Patent US5003735A successfully refreshed from Google Patents.
US5003735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marker screw cap
Assignee: Individual
•
Filing: 1989-12-05
•
Granted: 1991-04-02
•
Expires: 2009-12-05
Abstract
Abstract A device for locating a marker screw threadably engaged with a cover in duct means imbedded in a poured concrete wall construction including resilient fibers that are attached to the marker screw at one end and project beyond the outer wall surface but resiliently yield upon engaging with a finishing tool thus facilitating location of said marker screw after the wall has been poured.
Inventors
- 👤 James H. Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:40
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/18; H02G3/185; E; E04; E04B; E04B5/00; E04B5/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
A device locating a marker screw which has one end threadably engaged within a recess in a cover of an outlet in a duct and which is adapted to extend outwardly from the cover toward an outer surface of a wall or floor, during and after pouring of the wall or floor to embed the duct means, the other end of said marker screw adapted to be roughly adjusted below the outer surface, said device comprising a tubular holder attached to said marker screw, elongated resilient fibers positioned and connected at one end in said tubular holder with their other end projecting outwardly beyond the outer surface of the poured wall or floor, for resiliently yielding and temporarily bending over upon engagement by means employed in finishing said outer surface, thus facilitating location of said marker screw after the wall or floor has been poured.
Claim 2
Independent Claim
145 words
A device locating a marker screw which has one end threadably engaged within a recess in a cover of an outlet in a duct and which is adapted to extend outwardly from the cover toward an outer surface of a wall or floor, during and after pouring of the wall or floor to embed the duct means, the other end of said marker screw adapted to be roughly adjusted below the outer surface, said device comprising a tubular holder attached to said marker screw, elongated resilient fibers positioned and connected at one end in said tubular holder with their other end projecting outwardly beyond the outer surface of the poured wall or floor, for resiliently yielding and temporarily bending over upon engagement by means employed in finishing said outer surface, thus facilitating location of said marker screw after the wall or floor has been poured.
Claim 3
Dependent Claim
20 words
The device according to claim 1 wherein said holder is connected to said marker screw by means of a clamp.
Claim 4
Dependent Claim
25 words
The device according to claim 2 wherein said clamp surrounds said locator screw and also encloses said holder containing an elongated tuft of resilient fibers.
Claim 5
Dependent Claim
19 words
The device according to claim 2 wherein said tuft of resilient fibers is a tuft of colored nylon fibers.
References Cited (Backward Citations)
US966086A
Cited
US1956879A
Cited
US2210441A
Cited
US2764886A
Cited
US2975559A
Cited
US3030256A
Cited
US3166631A
Cited
US3373535A
Cited
US4915055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |