US4775442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applicator for wallboard tape
Assignee: Individual
•
Filing: 1987-06-05
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Granted: 1988-10-04
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Expires: 2007-06-05
Abstract
Abstract An apparatus for dispensing wallboard tape and wallboard compound is provided with a nozzle which applies the compound through a series of opposed feed channels. Each feed channel applies a bead of compound to one side of the tape as the tape passes through the nozzle in a longitudinally folded condition. Upon exiting the nozzle the tape is unfolded and the compound is uniformly extruded beneath the tape. Venting grooves extend from the feed channels to the nozzle exit to prevent clogging of the feed channels by the tape.
Inventors
- 👤 Charles F. Januska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:46
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/165; B; B44; B44C; B44C7/00; B44C7/02; B44C7/04; E04F21/02; E04F21/026; E04F21/1655; E04F21/1657; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1348; Y10T156/1352; Y10T156/17; Y10T156/1788; Y10T156/179; Y10T156/1795; Y10T156/1798; Y10T156/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
An applicator head for applying wallbord tape and pressurized wallboard compound to wallboard and the like, comprising: a nozzle body for receiving said compound, said nozzle body having an internal passage with opposing sidewalls formed therein for guiding said tape therethrough; and feed channel means operatively associated with said nozzle body for applying said compound in a plurality of beads along said tape, said feed channel means comprising a plurality of spaced apart channels formed within surface portions of each one of said opposing sidewalls of said internal passage.
Claim 2
Dependent Claim
89 words
An applicator head for applying wallbord tape and pressurized wallboard compound to wallboard and the like, comprising: a nozzle body for receiving said compound, said nozzle body having an internal passage with opposing sidewalls formed therein for guiding said tape therethrough; and feed channel means operatively associated with said nozzle body for applying said compound in a plurality of beads along said tape, said feed channel means comprising a plurality of spaced apart channels formed within surface portions of each one of said opposing sidewalls of said internal passage.
Claim 3
Dependent Claim
25 words
The applicator of claim 1, wherein said nozzle body is formed with a pair of headers for distributing said compound to said feed channel means.
Claim 4
Dependent Claim
27 words
The applicator of claim 1, further comprising venting means extending between said feed channel means and the ambient environment for preventing clogging of said feed channel means.
Claim 5
Dependent Claim
26 words
The applicator of claim 1, further comprising support means disposed adjacent said feed channel means for preventing said wallboard tape from clogging said feed channel means.
Claim 6
Dependent Claim
18 words
The applicator of claim 1, wherein said nozzle body comprises a pair of longitudinally extending body half members.
Claim 7
Dependent Claim
31 words
The applicator of claim 1, further comprising trough means operatively associated with said nozzle body, said trough means comprising means for guiding and forcing said wallboard tape into a corner joint.
Claim 8
Dependent Claim
26 words
The applicator of claim 1, further comprising roller means operatively associated with said applicator head for rolling said applicator head over said wallboard and the like.
Claim 9
Dependent Claim
47 words
The applicator of claim 1, wherein said nozzle body is formed with an entry port for receiving said compound, said entry port leading to a roof portion which bridges said opposing sidewalls such that said compound passes over said roof portion and enters said feed channel means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |