited in claim 1 wherein said filaments are formed from piano wire and are coated with a high impact plastic.

References Cited (Backward Citations)

US552557A Cited
US933342A Cited
US1016029A Cited
US1203564A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-11-12 1983-05-14 1983-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-11-12 1987-05-14 1987-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-11-12 1991-05-14 1991-11-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag