VARIABLE LENGTH TANGENTIAL WORM DRIVEN CLAMP

• US 3,769,665 A
• Filed: 08/30/1972
• Issued: 11/06/1973
• Est. Priority Date: 08/30/1972
• Status: Expired due to Term

• Current Assignee: Howard P. Mckown Jr
• Original Assignee: Howard P. Mckown Jr
• Inventors: McKown, Howard P. Jr.
• Primary Examiner(s): Griffin, Donald A.
• Application Number:
  US05/284,777
• Time in Patent Office: 433 Days
• Field of Search: 24/2CW,2EE,23EE,2R,21A,274,280-284,279,19
• US Class Current: 24/274.00R
• CPC Class Codes: B65D 63/08 Joints using buckles, wedges, or like locking members attached to the ends of the elements
• CPC Class Codes: F16L 33/08 in which a worm coacts with a part of the hose-encircling member that is toothed like a worm-wheel
• CPC Class Codes: Y10T 24/1427 Worm and tooth

Abstract

A three part interlocking tangential worm driven clamp in which the desired size of the clamp is selectively formed by a length of band material having a series of spaced openings therein. A worm and housing unit is interlocked with one end of the band by means of the band openings and a slotted take up member is coupled to the opposite end of the band.

Claims

1. A tangential worm driven clamp comprising an elongated flat band having a plurality of spaced elongated rectangular openings therein, a take up member coupled to one end of said band, a first off-set tab having a width greater than the band opening width carried by the take up member received within one of the band openings to secure the take up member to the band, there being a plurality of spaced transverse slots in the take up member, a worm and housing unit coupled to the other end of the band, said worm and housing unit comprising an elongated saddle, a housing secured to the saddle, a worm freely journaled within the housing and a second off-set tab having a width greater than the hand opening width carried by the saddle adjacent the end of the band and coupled thereto, said worm being adapted upon rotation to engage the slots of the take up member to tighten the clamp.

2. A clamp according to claim 1 in which the first and second tab are provided with opposed recesses for engagement with the edges of one of the band openings.

3. A clamp according to claim 2 in which the band openings are recessed at each corner to provide inwardly extending transverse projections at each end thereof.

4. A clamp according to claim 3 in which the first and second tab are provided with hemispheric embossings receivable within the band opening recesses in abutment with the edge thereof nearest the take up member and worm and housing unit respectively.

5. A clamp according to claim 1 in which the tabs are offset to lie in a substantially coplanar position with respect to the band.